MODELING PEDESTRIAN SPEED AT SIGNALIZED CROSSWALKS CONSIDERING CROSSWALK LENGTH AND PEDESTRIAN SIGNAL TIMING
MODELING PEDESTRIAN SPEED AT SIGNALIZED CROSSWALKS CONSIDERING CROSSWALK LENGTH AND PEDESTRIAN SIGNAL TIMING
复制标题
考虑人行横道长度和行人信号计时的信号人行横道上的行人速度建模
DOI：
10.2208/jscejipm.70.i_1031
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发表时间：
2014
影响因子：
--
通讯作者：
Peng Chen
中科院分区：
文献类型：
--
作者：
Xin Zhang;Hideki Nakamura;Miho Iryo;Peng Chen
量化人行横道长度和信号配时对行人步行速度的影响是合理评价信号交叉口安全性的重要前提。研究了行人绿色时间、人行横道长度和行人过街方向对信号控制人行横道行人步行速度的影响。假设行人步行速度由两个连续的半人行横道上的两个分量v 1和v 2组成。实证分析表明，人行横道越长，行人速度越高。行人步行速度随着PG的前进而增加。此外，行人速度模型PG和PF（行人闪烁绿色时间）的比较表明，行人步行速度在PF是更高的，更可变的比在PG。灵敏度分析有助于了解这些模型的行为取决于每个变量的变化。
Quantifying the effects of crosswalk length and signal timing on pedestrian walking speed is an im-portant requirement for providing a rational safety assessment at signalized intersections. This study in-vestigates the effects of pedestrian green time (PG), crosswalk length and pedestrian crossing direction on pedestrian walking speed at signalized crosswalk. It is assumed that the pedestrian walking speeds consist of two components v 1 and v 2 at two consecutive halves of crosswalk. Empirical analysis shows that the longer crosswalk tends to induce the higher walking speed. Pedestrian walking speed increases as PG proceeds. Furthermore, a comparison of pedestrian speed models for PG and PF (pedestrian flashing green time) demonstrates that pedestrian walking speeds at PF are higher and more variable than at PG. The sensitivity analysis helps understand how these models behave depending on change of each variable.