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原文传递 Arterial Roadway Travel Time Reliability and the COVID-19 Pandemic

题名：	Arterial Roadway Travel Time Reliability and the COVID-19 Pandemic
正文语种：	eng
作者：	Rilett, Laurence R.;Tufuor, Ernest;Murphy, Sean
作者单位：	Univ Nebraska Nebraska Transportat Ctr Keith W Klaasmeyer Chair Engn 262D Prem S Paul Res Ctr Whittier Sch Lincoln NE 68583 USA;Univ Nebraska Nebraska Transportat Ctr 262E Prem S Paul Res Ctr Whittier Sch Lincoln NE 68583 USA;Univ Nebraska Nebraska Transportat Ctr 262E Prem S Paul Res Ctr Whittier Sch Lincoln NE 68583 USA\|HDR Inc Traff EIT 1917 S 67th St Omaha NE 68106 USA
关键词：	Travel time reliability;COVID-19 pandemic;Arterial roadway;INRIX;NPMRDS
摘要：	This paper evaluated the effect of the COVID-19 preventive orders on arterial roadway travel time reliability (TTR). A comparative analysis was conducted to examine average travel time distributions (TTD), and their associated TTR metrics, before and during the COVID-19 pandemic. Travel time data for four urban arterial corridors in Nebraska, disaggregated by peak period and direction, were analyzed. It was found that in 2020, the average TTD mean and standard deviation values for all 16 scenarios were reduced by an average of 14.0% and 43.4%, respectively. The travel time index, the planning time index, the level of travel time reliability (LOTTR), and the buffer index metrics associated with these TTDs were reduced, on average, by 14.0%, 19.7%, 3.5%, and 35.0%, respectively. In other words, whether the test corridors were more reliable during the pandemic was a function of which TTR metric was used. The paper concludes by arguing for a fundamental change in how arterial TTR is measured and reported to different user groups.
出版年：	2021
期刊名称：	Journal of Transportation Engineering
卷：	147
期：	7