01006671

Component

https://doi.org/10.3141/1910-02

http://scholar.google.com...arco&publication_year=2005

Intersection collision warning systems can potentially reduce the number of collisions and associated losses. A critical design aspect of these systems is the selection of warning criteria, which represent a set of conditions and parameters under which the decision and the timing to issue warnings are determined. Proper warning criteria allow the generation of timely signals for drivers while minimizing false and nuisance alarms. The paper describes the development of a methodology to observe and analyze the selection of time gaps exhibited by driver behaviors in a real-world setting. The data collection procedures and analysis techniques are explained for left-turn across-path-opposite-direction scenarios, which constitute more than a quarter of crossing path crashes at intersections. Exemplar data sets from an urban, signalized intersection are used to illustrate methods of deriving time gap acceptance behaviors. The extracted information can serve as the basis for selecting gap acceptance thresholds in warning criteria, and the demonstrated methodology can be applied in the development of intersection collision warning systems.

01006661

English

pp 10-19

2005

Transportation Research Record: Journal of the Transportation Research Board

030909383X

Print

Figures (7) ; References (15) ; Tables (1)

Behavior; Data collection; Gap acceptance; Left turns; Signalized intersections

Collision warning systems; Time gaps

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Oct 26 2005 10:30AM

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