交通科技
交通科技
교통과기
TRANSPORTATION SCIENCE & TECHNOLOGY
2015年
4期
139-142,143
,共5页
交通工程%可行性%供需分析%交织区%通行能力%交织车道
交通工程%可行性%供需分析%交織區%通行能力%交織車道
교통공정%가행성%공수분석%교직구%통행능력%교직차도
traffic engineering%feasibility%supply and demand analysis%weaving section%capacity%weaving lanes
针对短交织区交通拥堵问题，在分析车道的增设方式及其作用的基础上，通过交通供需分析确定交织区拥堵的矛盾所在。以交织车流供需矛盾为研究重点，从微观的角度对交织车辆的换道操作进行剖析，以交织车辆最短换道距离为依据，推算出可增设分流车道的交织区最短长度（26 m）。采用 VISSIM 仿真，确定增设分流车道后交织车道的通行能力，并将其与交织需求进行对比，来判定可行性。
針對短交織區交通擁堵問題，在分析車道的增設方式及其作用的基礎上，通過交通供需分析確定交織區擁堵的矛盾所在。以交織車流供需矛盾為研究重點，從微觀的角度對交織車輛的換道操作進行剖析，以交織車輛最短換道距離為依據，推算齣可增設分流車道的交織區最短長度（26 m）。採用 VISSIM 倣真，確定增設分流車道後交織車道的通行能力，併將其與交織需求進行對比，來判定可行性。
침대단교직구교통옹도문제，재분석차도적증설방식급기작용적기출상，통과교통공수분석학정교직구옹도적모순소재。이교직차류공수모순위연구중점，종미관적각도대교직차량적환도조작진행부석，이교직차량최단환도거리위의거，추산출가증설분류차도적교직구최단장도（26 m）。채용 VISSIM 방진，학정증설분류차도후교직차도적통행능력，병장기여교직수구진행대비，래판정가행성。
For the problem of traffic jams in the short-weaving section,on the basis of discussing the styles of adding lanes and the functions of the lanes,the causes of traffic jam has been determined by supply and demand analysis.With a focus on the imbalance between supply and demand of weaving traffic flow,the lane-changing behavior has been analyzed thoroughly from the microscopic point of view.According to the shortest distance for weaving vehicles to change lanes,the shortest length (26m)of weaving section which is needed for adding diverging lanes has been calculated.The capacity of weaving lanes with diverging lanes has been determined by simulation with VISSIM software, which has been taken to compare with the weaving traffic demand to verify the feasibility.
