2020 journal article
Crash Classification by Congestion Type for Highways
APPLIED SCIENCES-BASEL, 10(7).
author keywords: collision classification; recurrent and non-recurrent congestion; link speed data; traffic safety; advanced traffic management system
TL;DR:
An easily implementable methodology that can classify all reported crashes in terms of the operational conditions under which each crash occurred is presented, which makes use of a novel scheme for distinguishing between recurrent and non-recurrent congestion.
(via Semantic Scholar)
open access via www.mdpi.com (publisher PDF)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: July 6, 2020
Effective management of highway networks requires a thorough understanding of the conditions under which vehicular crashes occur. Such an understanding can and should inform related operational and resource allocation decisions. This paper presents an easily implementable methodology that can classify all reported crashes in terms of the operational conditions under which each crash occurred. The classification methodology uses link-based speed data. Unlike previous secondary collision identification schemes, it neither requires an a priori identification of the precipitating incident nor definition of the precipitating incident’s impact area. To accomplish this objective, the methodology makes use of a novel scheme for distinguishing between recurrent and non-recurrent congestion. A 500-crash case study was performed using a 274 km section of the I-40 in North Carolina. Twelve percent of the case study crashes were classified as occurring in non-recurrent congestion. Thirty-seven percent of the crashes in non-recurrent congestion classified were identified within unreported primary incidents or crashes influence area. The remainder was classified as primary crashes occurring in either uncongested conditions (84%) or recurrent congestion (4%). The methodology can be implemented in any advanced traffic management system for which crash time and link location are available along with corresponding archived link speed data are available.