TY - JOUR
T1 - Arterial Roadway Travel Time Reliability and the COVID-19 Pandemic
AU - Rilett, Laurence R.
AU - Tufuor, Ernest
AU - Murphy, Sean
N1 - Funding Information:
The authors would like to thank the Omaha Office of HDR for making INRIX travel time data for Lincoln, NE and Omaha, NE readily available. This research was made possible through the funding of the U.S. Department of Transportation and the Nebraska Department of Transportation [DPS-STWD-118 and DPS-STWD-118(a)], as well as the Nebraska Transportation Center. This support is gratefully acknowledged. The contents of this paper reflect the views of the authors, who are responsible for the facts and accuracy of the information presented herein and are not necessarily representative of the U.S. Department of Transportation, the Nebraska Department of Transportation, the City of Lincoln, or the City of Omaha.
Publisher Copyright:
© 2021 American Society of Civil Engineers.
PY - 2021/7/1
Y1 - 2021/7/1
N2 - 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.
AB - 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.
KW - Arterial roadway
KW - COVID-19 pandemic
KW - INRIX
KW - NPMRDS
KW - Travel time reliability
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U2 - 10.1061/JTEPBS.0000559
DO - 10.1061/JTEPBS.0000559
M3 - Article
AN - SCOPUS:85105877642
VL - 147
JO - Journal of Transportation Engineering Part A: Systems
JF - Journal of Transportation Engineering Part A: Systems
SN - 2473-2907
IS - 7
M1 - 04021034
ER -