Travel Demand Model - OKI

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OKI/MVRPC Travel Demand Model – Version 6.0Table 8-10 External-Internal Trip Special Generator ZonesTAZ No. Special Trip Generator TAZ No. Special Trip Generator9 Coney Island Amusement Park 1490 Dream St. Commercial Area27 Beechmont Mall 1502 Florence Mall39 SENCO Products at Mt. Carmel 1559 Argosy Casino89 Blue Ash Industrial 1606 Saint Luke's Hosp. / Turfway Racetrack118 General Electric Plant at Evendale 1794 Miami Valley Hospital177 Cincinnati Machine 1869 Salem Mall249 River Front / Art Museum 1872 Meijer's/Shopping Area at Englewood273 Convention 1927 Chrysler Corporation286 Hyatt Regency at Cincinnati 1940 ITT Technical Institute294 Cinergy Field 1949 Delco & Delphi Plants337 Veterans' Administration Medical Center 1957 Dayton International Airport346 Cincinnati Zoo 1971 Children's Medical Center at Dayton355 Spring Grove Industrial 1999 Shopping Area at Huber Heights405 Lazarus Distribution Center 2046 General Motors Plant at Moraine417 Tri County Mall 2047 General Motors Plant at Moraine706 Downtown Oxford 2125 Walmart at Huber Heights1014 King's Island Amusement Park 2139 Wright-Patterson Air Force Base1015 King's Island Amusement Park 2141 Wright-Patterson Air Force Base1181 Eastgate Mall 2143 WPAFB Residential Area (Fairborn)1193 Bethesda Medical Building / Bigg's Mall 2145 Wright State University / Shopping Area1204 Withamsville Shopping Area 2188 Fairfield Mall1217 Clermont County Hospital 2352 Downtown Tipp City1423 Saint Elizabeth's Hospital at Edgewood 2359 Miami Valley Mall at Piqua1477 Cincinnati-Northern Kentucky Intl. Airport 2399 Downtown Piquawhere the revised station volumes are 4,900 for 2495, 6,700 for 2512 and 3,800 for 2521, andthe ODOT station volume totals are listed in Table 8.6. In addition, the volume at station 2531(Palmer Road) was set to zero since this station in fact represents the same location as station2491 (Bellefontaine Road).• Total traffic counts at seven stations were discounted so as not to double-count trips that reenterthe region after crossing the external cordon. Trips between Warren and GreeneCounties may exit the region via I-71 or SR-73 and then re-enter it via SR-72, US-68 and SR-380 (or vice-versa). Similarly, trips between Butler and Montgomery Counties may exit theregion via SR-503 or SR-122 and then re-enter it via SR-725 or US-35. The discount factorsapplied to each station are listed in Table 8.11. The factors represent the proportion ofoutbound trips at each station with a final destination inside the combined region; theproportions were calculated using cordon survey data.Table 8-11 External Station Volume Discount FactorsStation No. LocationIE TripsEE TripsAutos Trucks Autos Trucks2446 IR-71 5% 1% 5% 0%2447 SR-73 10% 1% 3% 3%2508 SR 72 S 20% 0% 20% 14%2509 US 68 S 10% 10% 9% 13%2510 SR 380 10% 45% 8% 12%2449 SR 503 10% 11% 0% 0%2511 SR 725 W 15% 26% 11% 8%2512 US 35 W 5% 0% 0% 3%Trip Generation - External Cordon Survey Analysis 50
OKI/MVRPC Travel Demand Model – Version 6.0The internal-external trip production equations (at each internal zone i) take the followinggeneral form:IE Trip Pr odctionsi= β ∗ Populationi+ γ ∗ Employment iThe coefficients of this equation were estimated for each cordon location strata using OrdinaryLeast Squares estimation. Zones not reported in the cordon survey were assigned zero tripproductions, instead of setting them to missing values. The results of the estimation aresummarized in Table 8.12. Note that, as expected, the closer a zone is to the cordon line thehigher the trip rate per inhabitant and per job is. In all cases the coefficient estimates for and are statistically significant and have the correct signs, indicating that increases in zonalpopulation and employment result in higher internal-to-external trip productions. The R 2reported in Table 8.12 has been redefined to account for the zero intercept. The models may beimproved by stratifying them, for example into work and non-work trips, and using variables suchas retail employment or retail square footage to explain non-work trips.A few zones were excluded from the estimation dataset because they appeared to be outliers.The criteria for excluding individual zones were defined based on residual plots, and are asfollows:• Central Cincinnati (cloc=1), exclude ifo Population greater than 3,500 and less than 100 trips reportedo Population greater than 2,300 and more then 400 trips reportedo Population less than 1,000 and more then 250 trips reportedo Employment less than 1,000 and more than 400 trips reported• Central Dayton/Xenia (cloc=7), exclude if population less than 500 and more than 500 tripsreported• Intermediate Zones (cloc=2), exclude ifo Population less than 1,500 and more than 500 trips reportedo Population more than 6,000o Employment less than 4,000o Employment less than 1,500 and more than 600 trips reported• Close to the Cordon Zones (cloc=3), exclude ifo Employment greater than 3,000o Population greater than 4,500o Population greater than 1000 and more than 1,500 trips reportedo Employment less than 1,000 and more than 1,350 trips reported• Special Generators (cloc=5), exclude if Employment less than 2,500 and more than 2,000trips reported.Note that these criteria are completely empirical and would not necessarily apply with differentcordon location classifications, zonal aggregations or cordon survey dataset. The limits definedabove are merely a convenient way to exclude outliers and to document the reason for theirexclusion.Trip Generation - External Cordon Survey Analysis 51
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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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LinkType = 99VolumeDelay = 99Lanes
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NetworkScale = 1.0 Scale factor to
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Figure 4Example Output from DRVLINK
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Appendix ASample EMME/2 Transit Lin
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Appendix FTravel Demand ModelingTec
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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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2759OKI/MVRPC Travel Demand Model -
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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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