Effectiveness of Sealed Shoulders and Audible Edge Lines in Western Australia
Objective: Sealing of road shoulders and installation of audible edge lines (also known as rumble strips or audio tactile profiled edges) are common engineering road treatments, often implemented to prevent run-off-road crashes. This quasi-experimental study evaluated the effectiveness of installing...
| Main Authors: | , , |
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| Format: | Journal Article |
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Taylor & Francis
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/12363 |
| _version_ | 1848748055534239744 |
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| author | Meuleners, Lynn Hendrie, Delia Lee, Andy |
| author_facet | Meuleners, Lynn Hendrie, Delia Lee, Andy |
| author_sort | Meuleners, Lynn |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Objective: Sealing of road shoulders and installation of audible edge lines (also known as rumble strips or audio tactile profiled edges) are common engineering road treatments, often implemented to prevent run-off-road crashes. This quasi-experimental study evaluated the effectiveness of installing sealed shoulders and/or audible edge lines on the Albany Highway in Western Australia during 2000–2004 relative to matched control sites. Methods: Reduction in crash frequency post-2004 and the economic benefits of applying these treatments to 13 sites were assessed. Results: The treatments were highly effective overall, significantly reducing all-severity crash rate by 58 percent and casualty crashes by 80 percent. The reduction in crash cost was estimated to be $51.9 million Australian dollars over the lifetime of the treated sites, with $51.4 million attributable to the decrease in casualty crashes. After accounting for treatment costs, the net cost savings to the community were estimated at $50.6 million. The benefit–cost ratio across all treatment sites was 40.3. Conclusions: The findings justified the implementation of these treatments on rural roads in terms of benefits for reduction in both crash rate and crash cost. |
| first_indexed | 2025-11-14T06:58:58Z |
| format | Journal Article |
| id | curtin-20.500.11937-12363 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:58:58Z |
| publishDate | 2011 |
| publisher | Taylor & Francis |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-123632017-09-13T16:03:15Z Effectiveness of Sealed Shoulders and Audible Edge Lines in Western Australia Meuleners, Lynn Hendrie, Delia Lee, Andy Objective: Sealing of road shoulders and installation of audible edge lines (also known as rumble strips or audio tactile profiled edges) are common engineering road treatments, often implemented to prevent run-off-road crashes. This quasi-experimental study evaluated the effectiveness of installing sealed shoulders and/or audible edge lines on the Albany Highway in Western Australia during 2000–2004 relative to matched control sites. Methods: Reduction in crash frequency post-2004 and the economic benefits of applying these treatments to 13 sites were assessed. Results: The treatments were highly effective overall, significantly reducing all-severity crash rate by 58 percent and casualty crashes by 80 percent. The reduction in crash cost was estimated to be $51.9 million Australian dollars over the lifetime of the treated sites, with $51.4 million attributable to the decrease in casualty crashes. After accounting for treatment costs, the net cost savings to the community were estimated at $50.6 million. The benefit–cost ratio across all treatment sites was 40.3. Conclusions: The findings justified the implementation of these treatments on rural roads in terms of benefits for reduction in both crash rate and crash cost. 2011 Journal Article http://hdl.handle.net/20.500.11937/12363 10.1080/15389588.2010.537001 Taylor & Francis restricted |
| spellingShingle | Meuleners, Lynn Hendrie, Delia Lee, Andy Effectiveness of Sealed Shoulders and Audible Edge Lines in Western Australia |
| title | Effectiveness of Sealed Shoulders and Audible Edge Lines in Western Australia |
| title_full | Effectiveness of Sealed Shoulders and Audible Edge Lines in Western Australia |
| title_fullStr | Effectiveness of Sealed Shoulders and Audible Edge Lines in Western Australia |
| title_full_unstemmed | Effectiveness of Sealed Shoulders and Audible Edge Lines in Western Australia |
| title_short | Effectiveness of Sealed Shoulders and Audible Edge Lines in Western Australia |
| title_sort | effectiveness of sealed shoulders and audible edge lines in western australia |
| url | http://hdl.handle.net/20.500.11937/12363 |