01518263

Component

Several research efforts attempted to address dilemma zone (DZ) issues to improve safety at high speed signalized intersections. Some efforts focused on modeling driving behavior in DZ, while others focused on the development of DZ protection algorithms. This research implements a driver simulation experimental design to collect multiple driver characteristics and ultimate decisions within the DZ. The rationale behind this study is that: (1) if driver’s stopping decision can be predicted within the DZ (based on time to intersection (TTI), vehicle speed, acceleration, etc.) then the DZ-protection algorithm can use this information to make better phase control decision, and (2) if the driver’s stopping decision can be predicted early enough during the yellow interval, then all-red extension can be applied to address drivers that will run the red light. Canonical discriminant analysis was used to develop highly accurate prediction function for drivers stopping decisions. The results suggests that it is better to predict the driver’s stopping decision after the onset of yellow, and using all-red extension to eliminate the potential of right-angle crashes.

This paper was sponsored by TRB committee AHB25 Traffic Signal Systems.

01503729

14-5439

English

0000-0002-7314-2689

12p

2014

Transportation Research Board 93rd Annual Meeting

Digital/other

Figures; Photos; References; Tables

Decision making; Dilemma zone; Drivers; Driving simulators; Signalized intersections; Stopping

Highways; Operations and Traffic Management; I73: Traffic Control

Transportation Research Board Annual Meeting 2014 Paper #14-5439

TRIS, TRB, ATRI

Jan 27 2014 3:54PM