OKI Transit Model Presentation at Futura 2009


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This presentation describes the new transit model in the OKI Travel Demand Model. This was presented at Futura 2009 in Palm Springs, CA.

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  • OKI Transit Model Presentation at Futura 2009

    1. 1. OKI/MVRPC Travel Demand Model: PT Transit Model Futura 2009 Andrew Rohne Travel Modeling Department Manager Ohio-Kentucky-Indiana Regional Council of Governments Cincinnati, Ohio
    2. 2. Introduction - Current Model
    3. 3. Introduction - Current Model Current Model uses TranPlan transit... issues Difficult to interpret input & output files Built GIS Tools to assist... imperfect solution Old tools, no maintenance, no 64-bit capable upgrade No customization of some key items (wait times, etc) Old file formats (conversions....) Goals Fewer Inputs Geodatabase Inputs Keep in mind: Census, HHTS, and TOBS next year
    4. 4. OKI/MVRPC Model by the Numbers
    5. 5. OKI/MVRPC Model by the Numbers 11 County Model Area - 3,924 Square Miles 3 States, 2 MPOs, 2 CBDs (Cincinnati and Dayton) 2.7 Million People (2005) (1.9 Cincinnati, 0.8 Dayton) 5 Fixed Route Transit Services (with different fares, etc.) 6 Different Flat-Rate Fares (Local vs. Express) 1 Zone Fare Structure (5 Zones) Differing transfer prices within and among some systems
    6. 6. The Transit Model
    7. 7. The Transit Model 8 User Classes, not always used - Needed for Mode Choice Local Bus Walk and Drive (classes 1 and 2) Express Bus Walk and Drive (classes 3 and 4) Light Rail Walk and Drive (classes 5 and 6) Inter-city Rail Walk and Drive (classes 7 and 8) GIS Based Inputs Where Possible Lines Stations and Park-N-Ride Lots Walking Barriers Customized Walk Access using Python On-The-Fly Percent Walk Computation using Python
    8. 8. The Transit Network Model
    9. 9. Transit Skim Model
    10. 10. Transit Loading Model
    11. 11. The Transit Network Model
    12. 12. The Transit Network Model
    13. 13. Initial Preparation Steps Start Cluster Set Variables Prepare Station-Based Connectors Assumption that stations will be surrounded by sidewalks Prepare Auto Connectors Prepare Generate Statements Access Connectors Egress Connectors CBD Sidewalk Connectors
    14. 14. The Transit Network Model
    15. 15. The Transit Network Model
    16. 16. Network Steps Add “override” Transit Links (TRLinkAM & TRLinkMD) Set Network Speeds based on function curves Set Fare Zones for Cincinnati Metro
    17. 17. The Transit Network Model
    18. 18. The Transit Network Model
    19. 19. PCWalk Model
    20. 20. PCWalk Model Merge Transit Lines together for Buffering Output link file to be used in Walk Connector Model
    21. 21. PCWalk Model Buffer Transit Lines Peak and Off-Peak Batch Files control headway check 4 buffers: Short and Long Walk Peak and Off-Peak
    22. 22. PCWalk Model Intersect Transit Buffer to TAZs Gets area within TAZ for each buffer
    23. 23. PCWalk Model Compile data into result file for Walk Connectors and Mode Choice
    24. 24. The Transit Network Model
    25. 25. The Transit Network Model
    26. 26. Walk Connector Model
    27. 27. Walk Connector Model Get node lookup file
    28. 28. Walk Connector Model Get list of bus stop nodes From Link File
    29. 29. Walk Connector Model Create Initial Walk Connectors manually Loop through zones, Compare to PCWalk, Find
    30. 30. Walk Connector Model Convert Initial Walk Connectors to Feature Class
    31. 31. Walk Connector Model Delete Walk Connectors Crossing Barriers Sort by Connector Length
    32. 32. Initial Connectors Downtown Cincinnati Ohio River Downtown Downtown Covington Newport
    33. 33. Final Connectors
    34. 34. Final Connectors Freeways Blocking Connections Rivers Blocking Connections
    35. 35. The Transit Network Model
    36. 36. The Transit Network Model
    37. 37. Create Final Transit Network Create Final Transit Network Runs Twice - Peak and Off-Peak 7 Fare Structures 6 Flat-Rate 1 Zone Structure 8 Factors files Local Bus Walk & Drive Express Bus Walk & Drive Light Rail Walk & Drive
    38. 38. Conclusion Not Reinventing the Wheel Quick Rebuild of Old semi-functional Transit Model Reduced potential for error from not updating files Transit On-Board Survey Fall 2010 GPS-Based Household Travel Survey Right Now! Actual implementation later this year...
    39. 39. Questions? Andrew Rohne arohne@oki.org