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G46665_World_Hwys_April2011.indd 1 2/24/11 2:47 PM welcome

Editor: Mike Woof Contributing Editors: James Foster, Patrick Smith Sales Director: Manuel Battista Sales Managers: Dan Emmerson, Philip Woodgate Classifi ed Advertising: Yvonne Tindall Marketing Director: Sarah O’Brien Production Manager: Nick Bond he UN Decade of Action for Road Safety has been Circulation Manager: Preeti Lalli established as a new programme to address the Offi ce Manager: Kelly Thompson horrifi c and fast climbing death toll on the world’s Internet, IT & Data Services Director: roads. For the 2011-2020 period, improving road James Howard safety will be a key focus for the UN. The need for this Designers: Simon Ward, Andy Taylder TUN initiative is vital. According to data, more than 1.3 million Publisher: Roger Adshead, World Highways people die in road accidents/year. Road-related accidents Publisher: Andrew Barriball, ITS International are a major source of premature deaths and serious injuries worldwide, the true costs of which are almost incalculable Contact both in human and economic terms. The road safety problem London Offi ce is getting worse and should nothing be done, fatalities could Route One Publishing Ltd soon rise to 1.9 million deaths/year. There are specifi c areas Horizon House, Azalea Drive, where the problem needs to be addressed. Around 90% of road Swanley, Kent, BR8 8JR, UK fatalities occur in emerging and developing countries, with the Tel +44 1322 612055 fast growth in vehicle ownership and population in Asia due to Fax +44 161 603 0891 rising incomes proving a deadly combination, as infrastructure E-mail:[initialsurname]@ropl.com and the regulatory environment have diffi culty keeping pace. (eg:[email protected]) The authorities in some Asian nations, China, Malaysia and Thailand for example, are already taking steps to address Mike Woof Nottingham Offi ce safety issues. But more work is needed. Editor, World Highways Route One Publishing Ltd There are countries where measures are proving effective. Huntingdon House, 278-280 Huntingdon Street, Some developed nations that have previously had a poor Nottingham NG1 3LY, United Kingdom record for road safety have made notable improvements, Tel: +44 115 950 8098 Fax +44 161 603 0891 reducing the number of road fatalities over the past decade E-mail: [initialsurname]@ropl.com by up to 50% in some instances. These measures need to (eg: [email protected]) be studied to understand which have been successful and how they could be implemented on a best practice basis in developing nations.

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Informed Authority contents © Route One Publishing Ltd 2011

No part of this publication may be reproduced in any form whatsoever without the express written 14 Cushioning the blow permission of the publisher. Contributors are Trinity discusses optimising barrier encouraged to express their personal and selection for speciÀ c application professional opinions in this publication, and requirements accordingly views expressed herein are not necessarily the views of Route One Publishing Ltd, or the International Road Federation. Safer roads 16 Safety analysis From time to time statements and claims Analysing crash causes correctly are made by the manufacturers and their representatives in respect of their products and can save lives in the future services. Whilst reasonable steps are taken 5 News Road markings to check their accuracy at the time of 21 Reading the road going to press, the publisher cannot be Road marking materials and held liable for their validity and accuracy. Barriers associated manufacturers are Printed by: Headley Brothers 8 End in sight for making sure the latest high- ISSN 1463-6344 turned down ends performance markings products Developments in barrier design are available to authorities increase their safety for road users Sign safety 24 Signs reduce accidents 10 Safer separation New sign systems keep highway Zipper stitches up time savings Road surface safety workers and motorists out of on Sydney bus corridor – 18 Safer road surfaces harm’s way Road safety was a key topic at 1 7woway trafÀ c Australia’s ARRB event 26 Products SZiss roads are beneÀ ting from innovative safety systems - Barry Gilbert-Miguet

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tauiir.indd 1 8/30/2011 9:42:50 PM news

The 8nited Nations has established Road safety 2011-2020 as the Decade of Action epidemic for Road Safety

The World Health Organisation has identified road traffic accidents as an epidemic that is causing over 1.3 million deaths and 50 million non-fatal injuries each year on the world’s roads. This is equivalent to over 10 fully-loaded airliners crashing/day or someone dying or being seriously injured every six seconds. Road safety presents a major problem for humanity and the World Health Organisation is making a call for action to correct this situation now to prevent the carnage from increasing by more than 65% over the next 20 years. In March 2010, the United Nations adopted a resolution pledging to take action to tackle the global public health is dedicated to safer road design. UN Symposium on Safer Roads in Bucharest, epidemic of road deaths. The United Secretary General Ban Ki-moon said: Romania. In the US, the yellow road Nations called for a Decade of Action for “Let us all work together to make sure safety tag for the Decade of Action was Global Road Safety from 2011 to 2020. the world’s roads are safe. We need put on display at a Congressional launch This has the target of making a 50% cut the support from member states and event in front of Capitol Hill, Washington in the projected increase in road traffic community leaders. Most importantly this DC; in New York the tag was featured deaths by 2020. According to some of the UN Decade of Action for Road Safety is for at Times Square; in the United Kingdom world’s leading road safety experts, co- everybody, every expressway, every road the tag illuminated Trafalgar Square; ordinated effort could save 5 million lives and every vehicle. We need a co-ordinated in Mexico, ministers from across Latin and prevent 50 million serious injuries effort. If we lead by example, we can save America met at a road safety summit; at over the next 10 years. millions of lives. This is what the United the EU Parliament in Strasbourg, Michael Developed with the support of the Nations is working very hard for: a safer Schumacher gave his support; in Russia, World Health Organisation, the plan for world for all.” president Dmitry Medvedev called for the Decade of Action brings together Governments, international agencies, action with the tag projected onto Moscow concerned agencies, organisations and civil society organisations and private State University; in Rio de Janeiro, Brazil, groups to reduce the number of accidents companies from more than 100 countries the statue of Christ the Redeemer was and make roads more forgiving. Funding around the world expressed their lit yellow for the Decade of Action; is critical to the success of the Decade commitments by launching their national in Australia, the road safety tag was of Action. As part of the campaign, plans for the Decade of Action. Major illuminated on Sydney Harbour Bridge; in governments will be asked to commit to events included declarations in the Hong Kong close to 1,500 people gathered a 10 year, US$300 million Action Plan Australian and New Zealand parliaments; to beat drums for road victims; and in to improve road safety in developing a launch with actress and Make Roads Vietnam’s Ho Chi Minh City and Hanoi, the countries and to ensure that 10% of road Safe Ambassador Michelle Yeoh in China; road safety tag was projected onto major infrastructure funding in those regions and an International Road Federation landmarks.

Masterful approach to safety

A Masters programme that will ultimately help infrastructure design driver assistance driver reduce trafÀc accidents and inMury on 8. roads performance and road safety policy More than has been launched by /oughborough 8niversity ever before there is a need to understand in the 8. The MSc in Road and 9ehicle Safety not only the theory and practice of individual is led by the 8niversity’s Transport Safety approaches but the way in which they can be Research Centre and has been designed to integrated to bring about maximum casualty foster knowledge and technical expertise in a reductionµ wide range of automotive safety disciplines The course starts this October with Study areas include driver behaviour and modules block-taught to enable both full safety roads and infrastructure design vehicle and part time study A Áexible approach to safety systems crash investigation and human learning means participants can Àt studies systems analysis around work commitments and can gain Programme leader Dr Richard Frampton Postgraduate CertiÀcate and Diploma on their Well-designed roads explained ´Reducing trafÀc inMury on today’s way to the Masters qualiÀcation The Transport provide users with a safer roads no longer relies on any single approach Safety Research Centre is based within the environment and best practices will be shared Improvements to vehicle crashworthiness /oughborough Design School and conducts with a new course run by braking and handling are part of a multifaceted international research, consultancy and /oughborough 8niversity approach which also includes road and teaching in both crash and inMury prevention

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Subscribe to our e-newsletter via intertraffic.com news FEHRL and FHWA sign memorandum of cooperation

The Federal Highway innovation. These will cover Formed in 1989 as provide FEHRL with strong Administration (FHWA) an array of road transport the Forum of European links to the considerable of the US Department of issues including planning, National Highway Research research capacity available Transportation and the Forum environment, right of way, Laboratories, FEHRL is a globally. With a permanent of European National Highway asset management, materials, registered international secretariat based in Brussels, Research Laboratories structures, hydraulics, trafﬁc association comprising more FEHRL is directly governed (FEHRL) located in Brussels, operations, trafﬁc impacts, than 40 national research/ by the directors general of Belgium have signed a road user behaviour, technical centres. Associates the national road research six-year memorandum of economics, safety, and policy. from non-European countries institutes and laboratories. cooperation. This agreement complements the role of the FHWA as an associate of FEHRL, which aims to increase cooperation and coordination in road research, development and deployment, taking into account the shared challenges faced by the FHWA and the members of FEHRL, and the authority provided to the FHWA to undertake international outreach activities. A common transparent coordination and communication platform will be established that Best practice knowledge on will use best practices and road safety measures used address road transport needs. at high risk areas, such as The FHWA and FEHRL will providing site personnel with protection at workzones, will be cooperate on areas including shared between the FHWA in research, development or the US and FEHRL in Europe deployment of technology and

Work zone safety award Indonesia acts on safety The American Road & Safety Power Workshop held No Phones campaign. In the Transportation Builders during the International Bridge national category, the LANE The Indonesian Government is Association’s Transportation Conference in Pittsburgh, Pa. Construction Corporation planning a major safety campaign Development Foundation In the national category, CH2M won for its Safe Trailer in a bid to reduce the country’s (ARTBA-TDF) revealed winners HILL won an award for its Towing Operations for Non- road death rate by 2020. The aim of its 13th annual Roadway Work Zone Safety- Driving to Commercial Vehicles video. of the plan is to cut the number Work Zone Safety Awareness Zero campaign. In the regional In the regional category, of deaths by 50% by 2020 Awards. These were category, Transurban-Fluor Flatiron Construction won and by 80% by 2035, a safety announced at ARTBA’s Traffic and AAA Mid-Atlantic won for its Protecting Work Zones improvement that is desperately Management & Work Zone for their joint Orange Cones - Committee concept. needed. In 2010, trafÀc accidents claimed the lives of 31,234 people in Indonesia, with more than three deaths each hour, according to ofÀcial Àgures from the National European cross border enforcement Police. Actual accident levels may be higher, particularly in It will be two years before an offences result in 75% of road committed and the country rural regions where crashes may efficient cross-border system fatalities; speeding, jumping where a vehicle is registered. go unreported. The Ànancial for fining drivers who commit traffic lights, failing to use Data from the EU suggests costs arising from the reported offences in other European seatbelts and drink driving that foreign drivers account for accidents in 2010 were estimated countries can be implemented. and these will be the focus of some 5% of traffic and as much from US$23.74 billion to $25.38 The European Parliament has the cross-border fine system. as 15% of speeding offences. billion, around 3.1% of Indonesia’s voted for the cross-border Less serious offences will The system in use at present GDP. But from a trafÀc accident traffic offence policy to be be exempted however. The means that the majority of fatality rate of 13.15/100,000 introduced. This will mean that new rules will allow for an cross border traffic offenders people in 2010, the government drivers will be punished for electronic exchange of data are not punished for breaking intends to cut the Àgure to offences committed in other between the European nations the law once they return to 2.63/100,000 people by 2035. EU nations. Four common in which an offence has been their own country however.

A diverse array of safe end treatments is available from a range of major manufacturers that suit both US and European standards

End in sight for turned down ends? When introduced, turned down terminals were an improvement over the ÀVKWDLORUVSRRQWHUPLQDOVEXWLWLVQRZFODLPHGWKDWYHKLFOHUROORYHURU launching is likely with such terminals under high-speed impact conditions

oad authorities worldwide caused impacting vehicles to roll, flip or these dangerous terminals and to enforce know that the most dangerous launch resulting in serious injuries and/or the use of safer terminals instead. A part of a longitudinal barrier fatalities. variety of these crashworthy terminals that is its end for most road users. This issue was recognised and in 1990, have been tested to the United States Understanding the importance the Federal Highway Administration NCHRP 350 or MASH criteria or to the Rof a safe barrier end, researchers have prohibited the use of Turned Down European EN 1317-4 criteria are developed a variety of end treatments End, Fishtail or Spoon Terminals on the commercially available today. or terminals since their introduction in upstream end of barriers located on roads However, their use must be encouraged the 1960s to reduce the dangers of blunt with speeds in excess of 80km/h and and enforced more widely. Unfortunately, ends. A crashworthy end treatment must more than 6,000 vehicles/day (defined as Turned Down End, Spoon and Fish be able to act as an anchor to redirect an high speed, frequent use roads). Terminals continue to be used in many errant vehicle during an impact near the In 1998, because Turned Down End, countries around the world. Too often upstream or nose of the barrier, so it must Fishtail or Spoon Terminals could not pass road authorities or design engineers be very strong. the NCHRP 350 criteria, they were simply look at the previous project and use However, crashworthy end treatments prohibited for use on the National Highway the same drawings for the new project. must also act like a cushion to reduce System in the United States regardless of This mentality needs to change. To put a the deceleration of an errant vehicle design speed or Average Daily Traffic. face on the dangers of Turned Down Ends, that inadvertently impacts the end of the Other countries, including Australia, Israel, think of Mark Noel. He was a typical 16 barrier head-on without ramping, rolling New Zealand, Sweden and the UK also year old US teenager living in Maryland. or pitching. As a result, the end treatment implemented plans to eliminate the use of On August 24th, 2008, a group of friends must also be soft with the ability to from his church youth group were going to cushion an errant vehicle and minimise a surprise birthday party. impact forces on the driver or passengers Noel was a passenger in a two door it contains. Honda Civic. They were travelling on a This creates an engineering challenge rural road, when a large piece of farm and the highway safety engineering equipment was encountered on a curve. community has responded in a positive Too often road authorities The passenger side of the automobile was manner over the past 50 years. In the or design engineers simply forced off the road, subsequently hit a 1960s, the best solutions were fishtail or Turned Down End terminal at the end of spoon-shaped designs that were intended look at the previous project the guiderail and was ramped into a tree to distribute the impact across a wider and use the same drawings just at the end of the guiderail. The driver section of the vehicle. In the late 1960s, “for the new project sustained minor lacerations, bruises, researchers sloped the ends of the barrier short term memory loss and trauma. into the ground to create Turned Down Noel’s injuries included a shearing of End terminals or Texas Twists. While half his brain stem, bruising to the front these terminals did prevent spearing, they and multiple bleeding throughout the 8 Safety & Security for Road Infrastructure ” © Route One Publishing October 2011 barriers

brain, as well as a broken right Femur & lacerations. Noel remained in a coma for four months. Two weeks after the accident, doctors determined that due to the sheered brain stem, Noel’s organs would eventually shut down and that he would die. Fortunately he did live, but not without life changing injuries. Noel had surgery that was required to repair his right foot and is now considered permanently disabled with Traumatic Brain Injury (TBI.) He cannot walk or feed himself and all daily functions require assistance and while he attends school in a special programme, he is placed at an elementary learning level. Bearing in mind the life-changing injuries endured, what was the ﬁnancial cost of not continuing the guiderail further up around the curve and using a crashworthy end treatment? Noel underwent shock trauma, was sent to three different rehabilitation facilities and endured regular doctor visits. Over US$1 million was spent on the emergency response and immediate medical care alone, while the legal fees were vast. And over the long term instead of working and paying taxes, Noel will be receiving government social beneﬁts for the remainder of his life. Would extending the guiderail another 6m and using a crashworthy end treatment have made all A lack of sufÀcient safety barrier on this dangerous curve meant that the trees posed the difference, both from economic and a major hazard to road users, with one young American paying a heavy personal toll human viewpoints? ■

The moveable barrier system allows the city authorities to deal with directional trafÀc Áow quickly, effectively and safely

Safer separation Zipper stitches up time savings on Sydney bus corridor – Mark Bowmer reports

he debut on Australian roads of a specially designed barrier transfer system has already proved its worth since an innovative lane management machine in an elongated S curve it came into operation in January. “We system is already paying dividends configuration. The system then moves the are aware of at least one instance where on one of Sydney’s busiest roads. concrete barriers across one lane to create the barrier physically prevented a vehicle Bus commuters using the new a new lane configuration. crossing onto the wrong side of the road TInner West Busway on Victoria Road are The transfer machine used on Victoria and potentially colliding with another enjoying travel time savings of up to 15 Road has been custom designed, with fully vehicle,” he said. minutes in the morning peak, thanks enclosed operator cabins at either end to In terms of efficiency, the lane transfer in part to the commissioning of the avoid having to turn the machine around process takes only 15 minutes and QuickChange Moveable Barrier System. on the roadway. Both The Zipper and the requires only a single traffic lane to Nicknamed ‘The Zipper’, the barrier roadway are managed and operated by the be closed during that period. Another system is an integral lane management New South Wales Government Roads and important performance measure that tool on the Busway, which is designed Traffic Authority (RTA). drove the selection of The Zipper was the to provide dedicated bus lanes in peak Steven Issa, Manager of Planned actual operation and reliability of the lane periods between Gladesville and the Network Operations at the Transport management system itself. Sydney CBD on one of the city’s most Management Centre, said that The Zipper Issa said that on such a busy road, it is important public transport corridors. As was chosen for the job on the basis of critical that the lane transfer arrangements part of the Busway project, a new three- both safety and efficiency of operation. can be implemented each weekday lane bridge has also been constructed “It reduces the likelihood of a head-on without incident or system failure. The alongside the existing Iron Cove Bridge at crash by providing a physical separation Victoria Road barrier system cannot be Drummoyne. between the carriageways, and it moved without the use of the purpose- The Zipper changes the lane encourages pedestrians to cross Victoria built transfer machine, but as an important configuration along a 1.4km length of the Road at traffic signal controlled locations,” safeguard, the machine can be towed to road corridor in the AM peak to provide he said. “And because the barrier system complete the lane transfer should there a dedicated city-bound bus lane, while is fully operated from within the transfer be a mechanical problem. To date, it has retaining three lanes for city-bound vehicle, workers are not on the road and operated faultlessly. general traffic. By 10am the lane barrier is exposed to traffic. In fact, during transfer Putting safety and operational issues to returned to the centre of the road, ready the vehicle is physically protected and one side, the real success of the new lane for the afternoon rush out of the city. separated from traffic in both directions by management system is being measured The Zipper system uses a series of the concrete barrier. It effectively travels in in its contribution to the reliability and concrete barriers that are picked up by a ‘bubble’ with traffic travelling either side. efficiency of bus operations on the Inner a conveyor system and moved through Issa said that the moveable barrier West Busway.

10 Safety & Security for Road Infrastructure © Route One Publishing October 2011 barriers

TrafÀc Áow is improved and congestion reduced due to the use of the moveable barrier as changes in peak Áow direction can be accommodated

Since the Busway opened, the RTA The same applies to traffic flowing in the says city-bound bus passengers travelling opposite direction. through Drummoyne and Rozelle are Despite its initial success, the RTA saving up to 15 minutes during the says it has no plans to commission The It reduces the likelihood of a morning peak rush hour period. And Zipper system elsewhere on the Sydney although the commissioning of the Busway network. Nevertheless, as an Australian- head-on crash by providing a is primarily about improving public first application of this lane management physical separation between transport performance on the corridor, the system technology, it is certain that the the carriageways, and it RTA is also keenly watching to see what RTA and the other road authorities across “encourages pedestrians to impact it has on general traffic flow. the country will be closely watching how it The RTA says average travel times for performs, and what longer term impact it cross 9ictoria Road at trafÀc city-bound general traffic on the corridor has on congestion management. ■ signal controlled locations are still being assessed, but preliminary Steven Issa findings suggest they are similar or slightly Barrier Systems improved since the Busway opened. www.barriersystems.com

Hill & Smith looks ahead

Safety barriers can contribute barriers and bridge parapets industry to lobby for simulation As a leader in the” Àeld heavily to the UN decade for road however. He pointed out that to be carried out instead, as a technologically, Hill Smith is safety by reducing the severity steel highway barriers tend to be replacement for the more costly looking to boost its international of crashes. Properly speciÀed soft and forgiving on impact for transition testing process. Hill proÀle. Tonks said that the Àrm barriers can ensure that vehicles the vehicle occupant, which is Smith is strongly against this is looking to expand beyond stay in the roadway rather than reÁected in worldwide standards move according to Tonks and he its successful position in the colliding with roadside obstacles by their requirement to record explained that while simulation U. market, particularly in the for instance. However, there are severity indices during testing. can provide useful design and Middle East, Sweden and the US. anomalies to be addressed in the However, bridge parapets tend engineering data, there is no Partnerships are seen as a good sector. While common standards to be rigid by nature, as they are substitute for physical testing future option for market growth are required on barriers in Europe, anchored to the bridge deck. As a to ensure that products meet and Tonks believe that there is there is still work to be done on result one of the most dangerous standards. strong potential for the Àrm to harmonising the way the products points on the road to impacting The differences between expand its business. He said are tested across the continent. cars is at the interface between European and US barriers that there are still comparatively Mark Tonks heads up the Hill the standard highway barrier and standards also cause some few innovators in the vehicle Smith Roads division and he said the bridge parapet. If the barrier issues worldwide. Authorities restraint and ancillary safety that global progress on adopting is too soft the car will embed too in developing nations can be systems market. He added that standards is slowly moving deeply and hit the bridge parapet unsure of which set of standards the company’s leading position in forward, although progress is not also called bridge rail head on. to adopt when establishing developing products and systems uniform between the workzone Tonks said that the Hill Smith their own regulations or even that focus on safety for the vehicle and permanent standards Group ensures that its products specifying requirements on occupant and maximise space improvement. meet safety needs by carrying road projects. Tonks said that in for road designers by limiting Tonks said that one speciÀc out speciÀc design and test work some countries this can lead to deÁection of systems under impact area in which standards need on these areas, as required in confusion as to which standards should result in further growth. to be developed further is for the standards. However Tonks are more suitable, slowing the connecting areas between cautioned that there is a move the implementation of barrier Hill & Smith conventional linear highway from some quarters of the requirements. www.hill-smith.co.uk

Using the Orteco equipment can speed productivity and reduce installation costs for 7woway trafÀc safety barriers

6ZLVVURDGVDUHEHQHÀWLQJIURPLQQRYDWLYH A further development was a device to automatically feed and lift each guardrail VDIHW\V\VWHPVBarry Gilbert-Miguet into position, ready for bolting. The machine is preceded along the roadside by a lorry carrying four pallets of guard wiss roads are benefitting Collaboration began with the purchase rails, enough to enable the system to work from 10 years of creative by Waleco of the first Orteco robot, a quickly and autonomously for half a day. collaboration between two crawler mounted piledriver. Previously Other innovations developed jointly pioneers in their respective the process of laying guardrails include an automated system for boring fields. Sergio Tassinari, involved unloading the components four holes simultaneously into reinforced Smanaging director of Orteco, began his and laying them out along the roadside concrete, as well as a compressed air focus on producing piledriving systems for positioning. However the job can driven hammer drill system for ordinary at a time of economic downturn in Italy, now be completed in a single pass. The concrete. coupled with a quest for independence robot is self-propelled, equipped with Serena Melillo, from Weleco’s marketing spurred by the loss of a key dealership. computer control that allows it to move and information team, is convinced that At the Intertraffic exhibition some years automatically to the next post and drive it this constant evolution has contributed ago he met with Karl Pulfer who had in place. While the initial outlay is greater, significantly to the company maintaining begun moving Swiss company Weleco into Orteco says that this is paid back quickly its lead position. This competitive edge the market for road equipment. The two by the increased productivity and reduced is even more important as projects men shared ideas and were prepared to time and labour costs. Tassinari, said, “It have become bigger and competition invest in innovation. costs more, but you get more.” tighter, notably since tenders for highway construction changed in 2008. Whereas before the company could bid for just the With its Orteco equipment Weleco is able to compete against tough competition for barrier installation work guardrail component, highway initiatives are now allocated on a whole-project basis with large contractors able to sub-contract parts of the work to foreign companies with lower labour costs. Tassinari suggests that innovation is the most dynamic response to the new restraints and challenges currently facing the road sector. His approach is to look for new developments, coupled with better safety and greater efficiency. If the barrier sector is in temporary decline he uses a surge in the photovoltaic industry to innovate on the next generation of robots, notably a new series of models guided by GPS that are able to place a line of posts to an accuracy of 10mm, either semi- automatically or entirely automatically, with the whole project plotted in advance from an on-board computer. ■

Orteco www.orteco.it

12 Safety & Security for Road Infrastructure © Route One Publishing October 2011 www.marcegaglia.com other specifi European andseveral Norms barriers systemcompliantwith engineering andmanufacturing constructions allovertheworld, A safepartnerforroad of steelroad safetybarriers. role asthefi range, Marcegaglia confi itsfullyrenewed productWith on roadways Steel safety largest servicecenter. coated thencuttolengthinEurope’s cold-rolled, hot-dipgalvanizedandcolour steel: top-qualityrawmaterialispickled, in thecontrolled valuechainofMarcegaglia Guardrail production isfullyintegrated rstglobalmanufacturer c localrequirements. rms its rms barriers

End treatment designs reduce impact energy and prevent vehicles from vaulting in the air or from being speared Cushioning the blow Trinity discusses optimising barrier selection IRUVSHFLÀFDSSOLFDWLRQUHTXLUHPHQWV

crash cushion is a passive and varying lengths are also available restraint system used to shield to provide adequate performance level hazards on roadways. It cannot protection for differing speed roads. prevent an accident from When deciding whether to select a Innovative technologies happening but can provide redirective or non-redirective product, it is have been developed Aprotection for the motorist by lessening important to assess the installation fully. to protect road users the severity of an impact. Some typical Is it safe for an impacting vehicle to pass applications for crash cushions would through the crash cushion? For example be exit slip roads, tunnel entrances, toll this would require a safe, clear space on booths, bridge pillars, crossroads and lane the other side of the crash cushion so that separation areas. the impacting vehicle would not cause any J-J approval The fi rst crash cushions were developed secondary accidents. If this is not the case, in the United States in the late 70s and then a vehicle will to be redirected back The New Jersey Turnpike Authority has were the earliest form of passive safety into its original path. approved the J-J Hooks safety barrier device to be used. These early devices Specifi ers can also select uni-directional from Easi-Set Worldwide for use as a were usually empty oil drums arranged or bi-directional barriers. Uni-directional, direct substitute for the current standard systematically in front of the hazard. redirective crash cushions will safely temporary concrete construction barriers. When hit, the drums crushed, transferring absorb vehicle energy and re-direct the J-J Hooks is available in 6.1m lengths and energy from the vehicle into the drums errant vehicle at a safe angle back in the has a New Jersey shape cross-section. The and extending the time of the crash. This direction of travel when hit by a vehicle available conÀ gurations match the details concept evolved and the plastic drums approaching from the direction of the traffi c. shown on NJTA standard drawings TP-24 were fi lled with sand or water. Bi-directional crash cushions are designed and TP-25. J-J Hooks is manufactured by The problem with these early crash to safely redirect errant vehicles even if Jersey Precast based in Hamilton Township, cushions was that they were not able to they are hit from a vehicle travelling in a licensed Easi-Set producer. The J-J Hooks redirect the vehicle, which would often the opposite direction to the traffi c fl ow. positive-connection design has been continue through the barrels and hit the A divided highway median bridge would crash tested and meets the relevant US hazard. Eventually a crash cushion was need to be shielded with a bi-directional safety requirements to NCHRP 350 Test developed that would prevent the vehicle crash cushion, as would a divided highway Level 3. This design requires no separate from passing through and could redirect it need to be shielded with a bi-directional connection hardware, has the fastest back into its original path. Both redirective crash cushion. However, an exit slip setting and removal times, and is currently and non-redirective systems are available road could be shielded with either a uni- approved by more than 41 states and three today and a product’s redirective capability directional or a bi-directional product while Canadian provinces. should be a major consideration for toll booths would normally require uni- Easi-Set Worldwide is a wholly-owned engineers, when deciding on what type of directional barriers, but in some instances subsidiary of Smith-Midland. system to specify for installation. may require bi-directional products. ■ Crash cushions come in varying shapes Easi-Set Worldwide and sizes. Narrow and wide systems are Energy Absorption www.easiset.com available to shield different width hazards www.energyabsorption.com

14 Safety & Security for Road Infrastructure © Route One Publishing October 2011 barriers Bridge solution

Supplier Transpo has met the needs for improved safety on an ageing bridge structure. The bridge required a new barrier rail to meet speciÀc requirements including improved safety and durability, while at the same time an increase in the dead load of the new barrier rail had to be minimised. What came out of this project was a new Louisiana Department of Transporation (LADOTD) recommendation for retroÀtting bridge rail and eliminating the safety walk. In Shreveport, on the Interstate 20, a thin precast polymer concrete shell made to form the desired barrier shape has been used on two projects. This was used to reduce maintenance effort and cost, improve safety for maintenance The Transpo Visi-Barrier sections are easy and quick to install and boost conspicuity and overall safety staff and to provide better aesthetics. The shell is braced against the existing barrier and a eliminate the safety walk and thereby increase the evaluation criteria for the NCHRP Report lightweight material is poured to Àll the void the rail’s potential to redirect vehicles on impact. 350 and the 1989 AASHTO Guide SpeciÀcations. between the shell and the barrier. This retroÀt For these bridges, the existing curb and barrier Conspicuity is ensured as Visi-Barrier has technique has beneÀts over conventional methods, is integral with bridge deck so demolition was a bright white surface and retro reÁective particularly for major crossings in urban areas. not an option. stripe, while the form is made from lightweight The I-20 bridges in Shreveport and Monroe, The new barrier had to meet the 812mm concrete with an internal block and provides Louisiana are a series of overpasses built in minimum height requirement, while the retroÀt minimal increase in dead load. Overall, using the 1970s to cross expanses of water, streets, had to also incorporate the existing kerb and the system allowed LADOT to meet the FHWA’s railway and buildings. The project required bridge barrier, while eliminating demolition containment requirements for these old bridges removing the top surface of deck and installing and maintaining the structural tie-in to deck. In while boosting visibility and no little weight gain. a new concrete wearing surface. However it addition, the new barrier had to conform to the As a result, LADOTD now recommends using was also necessary to ensure the bridge railing existing alignment and any increase in dead load the shell for existing bridge barrier retroÀtting met the safety code but without demolition. had to be kept to a minimum. applications. ■ Since the 1990s, bridge rails with safety walk The solution was to use Transpo’s Visi-Barrier, section usually comprising 254mm kerb height which comprises precast polymer concrete Transpo and 457mm wide top have been retroÀtted to bridge rail panels. This single slope form meets www.transpo.com

Safety analysis

Accurate mapping of road crashes Analysing crash causes correctly can save lives in the future is vital for investigation purposes and preventing further accidents

etermining the cause of to collect data for crash investigations a comparison of the Riegl system against road crashes can provide could help cut the estimated €1.13 billion total station surveying techniques reduces key information for future annual cost of congestion caused by onsite time by some 50%. accident prevention. Crash collisions on the UK’s motorways. Similar The VZ-400 uses sophisticated echo investigations are routinely benefits look likely for other countries digitisation and online waveform analysis Dcarried out by police forces into major wishing to introduce this technology. to achieve high performance and accurate incidents to ﬁnd out whether drivers In the UK, a €3.39 million fund has measurement. The company says that have been at fault and these can been supplied by the Road Ministry to this laser scanning package can achieve sometimes highlight inadequacies in road police forces so as to allow them to accuracies of 5mm at ranges of up to infrastructure as well. purchase laser scanning technology from 600m (an increase of 100m on earlier Carrying out proper crash investigations Nottingham-based 3D Laser Mapping. models). It can be used to measure up to can result in major congestion however as The equipment can be operated in all 122,000 points/second with a 100 x 360° lane and sometimes whole road closures conditions and is being used to produce ﬁeld of view. ■ may be required. This can be costly, so 3D graphics and plans of collisions for use in Laser Mapping has developed a package court. The laser scanner is said to provide 3D Laser Mapping that can help crash investigation teams a greater level of detail and colour in this www.3dlasermapping.com reduce the time required for road closures application than competing units and the while providing quality data. package can be used during the day and Riegl The use of sophisticated laser scanning at night. According to 3D Laser Mapping, www.riegl.com Mersey 7unnel·s improved Àre safety

ngineering consultant Parsons points along the routes. The company safety has been a priority. Brinckerhoff is helping Merseyside assisted in selecting a main contractor Barry Biggs is technical director at EIntegrated Transport Authority and is providing management and Parsons Brinckerhoff in the UK and said, upgrade and modernise fire fighting inspection services during the contractor’s “As we have seen in a number of incidents systems in the Kingsway tunnels, two installation work. across Europe in recent years, it is vital of the longest road tunnels in the UK. The programme has seen Parsons that fire-fighting capability in road tunnels The twin tunnels are both 2.25km long Brinckerhoff leading feasibility, detailed is kept up to date. At Parsons Brinckerhoff, and link Liverpool and Wallasey under design and programme management in we have extensive tunnel engineering and the River Mersey. Built in the 1970s, the close co-ordination with the client and the fire strategy experience. On this project tunnels feature fire-fighting infrastructure emergency services. Final design proposals we have consulted with stakeholders and that is in need of an upgrade to meet cover the tunnels and approach highways assessed current and future predicted current standards. and include an installation programme fire fighting technologies along with new The first move by Parsons Brinckerhoff that minimises traffic disruption. product innovations.” ■ was to evaluate the existing approach Maintaining the integrity of fire- fighting to fire-fighting and then design the new protection on a busy commuter route Parsons Brinckerhoff systems along with nearly 100 fire hydrant during the works is crucial and passenger www.pbworld.com

16 Safety & Security for Road Infrastructure © Route One Publishing October 2011 FROM THE DIRECTOR OF “THE WORLD OF TRAFFIC VIDEO DETECTION”

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WWW.TRAFICON.COM road surface safety

During the ARRB event the Forensic Crash Unit at Mount Cotton provided a test-track day

Safer road surfaces Road safety was a key topic at Australia’s ARRB event

he ARRB Group has hosted the With the assistance of the Queensland face researchers and practitioners of 3rd International Road Surface Department of Transport and Main Roads, skid resistance including how to raise Friction Conference on Australia’s the second day of the conference saw its profile and the need to develop Gold Coast, which was attended a successful Mount Cotton track day, national and international strategies and by 240 delegates from 15 where delegates received insight into initiatives to avert the emerging disaster Tcountries. With the theme of ‘Safer Road Police crash investigation techniques of road accident rates. The sector also Surfaces - Saving Lives, the conference and observed skid-to-stop tests in dry has to implement concepts for safer ran for three days in May 2011. Delegates and wet conditions using various vehicle journeys, use new materials to provide had a two day programme of technical types, ages and configurations. A range of suitable surfaces for the motorcyclist and presentations on a wide range of aspects static and mobile test devices were also cyclist and evaluate the implications of of the management of road surface skid displayed. community against personal risk in setting resistance and texture. The presentations ARRB hosted the conference in investigatory levels. included those given by high-profile association with the NZ Transport Agency ARRB Group is Australia’s and New speakers from the UK, New Zealand and and WDM (UK). The closing address Zealand’s only national road transport Qatar. A day of technical demonstrations was given by ARRB’s managing director, research organisation. Its members completed the conference schedule. Gerard Waldron, who acknowledged are Australian state and territory Delegates were given the opportunity the efforts of the technical steering road authorities, the Australian Local to take part in a forum on the UN Decade committee and the ARRB events team in Government Association, the Australian of Action for Road Safety and how road bringing the conference to Australia for Department of Infrastructure and surfaces can contribute. At a second forum the first time. Delegates were invited to Transport and the NZ Transport Agency. ■ on Disaster Recovery, insight was provided attend the 4th International Road Surface by engineers at the forefront of the Friction Conference, which will be held ARRB challenges presented by the Queensland in the UK in 2014. Several key challenges www.arrb.com.au floods and cyclones and the Christchurch earthquakes. The presentation focussed on the massive task of restoring road networks and associated infrastructure. Topics discussed and demonstrated throughout the program included the Delegates were given the opportunity to take part performance of old vehicles compared in a forum on the UN Decade of Action for Road with new models, the roles of micro and Safety and how road surfaces can contribute macro texture on skid resistance, targeting resources and works to demanding areas and data collection methods. “ 18 Safety & Security for Road Infrastructure ”© Route One Publishing October 2011 s.r.l.

and moves the machine. Our de- signsign allows the pile driver to be removedremo from the crawler and The HD self-propelledself-propelled tracked on ddependability,ependability, resistance, en-en- mountedmou on the back of a truck pile driver is intended for installa- vironmental compatibility and sa- so that our customers can use tion of road safety barriers whe- fety on the job. the most appropriate machine re productivity and dependability This piece of equipment drives for every job, and also allows cu- are essential factors. The new piles with great precision thanks stomers who already own a pile “HD” line is an improvement on to its stability and easy handling. driver to purchase the crawler the previous model with a focus A single operator drives the piles only at a later date.

Pile Driver HD Crawler-Mounted Pile Driver HD with Long Crawler Combined Pile Driver HD - Drilling Pile Driver HD with Excavator Arm and Crane Arm Pile Driver

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But did you also know that: we help manage public transport in cities like Barcelona, Trondheim, and Bucharest? we are one of the leading worldwide suppliers of adaptive traffic control software and we support a wide variety of protocols and standards to help you retain existing legacy systems? we can help municipalities save money with FUTURLUX, the bright choice in LED street lighting? we give road markings a durability boost with our SOLIDPLUS glass beads? we offer conspicuity and safety to paint with highly reflective SWARODIT? we support e-mobility by offering a system of battery charging while electrical cars are parked (EnergieParken®)? we help cooperative systems work so that cars and infrastructure can communicate with each other? we have expertise in detection and traffic data acquisition?

Talk to us first when you want to make your traffic safer, flow better, and more environmentally sound.

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SWARCO I First in Trafﬁc Solutions.

SWARCO Anzeige_A4_Transpoquiop.indd 1 25.08.2011 11:53:26 road markings

An Astucia SolarLite road consultation document issued stud installation is part of jointly by two major European a safety system on “the safety organisations asserts that most improved UK road” the condition of road signs and markings could be the greatest Ahurdle in reaping the benefits of new in-car safety technology. The two heavyweights in road and car safety, EuroRAP and Euro NCAP, recently joined forces to call on the motor industry and the highways sector to work together to ensure that technologies now available in the showroom reach their potential of saving thousands of lives. According to a report from the organisations, Roads that Cars can Read, technologies now arriving in new car showrooms are forecast to save thousands of European lives as they trickle down into universal use. Reading the road Increasingly, cameras and sensors are used to read the road ahead and help the vehicle react early if drivers are heading into danger. Road marking materials and associated manufacturers However, they point out that obscured are making sure the latest high-performance markings signs or faded road markings are hard to read whether using the naked eye or an products are available to authorities in-car camera. John Dawson, chairman of EuroRAP (the European Road Assessment Programme) Indeed, in the UK a recent report from markings are critically important to guide says: “Huge sums have been spent the Road Safety Marking Association road-users safely on these roads. developing technology that is (RSMA), claimed that nearly one-third of “Road markings provide the best, most revolutionising the safety of our vehicles. the length of Britain’s single carriageway simple navigation aid to drivers, who must Little attention has been given to the A-roads have white lines so worn out that to be able to ‘read’ the road at every turn. quality of basic signing and marking with they do not meet recognised standards. Without this most modest of investments, which drivers currently have to cope. According to the LifeLines Report, an motorists are driving blind when we can, “The majority of European deaths are on assessment of more than 2,400km of the in fact, save lives for the cost of a pot of national roads and busy regional roads road network, Britain’s most dangerous paint.” outside towns. The single carriageways roads have the most worn-out centre line However, despite these statistics, much are Europe’s killing fields. We should focus markings of all, leaving drivers clueless is being done by road marking materials this decade on ensuring the quality of the when trying to read the road. and associated manufacturers to make signing and marking on these busy open “Two years ago, just 2% of our major sure the latest high-performance products roads whether or not the technology road network had markings that rated are available to authorities when it comes needs it. virtually non-existent. This figure has risen to markings. “We now need a full survey of the at an alarming rate, and now, nearly a For example, a road once noted for its quality of road signs and markings to tenth of the centre lines on our trade poor safety record has been re-categorised measure the real-world variation in routes are dangerously worn,” says from a medium-high risk-rated road in signing and marking across borders and George Lee, national director of the RSMA. 2004-2006 to a low-medium risk-rated define the working tolerances that are “The high risk of head-on collisions on road in 2007-2009, and rated the most acceptable.” single carriageways means centre line improved UK road by EuroRAP in its current tenth annual report Simple Measures Save Lives. The 11km stretch of road through County Buckinghamshire, south-east England, is the site of an Astucia SolarLite solar-powered road stud installation, “a significant safety measure within an overall safety scheme initiated by Buckinghamshire County Council.” Collectively, the 15 most improved roads in the report contributed to a 62% drop in crashes over three years, falling from 494 fatalities to 190. A mere 1% of roads surveyed qualified to score a top 15 position. EuroRAP has stated that head-on collisions, which account for 20% of lives lost, on single carriageways, are prevented only by road markings. And along with another heavyweight in road and car safety, Euro NCAP, it is saying that the focus this decade should be on ensuring In the US, Swarco Industries the quality of the signing and marking on and Colorado Paint Company have been testing new products busy open roads. Both EuroRAP and Euro NCAP are calling for a full survey of the t

t quality of road signs and markings to Swarco Industries and Colorado Paint Cost efficient cold spray plastic lines measure the real-world variation in Company (subsidiaries of Swarco with wet retroreflectivity and durability are signing and marking across borders and America) recently participated in claimed by Geveko, which offers its cold define the working tolerances that are AASHTO’s [American Association of State spray plastic marking InjectLine. acceptable. Highway and Transportation Officials] The product is a cost-efficient cold spray “Astucia SolarLite road studs have National Pavement Marking Evaluation plastic line with wet retroreflectivity and already proven to reduce road accidents Programme in the state of Pennsylvania. durability for medium trafficked roads by 70% on UK installations. The studs Swarco is testing a series of new ranging from 5,000-20,000 vehicles/day. themselves are entirely sustainable, products with the aim of gaining Field tests on A8 between Munich, charging and activating by natural sunlight additional state approvals and introducing Germany, and Salzburg, Austria, shows RL alone. Visibility is also ten times greater new product systems to state Departments values [night visibility] between 130 and than traditional cats’ eyes and the time for of Transportation. 230 depending on where the lines are a driver to react to an approaching hazard Colorado Paint Company installed its placed on the road and the geometry of is enhanced from 3.2 seconds to 30 seconds new Swarcoplast Series MMA cold plastic the road. when driving at 100km/hour,” says structured wet night formulas, designed to “The results are shown even after three Astucia, a member of the Clearview Group. provide exceptional durability and wet years on a road with snowploughs running The studs have been also been night visibility. It is ideal for concrete and frequently over the markings,” says Geveko. recognised as one of the top three safety asphalt application where durability and “InjectLine is an economic and easy projects in Poland after Astucia’s Polish visibility is needed most, says the company. solution for improving spray markings. By partner, Lunaro, was alerted to the need Also applied was the new MUFA 10 combining PlastiRoute cold spray plastic, for more efficient road safety measures, plural component-modified polyacrylic coarse intermix material (glass beads and assisting in the planning and deployment system that provides rapid set times below anti-skid material), fine UCme drop-on of 120 SolarLite road studs on Road No 3 five minutes and exceptional bead adhesion. material and machinery you get near Przybiernow, Western Pomerania. Applied with traditional epoxy 2:1 mix agglomerate-like structured Type II road Plans are in hand to install a further 140 equipment, this product is said to provide markings in layer thickness of 0.75-1.5mm on the road. good durability on concrete and asphalt by using film thicknesses as low as 0.4mm.” Meanwhile, earlier this year Swarco roadways, and by using Swarco’s Type I Geveko says that InjectLine is a thin Industries celebrated the completion of a beads and Megalux-beads, “excellent dry layer marking with values equivalent to new preformed thermoplastic production reflectivity levels and enhanced wet night thick layer markings, but are efficient in line in a 2,230m² facility in Columbia, visibility is achieved.” comparison to conventional Type II Tennessee, USA, that will produce preform Swarco Industries also installed its new markings in terms of economic material thermoplastic used for intersection line of torch-applied pre-form thermoplastic. usage and high laying coverage. markings and specialty markings in traffic “The 90 mil and 125 mil thick materials The mixture of glass beads and anti-skid and non-traffic markets. will provide customers the durability of material injected into the sprayed line The plant will service markets in the traditional thermoplastic materials with an secures the long term retroreflection and United States, Canada and Latin America. easy-to-install torch application while the skid resistance. “The product offering will initially custom factory-applied glass bead system Small and well embeddable glass beads include white and yellow colours in is designed for consistent and exceptional are sufficient for good retroreflection 91.5cm flat sections in 90mm and 125mm reflectivity right out of the box. No values, for example as proved by P7 BASt thicknesses, with plans to develop the additional drop-on beads are required in certificates, Germany). product offering to include specialty the field.” Other roads were made safe for special colours including blue, red, green and Using the latest resin technology from runs in the cities of Gothenburg, Sweden, orange along with custom designs and Dow (www.dow.com), Colorado Paint and Viborg, Denmark, where race logos,” explains Swarco Industries’ installed its high-build paint systems with organisers had problems with marking up general manager Jon Sproul. Swarco-enhanced blended bead systems. the route for the runners because the The product utilises premium Swarco The combined system is designed to markings had to be there for a limited glass bead technology and application provide improved durability and enhanced time. The solution was AquaRoute Tempi techniques to provide “superior reflective reflectivity over traditional high-build paint from Geveko. properties and performance.” and glass bead systems. The system is a temporary water-based road marking paint made for temporary road markings or track markings. According to Geveko it can be used for re-routing on roads or in airports; for covering permanent markings for a limited time period or for events such as city runs, marathons and exhibitions where a short-term marking is required. Available in white, red, blue and yellow, it can be applied with airless road marking equipment or hand tools, and the marking is worn down quickly by constant wear from traffic and weathering. The lifetime of the markings are 3-8 weeks, depending on the thickness of the line, place of application and general wear and tear: in Gothenburg, the markings stayed for around 30 days. In County Cornwall, southwest England, the Saltash Tunnel is a crucial link between the county and the neighbouring county of Devon, and is used by 38,000 motorists/day. 3i TrafÀc’s iiiLEVEL Smartstud IPT system has been installed in Cornwall’s Saltash Tunnel The three-lane, 410m long single bore road tunnel is part of the tidal flow system

across the three-lane Tamar Bridge. The “Due to the innovative manner in which central lane has a speed limit of 30mph the new temporary marking is (48km/hour) and operates as a reversible manufactured, it can be produced in a lane to cope with holiday and rush-hour wide selection of shapes, lines, colours traffi c, and to maximise traffi c fl ows. It is and designs, including symbols and delineated by illuminated red lane company logos.” markings and supplemented by overhead Paintmark comprises three core control signs. A number of hard-wired components. The traffi cked surface is LED road stud systems were used over the Ennis Prismo’s High Build durable years for lane separation but recently the waterborne traffi c paint, into which high UK Highways Agency and the Tamar index glass beads can be incorporated to Bridge and Torpoint Ferry Authority, opted provide appropriate levels of to install 3i Traffi c’s IPT (Inductive Power retro-refl ectivity, if required. The Transfer) system. system bonds to the road surface via a A total of 714 bi-directional red natural bitumen with excellent adhesive SmartStuds illuminated red lane markings qualities. Between the paint and the are installed over 4km, including on the adhesive is a layer of specially-developed Tamar Bridge, previously not possible due high-strength fabric, which binds the two to the 40mm thickness of the asphalt on Paintmark from Ennis Prismo TrafÀ c together. the steel deck. Lights are spaced at 3m Solutions comprises three core components Eventual removal is achieved by simply and 6m intervals in multiple dimming and warming the product with a gas torch or switching groups. Power supplies are steam hose. ■ relay control linked to the overhead VMS can move without breaking the power lane signals. connection. L7UDIÀF Inductive power transfer (IPT) is the Ennis Prismo Traffi c Solutions has ZZZLLQQRYDWLRQFRP technique that sees power coupled across introduced a pre-formed, cold applied $VWXFLD an air (or other non-metallic material) gap road paint, marketed under the Paintmark ZZZDVWXFLDFRXN by magnetic induction. Power is (patents pending) brand. “Paintmark is DELTA transferred without making direct contact incredibly simple to use. It is quick and ZZZPDGHE\GHOWDFRP with the cable, making it wireless. easy to apply by hand thus minimising (QQLV3ULVPR7UDIÀF6ROXWLRQV For traffi c applications, the cable is costly road closures; it can be traffi cked ZZZHQQLVSULVPRFRP sealed into the road and the light units are immediately and its removal (causing no *HYHNR situated on the road surface above it: damage to the road surface) is virtually ZZZJHYHNRPDUNLQJVFRP being wireless, the light units have greater effortless,” says Ennis Prismo Traffi c 6ZDUFR tolerance than hardwired light units and Solutions. ZZZVZDUFRFRP

Mobile retroreﬂectometer – LTL-M Measurement at trafﬁc speed

s Precision comparable to hand-held instruments s Accurate readings under all driving conditions s Night visibility, daylight contrast and line geometry s Presence of road studs (RRPMs) recorded s Measures marking proﬁles up to 25 mm

LTL-M

DELTA’s LTL-M retrometer is based on new optical technology and can be easily mounted on a car DELTA launches its LTL-M

anish company DELTA has the LTL-M, an existing mobile retrometer technology with patent pending. LTL-M launched its new LTL-M mobile and using a hand-held instrument as a offers accuracy in line with hand-held Dretroreflectometer. reference, and showed that the LTL-M instruments under all driving conditions The company, a leading supplier of measures with an accuracy similar to including bumpy roads and curves, and retroreflectometers for road markings hand-held retrometers. provides continuous measurement at and road signs, says that until now “Hand-held instruments have limitations. normal driving speeds in full length and hand-held retroreflectometers have been They provide sample measurements which width of road markings combined with the only instruments accurate enough are not representative for retroreflection checking RRPMs (cat’s eyes).” and accepted for contractual valid measurements of the full length and DELTA says the system can be measurements of road markings. width of road markings. Hand-held integrated with existing mobile road However, it points to laboratory and instruments may need costly road measurement systems as well as used field tests performed by the Swedish Road closure,” says DELTA. “The LTL-M mobile as a stand-alone unit easily mounted Research Institute (VTI), which compared retroreflectometer is based on a new on a car. ■

sign safety Signs reduce accidents New sign systems keep highway workers and motorists out of harm’s way

he Terwiliger Curves on Interstate Transportation (ODOT). transition zone, where traffic is being 5 (I-5), south of Portland, Oregon, Due to high traffic volumes, highway moved or merged into another lane or is a challenging section of work is routinely done at night and closing temporary alignment. freeway. The curving section is a traffic lane is often required to complete Following the crash, the contractor squeezed between a high rock night working. Recently, when setting up began looking for ways to boost safety and Tcliff to the west and the Willamette River warning signs for a nightly lane closure, read about a new system called SwiftSign, to the east. The roadway snakes its way a contractor’s truck-mounted impact which comprises a pivoting sign, solar into Portland through a number of sharp attenuator (TMA) was struck by a passing panel, control box and remote control. curves and a posted speed of 80km/h. motorist. Unfortunately the motorist With the package, lane closure warning Bounded in both directions by concrete struck the vehicle at an angle, missed the signs can be fixed to concrete barrier or barrier and a narrow median; and, with attenuator and injured the TMA driver. guardrail posts within the work area. traffic volumes over 155,000 vehicles/day From national statistics, rear end Using the remote control, signs can be and growing, this portion of I-5 continues crashes are the most common type of turned toward or away from approaching to be a section demanding caution for work zone crash. Like this incident, traffic as needed, minimising the exposure commuters and the Oregon Department of around 42% of the crashes occur in the time for workers and equipment to

live traffic. The system features an RF The SwiftSign package handheld remote that can operate signs introduced in Oregon can up to 1.5km away. Each SwiftSign is be controlled remotely solar powered and independent of any wiring, so units can be quickly installed or relocated as needed, suiting use in temporary work-zones. The contractor contacted ODOT to discuss using the SwiftSign product, which had not previously been used in the US. ODOT found the system met requirements and decided that SwiftSign could minimise exposure of workers and equipment during lane closures, approving the use of the device and allowing its installation. An order was placed with manufacturer Versilis for three SwiftSign modules to be used on the I-5 project. Versilis suggested fitting optional LED flashing lights to increase nightime visibility. The installation took just 20 minutes/module and signage operations were completed more safely by reducing the exposure of workers to live traffic. Since the SwiftSign system was installed, there have been no injury accidents while setting up the multiple lane closures on this challenging portion of I-5 and the contractor has since ordered an additional four modules. Although innovative in the US, the SwiftSign system has been proven in Quebec, Canada for several years. The system was originally developed to secure a permanent moveable barrier operation In 2006, QMB Barrier established Versilis to develop the products on Highway 13 (A-13) in Montreal. As and the SwiftGate obtained US Federal Highway Administration part of this moveable barrier contract, acceptance in 2007 after successful crash testing QMB Barrier needed to open and close the left lane of the highway four times/ day and was concerned for the safety of “ employees who had to work in the left lane of the highway, turning lane closure traffic signs (SwiftSigns) and pivoting Numerous improvements have been warning signs and moving plastic barrels. plastic gates, (SwiftGates) was installed added including a more powerful Although protected by a TMA, the work in 2003. Since that time every component actuator and increased long distance was considered hazardous. of the system has gone through years of communication between modules, more QMB began developing a safer and testing under adverse atmospheric and efficient solar” panels, a higher capacity more efficient solution for opening and the environmental conditions such as snow, battery with improved recharging closing lanes. The improved version of the freezing rain, corrosive de-icing agents, capabililties and synchronised LED system, with remotely activated pivoting low light and high winds. lighting on panels and gates. In 2006, QMB Barrier established Versilis to develop the products and the SwiftGate obtained US Federal Highway Administration acceptance in 2007 after successful crash testing. The updated SwiftSign and SwiftGate modules first installed in 2003 are still in use on the A-13 highway in Montreal. All lane openings and closures are made remotely and QMB has experienced no injury accidents in this time. While gates have been crashed into on some occasions, drivers often depart without stopping, while only a few sections of the gates are replaced. This success resulted in the Quebec Ministry of Transportation using the system on long term construction projects, such as the reconstruction of the Galipeault Bridge. More recently, in April, 2011, SwiftSigns and Swift Gates were installed on the northern approach to the Jacques-Cartier ■ Since the SwiftSign Bridge to provide a reversible centre lane. equipment was installed in Oregon Versilis www.versilis.com

Light sure High output Avery Dennison says it offers an innovative product that can mproved safety is claimed assist state and municipal when using new LED road authorities in maintaining Ilighting systems from Peter reÁectivity of trafÀc and safety Berghaus. The firm’s latest signs to ensure they comply with high-output LED technology regulations. is now being fitted in flat LED The new Avery Dennison warning light units and can Minimum RetroreÁectivity be used for a wide range of Compliance Kit is said to be applications. The technicians affordable and easy to use at Berghaus have developed and can quickly determine if systems that use a single Low running costs and an existing sign meets new reliable performance standards for retroreÁectivity. high-output LED, instead of are claimed for the the multiple LEDs employed by new lighting system The kit contains calibration rival manufacturers. According from Peter Berghaus sign standards and comparison to Peter Berghaus its single panel standards and allows road LED delivers high performance the ambient brightness. The control developed by Berghaus authorities to test existing signs illumination. This has been variable lighting adjustment include electronic reverse for compliance. verified by test results from ensures that road users are polarity protection and low The user holds the kit’s the German Federal Highway not dazzled and current voltage protection. In addition, comparison panel next to a sign. Research Institute (BASt). consumption can even be the lights can operate with If the sign is as bright as the Compared to existing reduced to 55 mA at 24V when either 12 V or 24 V DC without panel, the sign is in compliance, if halogen lighting technology, the unit is used in complete having to switch over. The not, it needs to be replaced. The the new system uses far less darkness. sophisticated electronics rule calibration sign standards come current and offers a longer The maintenance-free out the risk of damage from in all colours with retroreÁectivity operating period with just high-output LED also has reverse polarity, incorrect levels and are engineered to one battery charge. The unit a longer service life than operating voltage and possible match the values speciÀed in the comes with an integrated halogen lamps, reducing total discharge. safety requirements. automatic dimmer that adapts the need for servicing and Agency personnel can easily the luminosity of the LED boosting reliability. Other Peter Berghaus calibrate their vision prior to advance warning light to suit advantages in the electronic www.peterberghaus-signalbau.de conducting night-time sign inspections and mark signs as pass, fail or marginal. The visual assessment method using the kit is said to be simple, effective and fully compliant with Federal Highway Administration (FHWA) recommendations for sign evaluation. In accordance with the regulations, state and municipalities have until mid- January 2012 to select and begin employing an assessment or management method to maintain trafÀc sign retro-reÁectivity. By mid-January 2015, authorities must replace regulatory, warning and post-mounted guide signs that fail to meet established minimums. By mid-January 2018, all overhead guide and street name signs that fail to meet established minimums will also have to be Friction grip replaced. The Avery Dennison Compliance Kit is an accurate, approved and cost-effective Ennis Prismo says that an accident had been a particular problem so addition to pedestrian crossings method for testing existing blackspot in Sweden is beneÀting 300m2 of Tyregrip, incorporating the system can provide safe signage according to Avery from the use of its Tyregrip high light and dark bauxite, was surfacing and approaches at trafÀc Dennison Graphics and ReÁective friction surfacing product. This applied. The high friction, anti- lights, road junctions, bridges, Solutions. product was installed to reduce skid surfacing, is manufactured roundabouts, sharp bends and The Àrm is working with the accidents at a noted danger area in by Ennis Prismo TrafÀc Safety other hazardous locations. The agencies to ensure its processes the Swedish city of Västerås, some Solutions. work at Västerås was carried out meet requirements and the 100km from capital Stockholm. The product suits diverse by Swedish contractor, EKC Sverige retro-reÁective values for both the Tyregrip was speciÀed to provide an climatic conditions and is cold- AB, for the local authority, Västerås calibration sign standards and anti-skid approach to a pedestrian applied. It uses a two-component Community. comparison panel standards are crossing in order to cut braking epoxy material with 1-3mm bauxite certiÀed by Avery Dennison. distances for oncoming vehicles. aggregate, to form an exceptionally (QQLV3ULVPR The speed of trafÀc in this location durable high friction surfacing. In ZZZHQQLVSULVPRFRP Avery Dennison ZZZUHÁHFWLYHVDYHU\GHQQLVRQFRP

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