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Managing Pedestrian and Car Interactions.
| 题名： | Managing Pedestrian and Car Interactions. |
| 作者： | Daganzo, C. F.; Anderson, P. R.; Knoop, V. L. |
| 关键词： | Pedestrians, Crosswalks, Road traffic flow, Road capacity, Unsignalized streets |
| 摘要： | In urban areas and especially in inner cities, pedestrians crossing the road considerably influence the road traffic flow. For political (environmental) reasons, priority could be given to pedestrians. A larger number of crossings reduces the pedestrian load per crossing and facilitates both the pedestrian flow and the car flow; the ultimate case is a ``cross anywhere'' scenario. Earlier work shows that the road capacity decreases with the square of the pedestrian crossing time, hence a short crossing time is desired. Crosswalks can ensure pedestrians cross orthogonally, and thus quickly, and can thereby improve traffic flow. Moreover, a limited number of crosswalks is less stressful than a "cross anywhere'' scenario for a car driver since (s)he only needs to expect crossing pedestrians at dedicated crosswalks. This paper studies the effect of the distances between crosswalk and road traffic capacity. Several distances between pedestrian crossings are considered, and moreover, a non-constant inter-crosswalk spacing is considered. Overall, the closer the crosswalks, the better the flow. However, spacings closer than approximately 25-50 meters do not add much. Speed of traffic under a broad array of pedestrian crossing scenarios is given. An interpolation recipe is given to provide the speeds for situations which are not calculated. |
| 报告类型： | 科技报告 |
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