Travel Demand Model - OKI

OKI/MVRPC Travel Demand Model – Version 6.0EIINT=EIINTP∗OCCHBWHBW+ AHBW* TOTLV+ EIINTP∗OCCHBOHBO+ AHBO* TOTLV+ EIINT* FNHBA*OCCHBWNHB+ AHBO* TOTLVwhere TOTLV is the total daily home-based and non home-based vehicle trip ends, OCC is theaverage vehicle occupancy, and F NHB is the fraction of home-based attractions that are NHB trips,TOTLVHBW HBW HBO HBOHBW HBOP + A P + ANHB A + A= ++ F ∗.HBWHBONHBOCCOCCOCCEvaluating total productions, attractions, vehicle occupancy and daily vehicle trip ends in theabove equations yields the proportion of EI trip ends that are HBW, HBO and NHB trips:EIINT= 0 .292 ∗ EI + 0.547 ∗ EI + 0. 161 ∗ EIINTINTINTPlease refer to “Methodology and Validation Report”, OKI Regional Model Tier 2 Version foradditional information on the allocation of EI trip ends.Relative to Model 5.4, OKI HBW trip productions increased, primarily due to the elimination oftruck trips. There is little net gain otherwise because the reduction in HBW IE trip productions isapproximately equal to the reduction in total OKI HBW trip productions, the latter due most likelyto the reduction in employed residents exhibited by the consolidated socio-economic data. Therewas a substantial gain in HBW trip attractions, due in part to the reduction in IE trips and in partto the redistribution of originally MVRPC trip attractions to the OKI region. Similarly, in the caseof HBO trip productions and attractions, relative to Model 5.4 the region gained trips once the IEtrips get accounted for.Table 6-2 Internal-External Trip Reconciliation, Home Based Work TripsRegionC O N S O L I D A T E D M O D E LTrip DifferenceIncluding IE Trips Excluding IE Trips Person TripsVehicle TripsProd. Attr. Prod. Attr. Prod. Attr. Prod. Attr. % of IEInternalExternalTripsOKI 1,140,284 1,233,402 1,086,364 1,187,706 53,920 45,696 47,717 40,439 41% 213,976MVRPC 561,712 484,665 534,356 453,038 27,356 31,627 24,209 27,988 43% 120,104MiamiCo. 74,171 58,086 66,272 51,516 7,899 6,570 6,990 5,814 39% 32,567All 1,776,167 1,776,153 1,686,992 1,692,260 89,175 83,893 78,916 74,242 42% 366,647RegionOKI MODEL 5.4 AND MVRPC BASE 94 MODELTrip DifferenceIncluding IE Trips Excluding IE Trips Person TripsVehicle TripsProd. Attr. Prod. Attr. Prod. Attr. Prod. Attr. % of IEInternalExternalTripsOKI 1,152,052 1,154,614 1,089,151 1,088,677 62,901 65,937 55,665 58,351 34% 337,576MVRPC 542,161 542,142 501,162 480,460 40,999 61,682 36,282 54,586 27% 338,219MiamiCo. N.A N.A N.A N.A N.A N.A N.A N.A N.A 50,277All N.A N.A N.A N.A N.A N.A N.A N.A N.A 726,072Trip Generation - Trip Generation Analysis 24