@article{ref1,
title="Safety effectiveness of the road diet treatment in Rhode Island",
journal="Transportation research record",
year="2022",
author="Zhou, Yuying and Himes, Scott and Le, Thanh and Gooch, Jeff and Northup, Kayla and Pavao, Peter",
volume="2676",
number="7",
pages="24-31",
abstract="A road diet is a low-cost countermeasure which typically involves converting an existing four-lane undivided roadway to a three-lane roadway, reducing the section to two through lanes and a center two-way left-turn lane. The objective of this evaluation was to estimate the safety effectiveness of road diets by developing a crash modification factor (CMF) specific to the U.S. state of Rhode Island. To account for potential selection bias and regression-to-the-mean, an empirical Bayes before-after analysis was conducted, using reference groups of untreated four-lane undivided roadways with similar characteristics to the treated sites. <br><br>RESULTS indicated a 29% decrease (CMF = 0.71) in total crashes and a 37% reduction in fatal and injury crashes (CMF = 0.63). The expected results of the evaluation will help Rhode Island Department of Transportation to determine a statewide direction for implementation of the countermeasure.<p /> <p>Language: en</p>",
language="en",
issn="0361-1981",
doi="10.1177/03611981221076433",
url="http://dx.doi.org/10.1177/03611981221076433"
}