In-depth analysis of drivers' merging behavior and rear-end crash risks in work zone merging areas

Weng, J; Xue, S; Yang, Y; Yan, X; Qu, X

In-depth analysis of drivers' merging behavior and rear-end crash risks in work zone merging areas

Weng, J Xue, S Yang, Y Yan, X Qu, X

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Publication Type:: Journal Article
Citation:: Accident Analysis and Prevention, 2015, 77 pp. 51 - 61
Issue Date:: 2015-01-01

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Field	Value	Language
dc.contributor.author	Weng, J	en_US
dc.contributor.author	Xue, S	en_US
dc.contributor.author	Yang, Y	en_US
dc.contributor.author	Yan, X	en_US
dc.contributor.author	Qu, X https://orcid.org/0000-0003-0973-3756	en_US
dc.date.available	2015-02-04	en_US
dc.date.issued	2015-01-01	en_US
dc.identifier.citation	Accident Analysis and Prevention, 2015, 77 pp. 51 - 61	en_US
dc.identifier.issn	0001-4575	en_US
dc.identifier.uri	http://hdl.handle.net/10453/119165
dc.description.abstract	© 2015 Elsevier Ltd. All rights reserved. This study investigates the drivers' merging behavior and the rear-end crash risk in work zone merging areas during the entire merging implementation period from the time of starting a merging maneuver to that of completing the maneuver. With the merging traffic data from a work zone site in Singapore, a mixed probit model is developed to describe the merging behavior, and two surrogate safety measures including the time to collision (TTC) and deceleration rate to avoid the crash (DRAC) are adopted to compute the rear-end crash risk between the merging vehicle and its neighboring vehicles. Results show that the merging vehicle has a bigger probability of completing a merging maneuver quickly under one of the following situations: (i) the merging vehicle moves relatively fast; (ii) the merging lead vehicle is a heavy vehicle; and (iii) there is a sizable gap in the adjacent through lane. Results indicate that the rear-end crash risk does not monotonically increase as the merging vehicle speed increases. The merging vehicle's rear-end crash risk is also affected by the vehicle type. There is a biggest increment of rear-end crash risk if the merging lead vehicle belongs to a heavy vehicle. Although the reduced remaining distance to work zone could urge the merging vehicle to complete a merging maneuver quickly, it might lead to an increased rear-end crash risk. Interestingly, it is found that the rear-end crash risk could be generally increased over the elapsed time after the merging maneuver being triggered.	en_US
dc.relation.ispartof	Accident Analysis and Prevention	en_US
dc.relation.isbasedon	10.1016/j.aap.2015.02.002	en_US
dc.subject.classification	Logistics & Transportation	en_US
dc.subject.mesh	Humans	en_US
dc.subject.mesh	Probability	en_US
dc.subject.mesh	Risk	en_US
dc.subject.mesh	Safety	en_US
dc.subject.mesh	Accidents, Traffic	en_US
dc.subject.mesh	Deceleration	en_US
dc.subject.mesh	Models, Theoretical	en_US
dc.subject.mesh	Automobile Driving	en_US
dc.subject.mesh	Workplace	en_US
dc.subject.mesh	Singapore	en_US
dc.title	In-depth analysis of drivers' merging behavior and rear-end crash risks in work zone merging areas	en_US
dc.type	Journal Article
utslib.citation.volume	77	en_US
utslib.for	1117 Public Health and Health Services	en_US
utslib.for	090507 Transport Engineering	en_US
utslib.for	1507 Transportation and Freight Services	en_US
utslib.for	1701 Psychology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
pubs.organisational-group	/University of Technology Sydney/Strength - CRIN - Realtime Information Networks
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	77	en_US

Abstract:

© 2015 Elsevier Ltd. All rights reserved. This study investigates the drivers' merging behavior and the rear-end crash risk in work zone merging areas during the entire merging implementation period from the time of starting a merging maneuver to that of completing the maneuver. With the merging traffic data from a work zone site in Singapore, a mixed probit model is developed to describe the merging behavior, and two surrogate safety measures including the time to collision (TTC) and deceleration rate to avoid the crash (DRAC) are adopted to compute the rear-end crash risk between the merging vehicle and its neighboring vehicles. Results show that the merging vehicle has a bigger probability of completing a merging maneuver quickly under one of the following situations: (i) the merging vehicle moves relatively fast; (ii) the merging lead vehicle is a heavy vehicle; and (iii) there is a sizable gap in the adjacent through lane. Results indicate that the rear-end crash risk does not monotonically increase as the merging vehicle speed increases. The merging vehicle's rear-end crash risk is also affected by the vehicle type. There is a biggest increment of rear-end crash risk if the merging lead vehicle belongs to a heavy vehicle. Although the reduced remaining distance to work zone could urge the merging vehicle to complete a merging maneuver quickly, it might lead to an increased rear-end crash risk. Interestingly, it is found that the rear-end crash risk could be generally increased over the elapsed time after the merging maneuver being triggered.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/119165