交通运输系统工程与信息
交通運輸繫統工程與信息
교통운수계통공정여신식
JOURNAL OF COMMUNICATION AND TRANSPORTATION SYSTEMS ENGINEERING AND INFORMATION
2014年
4期
59-65
,共7页
交通工程%行人流仿真%格子气模型%信号控制%行人过街%行人延误
交通工程%行人流倣真%格子氣模型%信號控製%行人過街%行人延誤
교통공정%행인류방진%격자기모형%신호공제%행인과가%행인연오
traffic engineering%pedestrian flow simulation%lattice gas model%signal control%pedestrian crossing%pedestrian delay
以格子气模型为基础，既考虑对向行人的干扰因素，同时考虑了本向行人由于速度差异造成的影响，改进了格子气模型，结合信号控制有倒计时人行横道行人过街特性，提出了新的行人过街格子气仿真模型，并将其编成仿真软件。用该软件对不同快中慢行人比、不同对向行人比、不同规格人行横道的行人过街进行了仿真。结果表明，慢的行人会增加行人总体延误，并且行人到达率越大，速度慢的行人影响越大；行人到达率较小时，对向行人比差距越大延误越小，当行人到达率超过一定值时，对向行人比差距越大延误反而越大；人行横道宽度越宽，行人延误越小，人行横道越长，行人延误增加越明显。在其他因素相同时，改变行人相位时间，在一定范围内随时间的增加，延误降低明显，此后增加行人相位时间对降低延误影响不大。
以格子氣模型為基礎，既攷慮對嚮行人的榦擾因素，同時攷慮瞭本嚮行人由于速度差異造成的影響，改進瞭格子氣模型，結閤信號控製有倒計時人行橫道行人過街特性，提齣瞭新的行人過街格子氣倣真模型，併將其編成倣真軟件。用該軟件對不同快中慢行人比、不同對嚮行人比、不同規格人行橫道的行人過街進行瞭倣真。結果錶明，慢的行人會增加行人總體延誤，併且行人到達率越大，速度慢的行人影響越大；行人到達率較小時，對嚮行人比差距越大延誤越小，噹行人到達率超過一定值時，對嚮行人比差距越大延誤反而越大；人行橫道寬度越寬，行人延誤越小，人行橫道越長，行人延誤增加越明顯。在其他因素相同時，改變行人相位時間，在一定範圍內隨時間的增加，延誤降低明顯，此後增加行人相位時間對降低延誤影響不大。
이격자기모형위기출，기고필대향행인적간우인소，동시고필료본향행인유우속도차이조성적영향，개진료격자기모형，결합신호공제유도계시인행횡도행인과가특성，제출료신적행인과가격자기방진모형，병장기편성방진연건。용해연건대불동쾌중만행인비、불동대향행인비、불동규격인행횡도적행인과가진행료방진。결과표명，만적행인회증가행인총체연오，병차행인도체솔월대，속도만적행인영향월대；행인도체솔교소시，대향행인비차거월대연오월소，당행인도체솔초과일정치시，대향행인비차거월대연오반이월대；인행횡도관도월관，행인연오월소，인행횡도월장，행인연오증가월명현。재기타인소상동시，개변행인상위시간，재일정범위내수시간적증가，연오강저명현，차후증가행인상위시간대강저연오영향불대。
Based on the lattice gas model, this paper improved the lattice gas model considering both the in-terference factors of opposing pedestrians and the impact of synclastic pedestrian due to different speed. It proposed a lattice gas simulation model of pedestrian crossing and compiled simulation software, combining with pedestrian crossing characteristics at countdown signalised crosswalk. The study carried out the pedestri-an crossing simulation at different speed pedestrian ratio, different bi-direction pedestrian ratio and different specifications crosswalks by the simulation software. The results indicate that slow pedestrians will increase the overall delay of pedestrians and the pedestrian arrival rate higher, the slow pedestrian impact greater. When pedestrian arrival rate is low, the greater the gap between bi-direction pedestrian, the smaller the delay is. When the pedestrian arrival rate exceeds a certain value, the greater the gap between bi-direction pedestri-an, the greater the delay is. The wider the crosswalk, the smaller pedestrian delay is. And the longer the cross-walk, pedestrian delay increased significantly. When other factors are the same, changing the pedestrian phase, delay reduced significantly with the increase of time in a certain range. And over this range increasing pedestrian phase time has little effect on delay.
