Limestone Coast Regional Road Assessment September 2019 Prepared by Date
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Limestone Coast Regional Road Assessment September 2019 Prepared By Date Matthew Vertudaches 11/9/19 Traffic Engineer 08 8202 4703 [email protected] Anna Crump Policy & Research Analyst 08 8202 4725 [email protected] Joshua Leong Traffic and Road Safety Officer 08 8202 4743 [email protected] Approved By Date Charles Mountain 11/9/19 Senior Manager Road Safety 08 8202 4568 [email protected] Revision History Revision Date Author/s Reviewed/Approved By Comment V1.0 16/08/19 MV/AC/JL CM/MV/AC/JL Draft for comment. V1.1 10/9/19 MV/AC/JL CM Final draft for approval. V1.2 11/9/19 MV/AC/JL CM Final version. This report has been prepared by Royal Automobile Association of South Australia Incorporated (RAA) as at September 10 2019. By receiving this Report you acknowledge the following: . RAA are not responsible for any errors in or omissions from this Report, whether arising out of negligence or otherwise. RAA make no representation or warranty, express or implied that this Report is accurate or is sufficient and appropriate for your purposes or contains all information that you may require. You must not rely on the information contained in this Report and RAA is not responsible to you or anyone else for any loss suffered or incurred if you rely on the Report. i Executive Summary RAA’s Road Safety Team periodically . A demand for shared paths to provide evaluates the South Australian regional safer cycling and walking between road network. This assessment of the townships Limestone Coast region reviews the road . A lack of general maintenance on network within seven Limestone Coast state maintained roads throughout the councils, namely City of Mt Gambier, DC of region Grant, DC of Robe, Kingston DC, The Road Safety team undertook seven Naracoorte Lucindale Council, Tatiara DC days of traffic and road assessments and Wattle Range Council. The selection of covering a distance of approximately three roads and locations to investigate is largely and a half thousand kilometres. These guided by the foremost concerns of RAA traffic and road assessments took place members and regional stakeholders; late in March 2019. however, it also considers the concerns of traffic volumes and an anlysis of crash As a result of our investigations and data. community feedback, the RAA Road Safety Team have identified some key areas of RAA consulted the community through an improvement and further investigation that extensive survey of Limestone Coast are required in the Limestone Coast members that was also open for public Region including: comment. The Road Safety Team met with key stakeholders across the region whilst . Staged duplication of the Dukes undertaking on-site investigations of the Highway between Tailem Bend and road network. This included meetings with the Victorian border. representatives from five of the seven . Upgrades to Riddoch Highway councils, the Limestone Coast Local including additional overtaking lanes, Government Association (LCLGA), hazard removal and intersection Primary Industries and Regions SA upgrades whilst recognising this vital (PIRSA) and Regional Development piece of infrastructure should be part Australia (RDA). The main topics of of the National Highway Network. discussion in these meetings centred . Greater investment into shoulder around the primary concerns raised in the sealing programs across the region. community survey, as well as other . A need for investment into roadside transport and mobility funding issues RAA hazard removal or protection across were aware of. the region. Safety upgrades to four roads that had During community consultation, the key speed limits reduced to 100 km/h in mobility issues identified included: 2017, with a subsequent speed limit . Concerns regarding the safety of review. interactions with large freight . Substantial investment into the vehicles on narrow regional highways. Princess Highway corridor to improve safety and efficiency. ii Notes Crash Data List of Abbreviations Unless otherwise specified, all crash data discussed in this report refers to casualty AADT crash data sourced from DPTI between the Average Annual Daily Traffic years 2013 and 2017 inclusive. For the ATLM purposes of this report, a casualty crash is defined as any crash that results in minor Audio Tactile Line Marking injuries, serious injuries or fatality. Crashes CAM resulting in only property damage have Chevron Alignment Marker been omitted from the broader analysis, however they may be reviewed in local CMG areas when required for the purposes of City of Mt Gambier Council individual investigations. DCG Not all crashes within the crash database are geocoded. Crash information shown on District Council of Grant maps will only show geocoded crash data. DCR Therefore, crashes without location data District Council of Robe will not be included in the visual analysis. Non-geocoded crashes only make up a DIRDC very small portion of all crashes. Department of Infrastructure, Regional Development and Cities Traffic Volumes DPTI Department of Planning Transport and Current estimated traffic volumes (AADT) Infrastructure quoted on state maintained roads in this report have been sourced through Data SA KDC and these values generally refer to DPTI Kingston District Council surveys conducted between 2014 and PBS 2017. The 2007 AADT values quoted Performance Based Standards throughout this report refer to DPTI rural traffic volume estimate maps released in NLC 2007. Naracoorte Lucindale Council RRPM Retroreflective Raised Pavement Marker TDC Tatiara District Council WRC Wattle Range Council iii Contents Executive Summary ...............................................................................................................ii Notes .................................................................................................................................... iii Contents ............................................................................................................................... iv Background ........................................................................................................................... 1 Recommendations ................................................................................................................ 3 Full list of recommendations .............................................................................................. 4 Discussion and Survey Analysis ......................................................................................... 10 Member Sampling Frame ................................................................................................ 10 The Region ...................................................................................................................... 10 Mobility Profile ................................................................................................................. 11 Road Maintenance .......................................................................................................... 13 Unsealed Roads .............................................................................................................. 15 Local vs Tourist Crashes ................................................................................................. 16 Freight ............................................................................................................................. 16 Road Safety .................................................................................................................... 17 Speed Zones ................................................................................................................... 21 Tourism ........................................................................................................................... 22 Cycling ............................................................................................................................ 23 Walking / Pedestrians ...................................................................................................... 25 Community Transport ...................................................................................................... 26 Taxi / app-based ride-sharing .......................................................................................... 28 Crash Statistics ................................................................................................................... 29 2013-2017 Casualty Crash Analysis ................................................................................ 29 Local vs Visitor Involvement in Crashes .......................................................................... 33 Site Investigation Details and Recommendations ................................................................ 35 General and Common Issues .......................................................................................... 35 Narrow Bridges ............................................................................................................ 35 Speed Limit Reductions from 110 km/h to 100 km/h .................................................... 35 Hazardous roadside vegetation .................................................................................... 36 Dukes Highway ............................................................................................................... 37 Riddoch Highway ............................................................................................................ 43 Princes