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SIGHT DISTANCE FOR STOP-CONTROLLED INTERSECTIONS BASED ON GAP ACCEPTANCE.
| 题名： | SIGHT DISTANCE FOR STOP-CONTROLLED INTERSECTIONS BASED ON GAP ACCEPTANCE. |
| 作者： | Harwood-DW; Mason-JM Jr.; Brydia-RE |
| 关键词： | Design-speed; Field-studies; Gap-acceptance; Intersections-; Left-turns; Major-road; Minor-road; Sight-distance; Stop-signs; Stop-controlled-intersections |
| 摘要： | 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. |
| 总页数： | Transportation Research Record. 2000. (1701) pp32-41 (5 Fig., 6 Tab., 9 Ref.) |
| 报告类型： | 科技报告 |
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