Estimating Safety Benefits of Shoulder Rumble Strips on Two-Lane Rural Highways in Minnesota

Autor:	Rushi B. Patel, Forrest M. Council, Michael S. Griffith
Rok vydání:	2007
Předmět:	Transport engineering Bayes' theorem Geography Mechanical Engineering Rumble strip Observational study Rural roads Rumble Before and after study Rural area Civil and Structural Engineering Empirical Bayes method
Zdroj:	Transportation Research Record: Journal of the Transportation Research Board. 2019:205-211
ISSN:	2169-4052 0361-1981
DOI:	10.3141/2019-24
Popis:	Approximately 40% of all 2004 fatal crashes were single-vehicle, run-off-the-road (SVROR) crashes. The problem was even more significant on two-lane rural roads, where shoulder rumble strips were an important treatment in the prevention of these crashes and have proved effective on freeways. However, no studies have evaluated the effectiveness of shoulder rumble strips in reducing SVROR crashes on two-lane rural highways. An empirical Bayes before-and-after study was performed to evaluate the safety-effectiveness of milled-in continuous shoulder rumble strips on two-lane rural highways in Minnesota. The treatment was installed at 23 treatment sites (183 mi). This study reports a 13% reduction in all SVROR crashes and an 18% reduction in injury-producing SVROR crashes after installation of this treatment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0d84df3b1259c94b225c740dc2648ade https://doi.org/10.3141/2019-24 Zobrazit plný text záznamu