00799057

Component

https://doi.org/10.3141/1701-05

http://scholar.google.com...ydia&publication_year=2000

The current AASHTO policy for sight distance at Stop-controlled intersections is based on a model of the acceleration performance of a minor-road vehicle turning left or right onto a major road and the deceleration performance of the following major road vehicle. An alternative intersection sight distance model based on gap acceptance is developed and quantified. Field studies that were performed to determine the critical gaps appropriate for use in sight distance design are described. It is recommended that the sight distance along the major road for a passenger car at a Stop-controlled intersection should be based on a distance equal to 7.5 s of travel time at the design speed of the major road. Longer sight distances are recommended for minor-road approaches that have sufficient truck volumes to warrant consideration of a truck as the design vehicle.

This paper appears in Transportation Research Record No. 1701, Design Speed, Operating Speed, and Sight Distance Issues.

English

p. 32-41

2000

Transportation Research Record

0309066808

Figures (5) ; References (9) ; Tables (6)

Design speed; Field studies; Gap acceptance; Intersections; Left turns; Sight distance; Stop signs

Major road; Minor road; Stop-controlled intersections

Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure

TRIS, TRB, ATRI

Sep 29 2000 12:00AM

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• EVALUATION OF THE PASSING PROCESS ON TWO-LANE RURAL HIGHWAYS
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• MATHEMATICAL MODELS OF VEHICULAR SPEED ON MOUNTAIN ROADS
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• SPEED REDUCTION AS A SURROGATE FOR ACCIDENT EXPERIENCE AT HORIZONTAL CURVES ON RURAL TWO-LANE HIGHWAYS
• SPEED-PROFILE MODEL FOR A DESIGN-CONSISTENCY EVALUATION PROCEDURE IN THE UNITED STATES
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