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VoronoiMethodforMeasuringPedestrianDensityFANGQilu1,ZHOUJibiao1,LIYu1,GEYonggang1(1.NingboUniversityofTechnology,Ningbo,Zhejiang,315211,China;2.TrafficPoliceBureauofNingboCity,Ningbo,Zhejiang,315040,China)Abstracts:Density,oneofpedestriantrafficcharacteristics,isanimportantparameterwhoseaccuratecalculationisvitalfortheconstructionofpedestrianfacilities,trafficfloworganizationandpedestriansafetymanagement.Thepaper,withpassagefacilitiesintheteachingbuildingsontheuniversitycampusastheresearchobject,designsthedataacquisitiontestofthepedestriansandproposesamethodtomeasurethepedestriandensitybasedontheVoronoimethod.Themethod,basedontheMapinfosoftwarefor1frames/secondofgraphics,processestheTysonpolygonsegmentation,recordstheareaofeachTysonpolygonanddeterminestheTysonpolygonfeaturesforpedestrianuseateachmoment.Finally,thecalculationofdifferentdensitiesinthecaseofSPSSsoftwareisappliedforthesinglefactorvarianceanalysisandTtest.TheresultsshowthatitisfeasibletocalculatethepedestriandensitybasedontheVoronoimethod;Inpedestriandensitylessthan1.2p/m2,theDvalgorithmbasedontheVoronoimethodisobviouslysuperiortoDsandDv’algorithm;Whenthepedestriandensityexceedsorisequalto1.2p/m2,thereisnoobviousdifferencebetweenDvandDv’orDs.Keywords:trafficengineering,pedestriandensity,Voronoimethod,SPSSanalysis,Mapinfoprocessing:2015-11-15:2016-05-05:(1986-),,,,,,E-mail:zhoujb2014@nbut.edu.cn。:(15NDJC078YB);(2016C33256);(2015A610298)。1,1,1,2(1.,315211;2.,,315040):,、。,,。Mapinfo1/,,,SPSST。:;1.2p/m2,DvDsDv’;()1.2p/m2,DvDsDv’。:;;;SPSS;Mapinfo:U491.7:A:1008-7109(2016)02-0014-08DOI:10.3969/j.issn.1008-7109.2016.02.004JOURNALOFNINGBOUNIVERSITYOFTECHNOLOGY282Vol.28No.220166Jun.201620162,。,,,“”,,[1-2]。,。,,、、[3-4]。、、、、、、、。、,。:(2009)[5](K-M),;(2008)[6]“--”,,;(2011)[7]、,。,,、、、、GPS、[1]。:WilliamH.K.Lam[8-9];S.P.Hoogendoorn[10-11]。、、、、。,,,,,,。11.1,、。1.2,,,1。11.37:00~7:1511:40~11:55,30。1.415,。,,,。1.527m×3m,,1。22.1,A,(1)。NA3(a),(1)。(1),Ds,p/m2;N,p;A,m2。。2,xy。A11.5m2,Ds10p/m2;A212m2,Ds21.25p/m2。,,,,。22.2,A,Ai。:(2)[12]:(3),Aii,m2;i,1/m2;:1620162,p/m2。2.3Dv’DvA,Ai,ΣiAi≤A(Ds)。A,N,3(b),Dv’(4)。(4),Dv’,p/m2;N,p;Aii,m2。A,N,3(c),Dv(5)。(5),Dv’,p/m2;Aii,m2;A,m2;N,p;,p/m2。Dv’DsDv’A;Dv:(6),α,β()。(a)ClassicaldensityDs(b)VoronoidensityDv’(c)VoronoidensityDv3,4。(a)DsDv’()(b)DsDv()17(c)DsDv’()(d)DsDv()(e)Ds、Dv’Dv()(f)Ds、Dv’Dv()4Ds、Dv’Dv33.1SPSS()。1:。3.1.1①1Ds0.0060.083,Dv’0.9840.992,Dv0.0990.315。DsDv’,Ds,Dv’。②1Ds0.0740.102,Dv’0.8911.247,Dv0.1340.237。DsDv’,A,,Dv’,()()Ds0.0060.0830.0740.1020.0220.1500.9440.925Dv'0.9840.9920.8911.2470.0480.2191.3411.312Dv0.0990.3150.1340.2370.1140.3381.5351.525:1820162DsDv。3.1.2①1Ds0.0220.150,Dv’0.0480.219,Dv0.1140.338。,,DsADv’,,。②1Ds0.9440.925、Dv’1.3411.312、Dv1.5351.525。DvDsDv’(7)。3.2SPSS3.2.1SPSS:H0=DsDv’Dv,()()(0),,23。2:df1df2。3:df;FF。2,0.06,0.05,,;3,P0.0000.05,:,。3.2.2SPSSTT:H0=μ1-μ2=0,μ1μ2。T。4:N;Sig。Levenedf1df254.56622010.06dfF53.291226.64572.1880.00074.1922010.369127.483203NSig.NSig.Ds&Dv’98-0.0830.500980.6930.000Ds&Dv980.3770.002980.7780.000Dv’&Dv98-0.1780.147980.4920.000195T:tt;df;Sig。①4。Dv’Ds、Dv-0.083-0.178,Dv’,,DsDv0.377,DsDv。DsDv’、Dv0.6930.778,0.0,DsDv’、Dv,Dv’Dv0.4920.05,。②5T。P0.000,。,DvDsDv’;,DvDsDv’。4,。,:1),。2)1.2p/m2(),Dv’,Dv;()1.2p/m2,Dv,,DvDsDv’。,Ds,Dv’,DvDv’。,Dv。:[][]:,[],,,[],,:[],,,[],,():95%tdfSig.Ds&Dv’-1.14511.01070.122-1.390-0.900-9.351670.000Ds&Dv-0.1350.2960.035-0.206-0.063-3.766670.000Dv’&Dv1.0101.1010.1330.7431.2767.563670.000Ds&Dv’-0.3870.1580.016-0.419-0.355-24.181970.000Ds&Dv-0.6000.2410.024-0.648-0.552-24.607970.000Dv’&Dv-0.2120.3000.030-0.273-0.152-7.010970.000:2020162[],,,[],,():[][],[][],[][],[],,[],,:[],[],,():[],[],:,:[],[]:,[],,,[]:,,():21
本文标题:基于泰森多边形法的行人密度计算方法
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