【摘要】 在我国城市交叉口,大量行人与机动车的冲突导致了交叉口运行效率的下降,解决冲突问题是改善交叉口运行的一个重要方面。本文从信号交叉口处行人和机动车的冲突类型入手,利用Logit模型来描述行人选择间隙的行为。利用Track系统采集数据,标定车头时距、行人等待时间以及行人数量对行人选择间隙行为的影响系数。最后,通过对模型的检验和验证,证明该模型具有较好拟合度和预测精度。更多还原

【Abstract】 The　conflict　between　crowed　pedestrians　and　vehicles　is　a　typical　condition　at　urban　intersections　in　China,which　decrease　the　capacity　of　intersections　seriously.This　paper　summarized　3　types　of　conflict　between　vehicles　and　pedestrians.A　binary　Logit　approach　was　selected　to　model　pedestrian　gap　acceptance　behaviors.Using　Track which　is　a　video　software　for　collecting　traffic　flow　data,the　typical　intersection　was　observed.Based　on　the　survey　three　important　parameters　influencing　the　pedestrian　gap　acceptance:headway　of　vehicles,waiting　time,number　of　waiting　pedestrians,the　pedestrian　gap　acceptance　model　was　calibrated　and　validated.This　model　can　predict　the　probability　of　gap　acceptance.From　the　validation,the　model　is　proved　to　be　fit　quite　well　with　good　precision.This　strengthened　the　theoretic　base　for　improving　operation　at　signalized　intersection　in　China.更多还原