Influences of Waiting Time on Driver Behaviors While Implementing In-Vehicle Traffic Light for Priority-Controlled Unsignalized Intersections

In-vehicle traffic lights that assist drivers in crossing intersections are in development; however, the availability of the in-vehicle traffic light will be limited if the waiting time of a vehicle is not considered in actual traffic conditions, especially at priority-controlled unsignalized inters...

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Bibliographic Details
Published in:Journal of advanced transportation 2017-01, Vol.2017 (2017), p.1-12
Main Authors: Nakano, Kimihiko, Kaizuka, Tsutomu, Zheng, Rencheng, Yang, Bo
Format: Article
Language:English
Subjects:
Aggressive behavior
Automobile drivers
Behavior
Driver behavior
Drivers
Driving
Driving conditions
Gap acceptance
In vehicle
Interchanges and intersections
Intersections
Queuing theory
Roads
Roads & highways
Steering
Telematics
Traffic
Traffic control
Traffic signals
Traffic signs and signals
Transportation planning
Vehicles
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Summary:In-vehicle traffic lights that assist drivers in crossing intersections are in development; however, the availability of the in-vehicle traffic light will be limited if the waiting time of a vehicle is not considered in actual traffic conditions, especially at priority-controlled unsignalized intersections that normally consist of one major and two minor roads. The present study therefore investigated the effects of the waiting time on driver behaviors to improve the in-vehicle traffic light for the priority-controlled unsignalized intersections. Gap acceptance theory that considers the waiting time was adopted in the implementation of the in-vehicle traffic light, to assist minor-road drivers in passing through the intersections by selecting appropriate major-road gaps. A driving simulator experiment involving 12 participants was performed for the minor and major roads, by applying the in-vehicle traffic light with and without the consideration of waiting time. Results demonstrate that the maximum acceleration strokes of minor-road vehicles were significantly reduced, indicating a lower possibility of aggressive driving when the in-vehicle traffic light was applied while considering the waiting time. Meanwhile, an improved steering stability was observed from the driver behaviors at the intersections, as the maximum lateral acceleration of minor-road vehicles significantly decreased when the waiting time was considered.
ISSN:0197-6729
2042-3195
DOI:10.1155/2017/7871561