Travel Demand Model - OKI

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OKI/MVRPC Travel Demand Model – Version 6.05000450040003500Mean Trip Lengths in MinutesInternal-Internal Trips: 16.0All Assigned Trips: 18.8+(intrazonal trips not included)3000Frequency2500200015001000500015913172125293337414549535761SU Off-peak All Trips6569737781858993MinutesSU Off-peak Internal-Internal TripsFigure 3-3. Off-peak period single-unit truck trip lengths971011051091131171211255000450040003500Mean Trip Lengths in MinutesInternal-Internal Trips: 27.6All Assigned Trips: 33.2+(intrazonal trips not included)3000Frequency2500200015001000159131721252933374145495357616569737781858993975000MU Off-peak All TripsMinutesMU Off-peak Internal-Internal TripsFigure 3-4. Off-peak period multi-unit truck trip lengths101105109113117121125Truck Model - Base-Year Truck Model Results 41
OKI/MVRPC Travel Demand Model – Version 6.03.5 Validation to Truck Count DataA total of 890 truck traffic counts were available for comparison with assigned daily truck volumes.Comparisons were made for total two-way truck volumes, rather than by SU and MU truck types. ADTcounts that were split between pairs of one-way freeway links were matched and comparisons made onthe basis of the sum of the truck volumes loaded on the pair of links.Figure 3-5 shows a scatter plot of estimated and observed daily truck flows for these 890 count locations.The r 2 static of 0.91 is very good, and the dispersion of data points is relatively tight, with few outlierseven for higher-volume count locations.30000Estimated Daily Truck Flows250002000015000100005000y = 1.0354xR 2 = 0.913900 5000 10000 15000 20000 25000 30000Observed Daily Truck FlowsDaily Truck FlowsLinear (Daily Truck Flows)Figure 3.5. Comparison of estimated and observed daily truck flows for 890 dailycount locations.A comparison of observed and estimated daily truck volumes by link functional class is shown in Table3.7. The root mean squared error (RMSE) measurements for these facilities reflect the size of theaverage link-flow error, while the percent root mean squared error (PRMSE) expresses this error relativeto the average truck count volume for the classification. The PRMSE statistics for Interstates, in general,and I-75, in particular, are very good. The link-flow error measurements on other facilities are not quiteas good; however, daily truck flows on arterials, collectors and ramps represent a relatively smallproportion of total daily vehicle flows. The ratios of estimated to observed traffic indicate that theassigned truck volumes tend to be on the high side for interstates and arterials and on the low side formajor collectors, ramps and expressways.Truck Model - Base-Year Truck Model Results 42
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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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Index of TablesTable 2-1 Socio-Econ
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Appendix FTravel Demand ModelingTec
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Index of TablesTable 2-1 Trip Lengt
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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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Run # 8:Base Run, split walkVariabl
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Run # 10: Nested structure (autos v
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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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Page 381 and 382: OKI/MVRPC Travel Demand Model - Ver
Page 391 and 392: Table of Contents1. Introduction...
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Page 451 and 452: 2. Surveys and Other Datasets2.1 OK
Page 453 and 454: Table 2-1 OKI Home Interview Survey
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