Travel Demand Model - OKI

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OKI/MVRPC Travel Demand Model – Version 6.0• Due to the regional consolidation some previously external-to-external trips actually originatein the consolidated region. These trips need to have their origin geocoded for basic streetaddress and landmark information.In general, greater confidence was placed in the TAZ data than in the coordinate data. Thisresulted from the process used by ODOT to revise the previous geocoding effort. 4 A process wasdevised to assign the consolidated TAZs making extensive use of the 1995 TAZ information whenavailable, and otherwise address matching and various rules involving the zip code and landmarksurvey information. Figure 8.1 depicts the process and rules used. The pre-geocoding script,which assigned TAZs based on the 1995 TAZ data and lat/long coordinates, resolved 68% of alltrip origins. Of the remaining records, 2% were resolved through address matching, 10% wereresolved solely on the basis of the 1995 TAZ (using the zone centroid as the location of the triporigin), 2% were resolved on the basis of the survey zip code (using the location of the zip coderegion as the location of the trip origin), 0.5 % were resolved through landmark matching, 4%were assigned a ESN on the basis of the city of origin or exact origin location, and 15% remainedunresolved. Of the unresolved records, 10% are known to have started inside the consolidatedregion, 1% outside the consolidated region, and 4% are completely ungeocodable.Table 8-2 Number of Records from Stations in the Consolidated Model, OKI RegionConsolidated Model GeocodingTAZODOT Geocoding Valid TAZ Valid ESN UnknownESNUnknownUncodableTotalODOTPercentODOTExternal-InternalValid TAZ 21,196 0 0 1 0 21,197 72%TAZ unknown (9999) 933 12 2,004 684 0 3,633 12%Ungeocodable (9998) 0 0 0 0 696 696 2%External-ExternalValid ESN 538 3,204 287 40 22 4,091 14%ESN unknown (9999) 0 0 0 1 0 1 0%Ungeocodable (9998) 0 0 0 0 1 1 0%Total Consolidated 22,667 3,216 2,291 726 719 29,619Percent Consolidated 77% 11% 8% 2% 2%Table 8-3 Number of Records from Stations in the Consolidated Model, Mon/GreCountiesConsolidated Model GeocodingTAZUnknownESNUnknownTotalODOTPercentODOTODOT GeocodingValid TAZ Valid ESNUncodableExternal-InternalValid TAZ 14,249 0 241 0 0 14,490 73%TAZ unknown (9999) 112 2 1,528 29 0 1,671 8%Ungeocodable (9998) 0 0 0 0 1,090 1,090 6%External-ExternalValid ESN 472 1,677 259 26 17 2,451 12%ESN unknown (9999) 5 4 0 8 58 75 0%Ungeocodable (9998) 0 0 0 0 6 6 0%Total Consolidated 14,838 1,683 2,028 63 1,171 19,783Percent Consolidated 75% 9% 10% 0% 6%4 Please refer to Technical Memorandum: Processing of Cordon Line OD Survey Data. Ohio Department ofTransportation, Planning Division, Office of Technical Services. Volumes OKI Council of Governments,Miami Valley Regional Planning Commission, Miami Valley Expansion Area. Feb-Mar 2000.Trip Generation - External Cordon Survey Analysis 40
OKI/MVRPC Travel Demand Model – Version 6.0Figure 8-1 Cordon Survey Geocoding Process and Results, In-Consolidated RegionRecordsTotal surveys: 82,514In Consolidated RegionTotal surveys: 58,345Total addresses: 58,34571% of surveys55% of addressesTotal addresses: 106,664Out of Consolidated RegionTotal surveys: 24,169Total addresses: 48,33929% of surveys45% of addressesPre GeocodingScriptNeedGeocoding16,20228%GeocodedResolved42,14372%New TAZ assigned automatically*1:1 assignment: 29,171Zone assigned from ESN Lat/Long: 1,555Zone assigned from Lat/Long: 8,444Zone assigned from old TAZ centroid: 632* Details of process at bottom of page39,80268%Streetlevelmatch?YesTAZ code insurvey =spatial oldTAZ?YesAV_status = STAssign new TAZspatially4941%New TAZ cannot be assignedSurvey is coded asungeocodableCodes 998/99982,0894%NoNoZip code insurvey =spatial zip?YesAV_status= SZAssign new TAZspatially4871%Lat/Long point felloutside of newTAZ region2520.05%ESN to beassigned later1,1042%Survey hasTAZcode?YesNoZip code outside of region50%Get centroidof TAZ insurveyAV_status= OTAssign new TAZspatially5,52510%NoSurveyhas Zipcode?YesZip codecentroid inregion?YesAV_status= ZPAssign new TAZspatially1,1072%NoNoUnresolved7,73713%Zip code outside of region8471%Surveys with no new TAZ assigned8,84117%Details of new TAZ assignment process1:1 assignment: Consolidated TAZ code assigned directly from Rosella’s spreadsheetZone assigned from ESN Lat/Long: Survey has an ESN assigned and a Lat/Long. Lat/Long location was used to spatially determineconsolidated TAZ code.Zone assigned from Lat/Long: Survey had a TAZ assigned and a Lat/Long. Lat/Long location was verified to be spatially within oldTAZ, and used to determine consolidated TAZ code.Zone assigned from old TAZ centroid: Survey had a TAZ assigned and a Lat/Long. Lat/Long location was not in assigned old TAZ, sosurvey TAZ centroid was used to assign a consolidated TAZ code.Source: Rowekamp and Associates, Inc.Trip Generation - External Cordon Survey Analysis 41
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APPENDIX F • TRAVEL DEMAND MODEL
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OKI/MVRPCTravel Demand ModelVersion
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Table of ContentsPart IPart IIPart
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OKI/MVRPC Travel Demand Model - Ver
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Table A.1 (cont.)Zone System Equiva
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Table A.2Zone System Equivalences -
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Table A.3Zone System Equivalences -
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Table B.1External Stations in the C
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Table B.1External Stations in the C
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User Documentation forAutomated Acc
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[Transit Format][New Link Attribute
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distance for each centroid or node.
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Figure 1Example Control File for th
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Table of Contents1. Background ....
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Index of FiguresFigure 2-1 Alternat
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NORTH-SOUTH TRANSPORTATION INITIATI
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Run # 63: Start with 7.17 estimatio
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Run # 67:Split parking cost from ot
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Run # 70a:Include zero-auto segment
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Run # 71c:Repeat #71a with zero aut
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Run # 71g:Repeat #71d with wait tim
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Run # 73:Include residential densit
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Run # 76:Nest: auto vs transitVaria
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Run # 79:Repeat #72 with zero autos
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Run # 80:Nest: auto vs. all othersV
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Run # 82:(071h) nested: auto vs tra
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Run #3VariableModeDrive Shared Ride
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Run #8VariableModeDrive Shared Ride
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Run #12 test: make aoc=10.5 instead
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Run #29VariableModeDrive Shared Rid
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Run #33VariableModeDrive Shared Rid
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Run #37vot constrained to $7.00Vari
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Run #30bSame as #30a, combine cost
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Run #140 (same as run #40)vot const
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Run #140b (same as run #40)vot cons
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Run #141avot constrained to $3.00 &
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Run #141cvot constrained to $3.00 &
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Run # 1:Base RunVariablesModesDA Sh
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Run # 5:Base Run with walk time set
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Part VITRIP ASSIGNMENT ANDVALIDATIO
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Index of TablesTable 2-1 Average Ve
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VOBFigure 4-8 Screenline Location -
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Table of Contents1. Introduction...
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Appendix FTravel Demand ModelingTec
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Table of Contents1. Introduction...
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2. Surveys and Other Datasets2.1 OK
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Table 2-1 OKI Home Interview Survey
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Table 1-4 On-Board Survey Data Dict
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2.3 External Station Survey - Conso
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2.4 External Cordon Survey - Consol
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2.5 External-External Trip Table fr
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2.20 Screenline Shape File - Screen
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