00730267

Component

https://doi.org/10.3141/1538-08

http://scholar.google.com...Lord&publication_year=1996

The interaction between pedestrians and left-turning vehicles at signalized intersections are examined using the traffic conflict technique. Paramount was a comparison of the safety of left turns at two types of intersections: T-intersections and X-intersections (cross-intersections). Previous research has indicated that T-intersections are more dangerous to pedestrians. In preparation for the comparison several traffic conflict definitions and their applications to pedestrians were evaluated. Use of a laptop computer for data collection was tested. Eight sites taken from intersections in Hamilton, Ontario, Canada, were selected. A conflict recording methodology was developed for T-intersections and X-intersections that consisted of recording data at various times along the paths of pedestrians and left-turning vehicles, and recording traffic conflicts. Two computer programs were written for the data collection process: one for vehicles and one for pedestrians. Several statistical tests to relate traffic conflicts and the expected number of accidents were performed. These tests indicate that a positive correlation between traffic conflicts and expected number of accidents exists; they also suggest that T-intersections have a higher traffic conflict rate than X-intersections.

This paper appears in Transportation Research Record No. 1538, Pedestrian and Bicycle Research.

English

p. 61-67

1996

Transportation Research Record

0309059097

Figures (4) ; References (25) ; Tables (7)

Computer programs; Data collection; Laptop computers; Left turns; Methodology; Microcomputers; Pedestrian vehicle interface; Signalized intersections; Statistical analysis; T intersections; Traffic conflicts

Data and Information Technology; Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control; I80: Accident Studies

TRIS, TRB

Dec 18 1997 12:00AM

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