兰州市安宁西路与银滩路交叉口现状调查分析及优化

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关键词：交叉口优化；VISSIM；交通延误；交通仿真；通行能力中图分类号： 文献标志码：A 文章编号：2095-2945（2025）31-0085-04

Abstract：ThispaperfocusesontheintersectionofWestAningRoadandYintanRoadinLanzhou，investigatingand analyzingitstraffcconditionsandexistingproblemsandproposingimprovementsthroughoptimizationdesign.Thestudybegins withfieldinvestigatiosanddataanalsistoidentifyeurrentstatusoftheintesetion，icludingtraficchanelizationdesign， signalcontrol methods，andtraffcflowcharacterisics.Theresultsshowthattheintersectionmainlyfacesproblemssuchas serioustraffcdelaysduringpeakhoursinsuficienttraveltimeforU-turnandleft-turnvehicles，andsignificantinterference fromthemixedtraffcofnon-motorvehiclesandpedestrians.Subsequently，basedonVISIMsimulationsoftwarethetraffic operationstatusoftheintersectionwasquantitativelyevaluated，andindicatorssuchasparkingtimes，delays，andmaximum queuelengthwereselectedforanalysis.Itwasfoundthatthetraffcdelaysintheleft-turnandU-tumlanesattheeast entranceweresignificantlyhigherthanthoseinotherlanes.Inordertoimprovethetraffccapacityandservicelevelof intersections，thispaperproposesoptimizationplansstartingfromaspectssuchastraffcchanelzaionimprovement，pedestrian crossingmanagementandsuroundingtraffcorganization.Byoptimizingthedesign，conflictpointscanbeefectivelyreduced， delayscanbereduced，andtraffceficiencycanbeimproved.Thisstudynotonlyprovidesscientficbasisfortraffic managementattheintersectionof WestAningRoadandYintanRoadinLanzhouCitybutalsohasimportantreferencevalue forthe optimal design of similar urban road intersections.

Keywords：intersection optimization;VISSIM；traffic delay; traffic simulation; traffic capacit

随着经济的快速发展和城市建设的推进，城市交通基础设施在我国取得了显著进展2。（剩余3439字）