Reliability-Based Safety Assessment of Mixed Vehicular Traffic Under the Influence of Time-of-Day

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Reliability-Based Safety Assessment of Mixed Vehicular Traffic Under the Influence of Time-of-Day

Basu, Sujata / Datta, Apratim / Mondal, Sabyasachi / Saha, Pritam

This paper investigates the influences of time-of-day on crash risks of highways under mixed traffic situations using field data. The idea behind selecting study sites was identifying a highway section in a way such that one part of it is two-lane and the remaining part is of multi-lane status. The analytical framework of the research considers both, historical crash data and also, traffic data of the sections at four time segments: morning, midday, evening and night-time. Field studies by way of videotaping road traffic ensured a reasonable amount of accuracy in data pertaining to speed and time gap. Reliability-based assessment elucidates that on the multi-lane section, the predominant crash type is ‘rear-end’ whereas it is ‘head-on’ on two-lane sections. On multi-lane sections, frequencies of such incident are observed to increase during night-time due to drivers’ inability to assess gap; this is attributable to glare effects of headlights and also, high speed of traffic. Reliability of ‘head-on’ type of incidents on two-lane sections is found to be quite low, about 0.19–0.31, irrespective of time-of-day. However, the conservative attitude that part of drivers exhibits during night-time due to the matter of visibility reduces frequencies of such incidents.

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Document information

Title :

Reliability-Based Safety Assessment of Mixed Vehicular Traffic Under the Influence of Time-of-Day

Additional title:

Lect. Notes in Networks, Syst.

Contributors:

Kabashkin, Igor (editor) / Yatskiv, Irina (editor) / Prentkovskis, Olegas (editor) / Basu, Sujata (author) / Datta, Apratim (author) / Mondal, Sabyasachi (author) / Saha, Pritam (author)

Conference:

International Conference on Reliability and Statistics in Transportation and Communication ; 2019 ; Riga, Latvia October 16, 2019 - October 19, 2019

Published in:

Reliability and Statistics in Transportation and Communication ; Chapter : 20 ; 197-210

Lecture Notes in Networks and Systems ; 117

Publication date :

2020-03-29

Size :

14 pages

ISBN :

978-3-030-44610-9 , 978-3-030-44609-3

ISSN :