文章编号： 1672-5328（2015）01-0072-08

池利兵^{1, 2}，程国柱¹，李德欢¹，吴立新³
(1.哈尔滨工业大学交通科学与工程学院，黑龙江哈尔滨150090；2.中国城市规划设计研究院，北京100037；3. 吉林建筑大学交通科学与工程学院，吉林长春130018)

摘要： 现行规范对路段行人过街信号的设置条件缺少定量分析与理论依据，为保障路段行人过街安 全，研究行人过街等待时间、行人安全度及行车延误对行人过街信号设置的影响。基于哈尔滨市某 双向6 车道主干路无信号人行横道的调查数据，分别构建行人过街等待时间与机动车流率、交通冲 突时间与行驶速度、行车延误与过街行人流率的关系模型。以45 s 作为过街行人忍受时间阈值，计 算得到设置路段行人过街信号的机动车流率条件为1200 辆·h-1；以1.3 s 作为交通冲突时间阈值，得 到对应的机动车行驶速度条件为55 km·h-1；以不同服务水平对应的行程车速为依据，给出设置路段 行人过街信号的过街行人流率条件。

关键词： 交通工程；行人过街信号；设置条件；机动车流率；行驶速度；过街行人流率

中图分类号： U491.1+7

文献标识码：A

Setting Pedestrian Mid-block Crossing Signals on Urban Roadway

Chi Libing^{1, 2}, Cheng Guozhu¹, Li Dehuan¹,Wu Lixin³
(1.School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin Heilongjiang 150090, China; 2.China Academy of Urban Planning & Design, Beijing 100037, China; 3.School of Transportation Science and Engineering, Jilin Jianzhu University, Changchun Jilin 130018, China)

Abstract： There lack quantitative analysis and theoretical basis for setting mid-block pedestrian crossing signals in existing specifications or manuals. Concerning the safety of pedestrian crossing, this paper investigates the impacts of pedestrian waiting time, degree of pedestrian safety, and vehicular delay on the settings of mid-block pedestrian crossing signals. Based on the survey data at a un-signalized mid-block pedestrian crossing on a six-lane arterial in Harbin, this paper develops a model that captures the interrelations among pedestrian waiting time and vehicular flow, traffic conflict time and driving speed, vehicular delay and pedestrian flow. Using 45 seconds as the threshold of pedestrian acceptable waiting time, this study concludes that mid-block pedestrian crossing signals should be set if vehicular flow is more than 1, 200 veh/h. Taking 1.3 seconds as the threshold of traffic conflict time, the paper finds that a driving speed at above 55 km/h warrants the setting of mid-block pedestrian crossing signals. Based on travel speeds corresponding to different levels of service, the paper develops the pedestrian flow thresholds for setting of mid-block crossing signals.

Keywords： traffic engineering; mid-block pedestrian crossing signals; setting conditions; vehicular flow; driving speed; pedestrian flow