Accommodating Oversize/Overweight Vehicles at Roundabouts
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Roundabout Planning, Design, and Operations Manual
Roundabout Planning, Design, and Operations Manual December 2015 Alabama Department of Transportation ROUNDABOUT PLANNING, DESIGN, AND OPERATIONS MANUAL December 2015 Prepared by: The University Transportation Center for of Alabama Steven L. Jones, Ph.D. Abdulai Abdul Majeed Steering Committee Tim Barnett, P.E., ALDOT Office of Safety Operations Stuart Manson, P.E., ALDOT Office of Safety Operations Sonya Baker, ALDOT Office of Safety Operations Stacey Glass, P.E., ALDOT Maintenance Stan Biddick, ALDOT Design Bryan Fair, ALDOT Planning Steve Walker, P.E., ALDOT R.O.W. Vince Calametti, P.E., ALDOT 9th Division James Brown, P.E., ALDOT 2nd Division James Foster, P.E., Mobile County Clint Andrews, Federal Highway Administration Blair Perry, P.E., Gresham Smith & Partners Howard McCulloch, P.E., NE Roundabouts DISCLAIMER This manual provides guidelines and recommended practices for planning and designing roundabouts in the State of Alabama. This manual cannot address or anticipate all possible field conditions that will affect a roundabout design. It remains the ultimate responsibility of the design engineer to ensure that a design is appropriate for prevailing traffic and field conditions. TABLE OF CONTENTS 1. Introduction 1.1. Purpose ...................................................................................................... 1-5 1.2. Scope and Organization ............................................................................... 1-7 1.3. Limitations ................................................................................................... -
PRECISION INTERFEROMETER 012-07137B Precision Interferometer
Includes 012-07137B Teacher's Notes Instruction Manual and and Typical Experiment Results Experiment Guide for the PASCO scientific Models OS-9255A thru OS-9258A PRECISION INTERFEROMETER 012-07137B Precision Interferometer Table of Contents Section Page Copyright, Warranty, and Equipment Return .................................................ii-iii Introduction ...................................................................................................... 1 Equipment ........................................................................................................ 2 Theory of Operation ......................................................................................... 4 Michelson Twyman-Green Fabry-Perot Setup and Operation ......................................................................................... 6 Tips on Using the Interferometer...................................................................... 9 Sources of Error Troubleshooting Experiments Experiment 1: Introduction to Interferometry ..................................... 11 Experiment 2: The Index of Refraction of Air ................................... 13 Experiment 3: The Index of Refraction of Glass ................................ 15 Suggestions for Additional Experiments ......................................................... 17 Maintenance .................................................................................................... 18 Teacher's Guide .......................................................................................... -
Chapter 4 Low-Volume Roads Engineering
Chapter 4 Chapter Chapter 4 Low-Volume Roads Engineering Low-V Low-V Low-V Low-V Low-V olume R olume R olume R olume R olume R “You get what you Inspect, not what you Expect.” LOW VOLUME ROAD is considered a road The basic steps are: oads Engineering oads Engineering oads Engineering oads Engineering oads Engineering that has relatively low use (an Average Planning A Daily Traffic of less than 400 vehicles per day), Location low design speeds (typically less than 80 kph), and Survey corresponding geometry. Most roads in rural areas are Design low-volume roads. A well planned, located, designed, Construction constructed, and maintained low-volume road system Maintenance is essential for community development, flow of goods If any one of these steps is omitted, a road may and services between communities, and resource perform poorly, not meet its expectations, fail management activities. However roads, and particularly prematurely, require unnecessarily high maintenance, or road construction, can create more soil erosion than cause environmental impacts. Without planning and most other activities that occur in rural areas. Proper good location, a road may not adequately serve its users planning and design of the road system will minimize or may be in a problematic area. Survey and design are adverse impacts to water quality. Poorly planned road needed to fit the road to the ground and have it function systems can have high maintenance and repair costs, properly. Good construction insures that the design is contribute to excessive erosion, and fail to meet the needs implemented and built with some degree of quality of the users. -
City Maintained Street Inventory
City Maintained Streets Inventory DATE APPROX. AVG. STREET NAME ACCEPTED BEGINNING AT ENDING AT LENGTH WIDTH ACADEMYText0: ST Text6: HENDERSONVLText8: RD BROOKSHIREText10: ST T0.13 Tex20 ACADEMYText0: ST EXT Text6: FERNText8: ST MARIETTAText10: ST T0.06 Tex17 ACTONText0: WOODS RD Text6:9/1/1994 ACTONText8: CIRCLE DEADText10: END T0.24 Tex19 ADAMSText0: HILL RD Text6: BINGHAMText8: RD LOUISANAText10: AVE T0.17 Tex18 ADAMSText0: ST Text6: BARTLETText8: ST CHOCTAWText10: ST T0.16 Tex27 ADAMSWOODText0: RD Text6: CARIBOUText8: RD ENDText10: OF PAVEMENT T0.16 Tex26 AIKENText0: ALLEY Text6: TACOMAText8: CIR WESTOVERText10: ALLEY T0.05 Tex12 ALABAMAText0: AVE Text6: HANOVERText8: ST SWANNANOAText10: AVE T0.33 Tex24 ALBEMARLEText0: PL Text6: BAIRDText8: ST ENDText10: MAINT T0.09 Tex18 ALBEMARLEText0: RD Text6: BAIRDText8: ST ORCHARDText10: RD T0.2 Tex20 ALCLAREText0: CT Text6: ENDText8: C&G ENDText10: PVMT T0.06 Tex22 ALCLAREText0: DR Text6: CHANGEText8: IN WIDTH ENDText10: C&G T0.17 Tex18 ALCLAREText0: DR Text6: SAREVAText8: AVE CHANGEText10: IN WIDTH T0.18 Tex26 ALEXANDERText0: DR Text6: ARDIMONText8: PK WINDSWEPTText10: DR T0.37 Tex24 ALEXANDERText0: DR Text6: MARTINText8: LUTHER KING WEAVERText10: ST T0.02 Tex33 ALEXANDERText0: DR Text6: CURVEText8: ST ARDMIONText10: PK T0.42 Tex24 ALLENText0: AVE 0Text6:/18/1988 U.S.Text8: 25 ENDText10: PAV'T T0.23 Tex19 ALLENText0: ST Text6: STATEText8: ST HAYWOODText10: RD T0.19 Tex23 ALLESARNText0: RD Text6: ELKWOODText8: AVE ENDText10: PVMT T0.11 Tex22 ALLIANCEText0: CT 4Text6:/14/2009 RIDGEFIELDText8: -
TOLL ROAD SIGNS Section 2F.01 Scope Support: 01 Toll Highways Are Typically Limited-Access Freeway Or Expressway Facilities
2009 Edition Page 237 CHAPTER 2F. TOLL ROAD SIGNS Section 2F.01 Scope Support: 01 Toll highways are typically limited-access freeway or expressway facilities. A portion of or an entire route might be a toll highway, or a bridge, tunnel, or other crossing point might be the only toll portion of a highway. A toll highway might be a conventional road. The general signing requirements for toll roads will depend on the type of facility and access (freeway, expressway, or conventional road). The provisions of Chapters 2D and 2E will generally apply for guide signs along the toll facility that direct road users within and off the facility where exit points and geometric configurations are not dependent specifically on the collection of tolls. The aspect of tolling and the presence of toll plazas or collection points necessitate additional considerations in the typical signing needs. The notification of the collection of tolls in advance of and at entry points to the toll highway also necessitate additional modifications to the typical signing. 02 The scope of this Section applies to a route or facility on which all lanes are tolled. Chapter 2G contains provisions for the signing of managed lanes within an otherwise non-toll facility that employ tolling or pricing as an operational strategy to manage congestion levels. Standard: 03 Except where specifically provided in this Chapter, the provisions of other Chapters in Part 2 shall apply to toll roads. Section 2F.02 Sizes of Toll Road Signs Standard: 01 Except as provided in Section 2A.11, the sizes of toll road signs that have standardized designs shall be as shown in Table 2F-1. -
Route Assessment for Multi-Combination Vehicles (MCV) and Performance Based Standards (PBS) Vehicles in Queensland
Guideline Route Assessment for Multi-Combination Vehicles (MCV) and Performance Based Standards (PBS) Vehicles in Queensland June 2021 Copyright © The State of Queensland (Department of Transport and Main Roads) 2021. Licence This work is licensed by the State of Queensland (Department of Transport and Main Roads) under a Creative Commons Attribution (CC BY) 4.0 International licence. CC BY licence summary statement In essence, you are free to copy, communicate and adapt this work, as long as you attribute the work to the State of Queensland (Department of Transport and Main Roads). To view a copy of this licence, visit: https://creativecommons.org/licenses/by/4.0/ Translating and interpreting assistance The Queensland Government is committed to providing accessible services to Queenslanders from all cultural and linguistic backgrounds. If you have difficulty understanding this publication and need a translator, please call the Translating and Interpreting Service (TIS National) on 13 14 50 and ask them to telephone the Queensland Department of Transport and Main Roads on 13 74 68. Disclaimer While every care has been taken in preparing this publication, the State of Queensland accepts no responsibility for decisions or actions taken as a result of any data, information, statement or advice, expressed or implied, contained within. To the best of our knowledge, the content was correct at the time of publishing. Feedback Please send your feedback regarding this document to: [email protected] Guideline, Transport and Main Roads, -
Daviess County Road and Street Index
2/22/2021 Daviess County Road and Street Index Route Begin End Length Road Name Number Location Location (miles) Abbie Avenue 1078 KY 2830 Dead End 0.143 Access Road to KY 456 1195 KY 456 Dead End 0.060 Acorn Ridge Court 1334 Beech Hill Drive Dead End 0.141 Affirmed Court 1010D Bold Forbes Way Cul-de-sac 0.047 Alley - 1 (Maceo) 1072L Church Lane 189' W.of High St. 0.094 Alley - 2 (Maceo) 1438 Sacra Drive Dead End 0.039 Alley - 3 (Stanley) 1355C Church Street US 60 0.136 Alley - 4 (Stanley) 1355E Church Street Griffith Station Road 0.103 Alley - 5 (Stanley) 1355D Church Street French Island Road 0.095 Alley - 6 (Brown Court) 1092Z Brown Court Stewart Court 0.137 Alma Court 1112C Waterfield Drive Cul-de-sac 0.159 Alsop Lane 1092A8 US 60 City Limits 0.442 Alvey Bridge Road 1298 KY 279 Hayden Bridge Road 1.454 Alvey Park Drive East 1105 KY 54 Alvey Park Drive W 0.328 Alvey Park Drive West 1106 KY 54 Alvey Park Drive E 0.340 Amethyst Court 1420E Diamond Drive Cul-de-sac 0.053 Antler Avenue 1120E Dead End Foors Lane 0.604 Aristides Drive 1010P Bold Forbes Way Cul-de-sac 0.132 Ashbyburg Road 1247 KY 81 KY 554 1.116 Ashland Avenue 1387B Rand Road (west) Rand Road (east) 0.327 Ashland Avenue Spur 1387B-80 Ashland Avenue End of Maintenance 0.025 At The Post Court 1507k Stirrup Loop Cul-de-sac 0.140 Aubrey Road 1072B Rockport Ferry Road Dead End 0.393 Aubrey Road Connector - 1 1072B-70 Aubry Road KY 2830 (south) 0.019 Aubrey Road Connector - 2 1072B-71 Aubry Road KY 2830 (north) 0.027 Aull Road 1031 Jack Hinton Road KY 144 2.538 Autumn Creek 1213 -
TOLL TMS WEST Transporting Dangerous Goods
TOLL TMS WEST Transporting Dangerous Goods TMS West Tom Freeman – Regional Manager (TransSafe Presentation August 2017) 1 The Supply Chain ° The importance of feeding the mines sites with explosive products is critical to WA’s viability ° The dangerous goods which we transport are governed by the Dangerous Goods Act and its regulations – applied by Department of Mines Industry Regulation and Safety (DMIRS) ° TMS is responsible for moving 80% of the Ammonium Nitrate by road (ex CSBP) to supply the mining industry of WA TMS West Tom Freeman – Regional Manager (TransSafe Presentation August 2017) 2 Operating Fleet and Personnel TGL Mining West currently operates 94 vehicles in regional WA, ranging from quad road trains to single trailer movements transporting various forms of Ammonium Nitrate and Cyanide. These vehicles pick-up and deliver based on customer requirements and forecasts. TGL Mining West has the ability to deliver ANsol, Emulsion, Cyanide, Bagged and Bulk Ammonium Nitrate. Fleet Personnel ° 11 x AB Triple Belly Dumper Sets ° 108 x Drivers ° 4 x Quad Belly Dumper Sets ° 19 x Operational/Admin Staff ° 26 x AB Triple End Tipper Sets ° 34 x TGOS Equipment Staff ° 7 x Pocket Road Train ANsol Tanker Sets ° 3 x Pocket Road Train ANE Tanker Sets ° 2 x Quad Road Train ANE Tanker Sets ° 10 x Triple Road Train ANE Tanker Sets ° 2 x AB Triple Road Train ANE Tanker Sets ° 4 x Quad Road Train Flat Top Sets ° 6 x Pocket Road Train Flat Top Set ° 7 x Block Trucks (incl 2 at Tom Price) ° 13 x Sub Contractor Vehicles ° 5 x Pocket Road Train Skel -
A Guide for HOT Lane Development FHWA
U.S. Department of Transportation Federal Highway Administration A Guide for HOT LANE DEVELOPMENT A Guide for HOT LANE DEVELOPMENT BY WITH IN PARTNERSHIP WITH U.S. Department of Transportation Federal Highway Administration PRINCIPAL AUTHORS Benjamin G. Perez, AICP PB CONSULT Gian-Claudia Sciara, AICP PARSONS BRINCKERHOFF WITH CONTRIBUTIONS FROM T. Brent Baker Stephanie MacLachlin PB CONSULT PB CONSULT Kiran Bhatt Carol C. Martsolf KT ANALYTICS PARSONS BRINCKERHOFF James S. Bourgart Hameed Merchant PARSONS BRINCKERHOFF HOUSTON METRO James R. Brown John Muscatell PARSONS BRINCKERHOFF COLORADO DEPARTMENT OF TRANSPORTATION Ginger Daniels John O’Laughlin TEXAS TRANSPORTATION INSTITUTE PARSONS BRINCKERHOFF Heather Dugan Bruce Podwal COLORADO DEPARTMENT OF TRANSPORTATION PARSONS BRINCKERHOFF Charles Fuhs Robert Poole PARSONS BRINCKERHOFF REASON PUBLIC POLICY INSTITUTE Ira J. Hirschman David Pope PB CONSULT PARSONS BRINCKERHOFF David Kaplan Al Schaufler SAN DIEGO ASSOCIATION OF GOVERNMENTS PARSONS BRINCKERHOFF Hal Kassoff Peter Samuel PARSONS BRINCKERHOFF TOLL ROADS NEWSLETTER Kim Kawada William Stockton SAN DIEGO ASSOCIATION OF GOVERNMENTS TEXAS TRANSPORTATION INSTITUTE Tim Kelly Myron Swisher HOUSTON METRO COLORADO DEPARTMENT OF TRANSPORTATION Stephen Lockwood Sally Wegmann PB CONSULT TEXAS DEPARTMENT OF TRANSPORTATION Chapter 1 Hot Lane Concept And Rationale........................................................................2 1.1 HOT lanes Defined .................................................................................................2 -
Birkenhead RO-2008-001 Final
2008 5 March Australia, South Birkenhead, Collision, Crossing Level ATSB TRANSPORT SAFETY REPORT Rail Occurrence Investigation RO-2008-001 Final Level Crossing Collision Birkenhead, South Australia 5 March 2008 ATSB TRANSPORT SAFETY REPORT Rail Occurrence Investigation RO-2008-001 Final Level Crossing Collision Birkenhead, South Australia 5 March 2008 Released in accordance with section 25 of the Transport Safety Investigation Act 2003 - i - Published by: Australian Transport Safety Bureau Postal address: PO Box 967, Civic Square ACT 2608 Office location: 62 Northbourne Avenue, Canberra City, Australian Capital Territory Telephone: 1800 020 616; from overseas + 61 2 6257 4150 Accident and incident notification: 1800 011 034 (24 hours) Facsimile: 02 6247 3117; from overseas + 61 2 6247 3117 E-mail: [email protected] Internet: www.atsb.gov.au © Commonwealth of Australia 2009. This work is copyright. In the interests of enhancing the value of the information contained in this publication you may copy, download, display, print, reproduce and distribute this material in unaltered form (retaining this notice). However, copyright in the material obtained from other agencies, private individuals or organisations, belongs to those agencies, individuals or organisations. Where you want to use their material you will need to contact them directly. Subject to the provisions of the Copyright Act 1968, you must not make any other use of the material in this publication unless you have the permission of the Australian Transport Safety Bureau. Please direct requests for further information or authorisation to: Commonwealth Copyright Administration, Copyright Law Branch Attorney-General’s Department, Robert Garran Offices, National Circuit, Barton ACT 2600 www.ag.gov.au/cca ISBN and formal report title: see ‘Document retrieval information’ on page v. -
South Bay Expressway (Sr 125 Toll Road) Fact Sheet
Transportation SOUTH BAY EXPRESSWAY (SR 125 TOLL ROAD) FACT SHEET The Project Lower Tolls Opened in 2007, South Bay Expressway (SBX) In December 2011, after a thorough due toll road is a ten-mile stretch of State Route diligence process and public review, SANDAG 125 (SR 125) that runs from Otay Mesa Road completed the acquisition of the lease to near State Route 905 to SR 54. The highway operate the toll road. To improve mobility provides quick and convenient travel choices in the South Bay, SANDAG implemented a between eastern Chula Vista, Downtown San business plan that reduced tolls by as much Customer Service Center Hours of Operation Diego, East County, Sorrento Valley, Interstate as 40 percent on June 30, 2012. Phone: Monday – Friday 8, State Route 94, Otay Mesa, and Mexico. Tolls now range from 50 cents to $2.75 for 8 a.m. – 5 p.m. On- and off-ramps are available at Birch Road, Walk-In: Monday – Friday FasTrak users and from $2 to $3.50 for cash/ 8 a.m. – 6 p.m. Olympic Parkway, Otay Lakes Road, East H credit card users. Previously, tolls were 85 (619) 661-7070 Street, and San Miguel Ranch Road. 1129 La Media Road cents to $3.85 for FasTrak users and $2.50 San Diego, CA 92154 Travelers who use South Bay Expressway have to $4 for cash/credit card users. FasTrak account several payment options. FasTrak customers management is available Also effective June 30, 2012, the minimum online at SBXthe125.com do not need to stop at toll booths; tolls monthly toll usage requirement was lowered are automatically deducted from a prepaid from $7 to $4.50 for FasTrak customers with account using a transponder mounted one transponder ($3.50 per FasTrak account inside the vehicle. -
What Are the Advantages of Roundabouts?
What is a roundabout? A roundabout is an intersection where traffic travels around a Circulatory central island in a counter- Truck Apron Roadway clockwise direction. Vehicles entering or exiting the roundabout must yield to vehicles, bicyclists, and pedestrians. Figure 1 presents the elements of a roundabout. Yield Line Splitter Island Figure 1: Elements of a Roundabout What are the advantages of roundabouts? • Less Traffic Conflict: Figure 2 compares the conflict points between a conventional intersection and a modern roundabout. The lower number of conflict points translates to less potential for accidents. • Greater safety(1): Primarily achieved by slower speeds and elimination of left turns. Design elements of the roundabouts cause drivers to reduce their speeds. • Efficient traffic flow: Up to 50% increase in traffic capacity • Reduced Pollution and fuel usage: Less stops, shorter queues and no left turn storage. • Money saved: No signal equipment to install or maintain, plus savings in electricity use. • Community benefits: Traffic calming and enhanced aesthetics by landscaping. (1) Statistics published by the U.S. Dept. of transportation, Federal Highway Administration shows roundabouts to have the following advantages over conventional intersections: • 90% reduction in fatalities • 76% reduction in injuries • 35% reduction in pedestrian accidents. Signalized Intersection Roundabout Figure 2: Conflict Point Comparison How to Use a Roundabout Driving a car • Slow down as you approach the intersection. • Yield to pedestrians and bicyclists crossing the roadway. • Watch for signs and pavement markings. • Enter the roundabout if gap in traffic is sufficient. • Drive in a counter-clockwise direction around the roundabout until you reach your exit. Do not stop or pass other vehicles.