MXD Trip Generation - Brian Welch英文文献资料

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1、MixedMixedUseUseTripTripGenerationGeneration(MXD)(MXD)Tool:Tool:Development,Development,ValidationValidationandandExamplesExamplesWhyWhyisisMXDMXDImportantImportanttotoUnderstand,Understand,andandCorrectlyCorrectlyStudyStudyandandAnalyze?Analyze?Generat

2、ionYconsistsof80millionpeoplebornbetween1979and1996.•88percentindicatedapreferencetoliveinanurbansetting•One‐thirdarewillingtopaymoreforawalkablecommunitySource:GrowingWealthierOutlineOutline•WhatisMXD?•WhydevelopaMixedUseTripGenerationModel(MXD)?•Howdo

3、esMXDperform?•WhentouseandapplyMXD?FactorsFactorsCorrelatedCorrelatedwithwithReducedReducedTripTripGenerationGeneration•DevelopmentDensity•Jobs/Housingandjob‐typemix•Developmentscale•Networkconnectivity,walkability•Railstations,busstops,transitaccessibl

4、eemployment•Surroundingemployment•HouseholdsizeWhatWhatisisMXD?MXD?•Statisticalrelationshipsbetweenbuiltenvironmentandtravelsurveydata•Estimatespercentreductioninvehicletripsentering/leavingsite•UsesITE(orlocallypreferred)triprates•ReplacescurrentITEmix

5、ed‐usemethodWhyWhydevelopdevelopaaquickquickresponseresponsetooltoolforformixedmixeduseusesites?sites?LimitationsLimitationsofofcurrentcurrentITEITEMethodMethod•Reductionsformixedusebasedonalimitednumber(six)ofsitesinFlorida•Onlylandusesavailablearegene

6、ral(residential,office,retail,and“misc”)•Doesnotaccountfordevelopmentscale•Doesnotaccountforlandusecontext(surroundingarea)•Can’tanalyzeAMpeakhourWhyWhydevelopdevelopaaquickquickresponseresponsetooltoolforformixedmixeduseusesites?sites?(cont.)(cont.)•IT

7、ETripGeneration&Handbookunderstatetrafficbenefitsofmixed‐usedevelopments•Overstatesimpactsofmixed‐usedevelopment/infill/TOD•MXDTool=Instantresults–incorporatessmartgrowthelementsbasedonextensiveresearchwithoutatraveldemandmodelWhatWhatisisthetheMXDMXDMo

8、del?Model?InputInput•Density(population+jobspersquaremile)•Diversity(jobs/housing,retail/housing)•Design(intersectionspersquaremile)•Destinations(jobswithinonemile)•DevelopmentScale(size,totaljobs)•Demographics(householdsize,auto