Development of Strategies for Improving Traffic Safety and Operations in Winter

制定改善冬季交通安全和运营的策略

• 批准号: RGPIN-2016-05984
• 负责人: Mehran, Babak
• 金额: $ 1.75万
• 依托单位: University of Regina
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=636272
• 关键词: Development; Strategies; Improving; Traffic; Safety

Winter driving can be very challenging due to slippery roads and reduced visibility caused by falling and/or blowing snow. Due to reduced road surface friction and limited visibility, drivers are generally reluctant to use the desired acceleration and/or breaking power to react to traffic events. It is also common that pavement markings are completely covered by packed snow, and the effective lane width or the number of available lanes for moving traffic is reduced due to accumulation of snow caused by snow plow operations. These particular conditions suggest significant variations in physical characteristics of road network and driver behavior in winter. A clear understanding of such variations and their influence on traffic flow characteristics and safety are very important for highway agencies to plan for safe, efficient, and effective traffic management policies.

冬季驾驶是非常具有挑战性的，因为路面湿滑，能见度下降和/或吹雪。由于路面摩擦减少和能见度有限，驾驶员通常不愿意使用所需的加速和/或刹车功率来应对交通事件。路面标志完全被积雪覆盖的情况也很常见，由于扫雪机作业造成的积雪堆积，有效车道宽度或可供移动交通使用的车道数量减少。这些特殊情况表明，冬季道路网络的物理特征和驾驶员行为发生了显著变化。清楚地了解这些变化及其对交通流特征和安全的影响，对于公路管理机构制定安全、高效和有效的交通管理政策非常重要。