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

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. Introduction - Current Model

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. OKI/MVRPC Model by the Numbers

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. The Transit Model

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. The Transit Network Model

9. Transit Skim Model

10. Transit Loading Model

11. The Transit Network Model

12. The Transit Network Model

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. The Transit Network Model

15. The Transit Network Model

16. Network Steps
Add “override” Transit Links (TRLinkAM & TRLinkMD)
Set Network Speeds based on function curves
Set Fare Zones for Cincinnati Metro

17. The Transit Network Model

18. The Transit Network Model

19. PCWalk Model

20. PCWalk Model
Merge Transit
Lines together for
Buffering
Output link file to
be used in Walk
Connector Model

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. PCWalk Model
Intersect Transit
Buffer to TAZs
Gets area within
TAZ for each
buffer

23. PCWalk Model
Compile data into
result file for
Walk Connectors
and Mode Choice

24. The Transit Network Model

25. The Transit Network Model

26. Walk Connector Model

27. Walk Connector Model
Get node lookup
file

28. Walk Connector Model
Get list of bus
stop nodes
From Link File

29. Walk Connector Model
Create Initial
Walk Connectors
manually
Loop through
zones, Compare
to PCWalk, Find

30. Walk Connector Model
Convert Initial
Walk Connectors
to Feature Class

31. Walk Connector Model
Delete Walk
Connectors Crossing
Barriers
Sort by Connector
Length

32. Initial Connectors
Downtown
Cincinnati
Ohio River
Downtown
Downtown Covington Newport

33. Final Connectors

34. Final Connectors
Freeways
Blocking
Connections
Rivers
Blocking
Connections

35. The Transit Network Model

36. The Transit Network Model

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. 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. Questions?
Andrew Rohne
arohne@oki.org