Emme Modeller Applications

1. EmmeModeller Applications Puget Sound Regional Council’s Model Conversion via EmmeModeller 22nd International Emme Users’ Conference September 15-16, 2011 • Portland, OR

2. 2 Presentation Overview • Context • Conversion • Examples • Conclusions

3. Context

4. 4 4 Model Basics • General: • Hybrid Trip-based (Activity Generator for Trip Generation) • 5 Global Iterations (Feedback to Activity/Trip Generation) • 10 Trip Purposes (HBWork Stratified by 4 Income Groups) • 5 Time Periods (Homed-based Purposes, Auto Modes Only) • Mode Choice Market Segmentation (Car- Worker/Person) • 5 Transit Sub-Modes (Drive- and Walk-Access) • AM,MD Transit Assignments by Sub-Mode • Generalized Cost/Multi-Class Vehicle Assignments (11) • Approximately 200 Macros (Report Files x5) • Lengthy Runtimes (16 – 24 Hours)

5. 5 5 Model Structure • Emmebanks (5): • Bank 1 (4.4gb, 750 full matrices) • HBWork & College Distribution, Mode Choice, AM Transit and Auto Assignments • Bank 2 (3.0 gb, 500 full matrices) • HBNon-Work/NHB Distribution, Mode Choice, Mid-Day Transit and Auto Assignments • Bank 3 (1.5 gb, 200 full matrices) • PM, Evening, Night Auto Assignments • Time of Day (1.4 gb, 250 full matrices) • P>A and A>P Shares by Time of Day by O-D Pair • Trip Generation (1.2 gb, 200 full matrices)

6. 6 6 Other Considerations • Integration with Other PSRC Models: • UrbanSim • Benefit-Cost Analysis Tool • Activity-Based Travel Model • Utilization of Staff Resources: • UrbanSim ~ 5 • Benefit-Cost ~ 1 • Travel Modelers ~ 4 • Other ~ 1 • Regional Modeling Community: • Legacy Local Jurisdiction Models and Modellers • Production Model Ready for Next Major Project

7. Conversion

8. 8 8 Immediate Needs • Accommodate New Zones and Networks: • Zones increased from 1,200 to 4,000 • Network links increased from19,500 to 41,000 • Restructure Model: • Smaller emmebanks (in terms of full matrices) • Disentangle/simplify complex models (e.g. HBW Mode Choice) • Testing: • Models • Structures • Improve runtimes • Documentation: • Incorporate changes, improvements, updates • Validation

9. 9 9 Longer Term Strategic Needs • Develop “Junior” Staff – Travel Modeling Capacity: • Limited Budgets/Staffing (i.e., “Do More with Less”) • AB Model • Develop Staff Python Language Skills: • PSRC Heavily Invested in Python • Range of Skill Levels (No Experience/Novice – Expert) • Maintain Culture of Research and Development: • In-House Model Specification/Estimation (e.g., OPUS and UrbanSim) • Serve Regional Modeling Community: • Clearinghouse/One-Stop-Shop/A-la-carte Services • Maintain Future Flexibility: • Tons of Unknowns

10. 10 10 Schedule and Status • Schedule: • Original: • Conversion May-August, Finished by Conference • Actual: • Installed Beta in May, Distracted by Other Stuff Until Mid-August, Not Finished by Conference, Hope to Finish by End of Calendar Year • Progress: • Testing and Experimentation • Built/Implemented Simple Non-Work Distribution Demo Tool • Specs Exported

11. Examples

12. 12 12 Non-Work Distribution • ~/ --- Prepare HB-Shopping friction factors • 3.21 • ~+|1|y|mf"hspfri"|n • exp(-.1590*mf91) • ~+|||y|1,956||1,956||2 • ~+|1|y|mf"hspfri"|n • mf"hspfri"*1 • ~+|||y|1,956||1,956||2|q • ~/ • ~/ --- Set HB-Shopping Friction Factors Equal to Zero for • ~/ Externals to Prevent E-E Trips • 3.21 • ~+|1|y|mf"hspfri"|n|0|||y|939,956||939,956||2|q • ~/ • ~/ --- Prepare HB-Other (not school or college) friction factors • 3.21 • ~+|1|y|mf"hbofri"|n • exp(-.1455*mf91) • ~+|||y|1,956||1,956||2|q • ~/ • ~/ --- Set HB-Other Friction Factors Equal to Zero for • ~/ Externals to Prevent E-E Trips • 3.21 • ~+|1|y|mf"hbofri"|n|0|||y|939,956||939,956||2|q • ~/ • ~/ --- Prepare NHB Work-Other friction factors • 3.21 • ~+|1|y|mf"wkofri"|n • exp(-.0795*mf91) • ~+|||y|1,956||1,956||2|q • ~/ • ~/ --- Set NHB Work-Other Friction Factors Equal to Zero for • ~/ Externals to Prevent E-E Trips • 3.21 • ~+|1|y|mf"wkofri"|n|0|||y|939,956||939,956||2|q • ~/ • ~/ --- Prepare NHB Other-Other friction factors • 3.21 • ~+|1|y|mf"otofri"|n • exp(-.1235*mf91) • ~+|||y|1,956||1,956||2|q • ~/ • ~/ --- Set NHB Other-Other Friction Factors Equal to Zero for • ~/ Externals to Prevent E-E Trips • 3.21 • ~+|1|y|mf"otofri"|n|0|||y|939,956||939,956||2|q • ~/ • ~/ Non-Work Friction Factor Calculation Completed! • reports= ~/ --- Compute distributed daily trips for Home-Based Shopping 3.22 ~+|1|mf"hspfri"|mo"hsppro"|md"hspatt"|y ~+|1,956||1,956||~?q=3|2|~?q=1|y||2|1|mf"hspdst"|n|2 q ~/ ~/ Sum Retail and FIRES Employment 3.21 ~+|1|y|md98|n|md"retail"+md"fires"|||n|2 q ~/ Reproportion HB Other Attractions ~<run2mac\predbal.mac mo"hbopro" md98 mf100 30 md"hboatt" ~/ ~/ --- Compute distributed daily trips for Home-Based Other 3.22 ~+|1|mf"hbofri"|mo"hbopro"|md"hboatt"|y ~+|1,956||1,956||~?q=3|2|~?q=1|y||2|1|mf"hbodst"|n|2 q ~/ ~/ --- Add special generators to HBO trip table ~/ 3.21 ~+|1|y|ms"upper2"|n|mo"upper2"|||y|1,956||+|2 ~+|1|y|mf"hbodst"|n|mf"hbodst" + mo"upper2"/ms"upper2"*(md"spghbo"+0.75*md"spgapt") ~+|||y|1,956||1,956||2 q ~/ ~/ --- Compute distributed daily trips for NHB Work-Other 3.22 ~+|1|mf"wkofri"|mo"wkopro"|md"wkoatt"|y ~+|1,956||1,956||~?q=3|2|~?q=1|y||2|1|mf"wkodst"|n|2 q ~/ ~/ --- Add special generators of airport trips to Work-Other trip table ~/ 3.21 ~+|1|y|md"wkotot"|n|mf"wkodst"|||y|1,956||1,956||+|2 ~+|1|y|mf"wkodst"|n|mf"wkodst" + 0.25*md"spgapt"*mf"wkodst"/md"wkotot" ~+||md"wkotot"|0,0,exclude|y|1,956||1,956||2 q ~/ ~/ --- Compute distributed daily trips for NHB Other-Other 3.22 ~+|1|mf"otofri"|mo"otopro"|md"otoatt"|y ~+|1,956||1,956||~?q=3|2|~?q=1|y||2|1|mf"otodst"|n|2 q

13. 13 13 Non-Work Distribution

14. 14 14 Non-Work Distribution

15. 15 15 Non-Work Distribution

16. 16 16 Non-Work Distribution

17. 17 17 Non-Work Distribution

18. 18 18 Non-Work Distribution

19. 19 19 Non-Work Distribution

20. 20 20 Non-Work Distribution

21. 21 21 Non-Work Distribution

22. 22 22 Non-Work Distribution

23. 23 23 Non-Work Distribution

24. 24 24 AM Auto Assignment ~/ --- Setting Assignment Options and Parameters ~+|2|2|1 ~+|s|@toll1|0.0383|mf"avehda" ~+|h|@toll2|0.0199|mf"avehs2" ~+|i|@toll3|0.0158|mf"avehs3" ~+|j|@toll4|0.0059|mf"avpool" ~+|s|@toll1|0.0627|mf"ahbw1v" ~+|s|@toll1|0.0340|mf"ahbw2v" ~+|s|@toll1|0.0233|mf"ahbw3v" ~+|s|@toll1|0.0180|mf"ahbw4v" ~+|v|@trkc1|0.0150|mf"alttrk" ~+|u|@trkc2|0.0133|mf"amdtrk" ~+|t|@trkc3|0.0120|mf"ahvtrk" / 4000 / Maximum Memory for Paths 0.001 / Path Cost Equality Tolerance (Initial Proportion) 30 / Path Cost Equality Tolerance (Refinement Iteration) 0.00001 / Path Cost Equality Tolerance (Refined Proportion) 5 / Number of Iterations between Gap Computations %1% / Maximum Number of PG Assignment Iterations 0.01 / Stopping Criterion for Best Relative Gap (Percent) 0.0001 / Stopping Criterion for Relative Gap 0.001 / Stopping Criterion for Normalized Gap (Excess Average Cost) ~/ --- Running Path Based Assignment

25. 25 25 AM Auto Assignment

26. 26 26 AM Auto Assignment

27. Conclusions

28. 28 28 Conclusions • Some Lessons Learned: • Not Much Python Experience Needed • INRO Tutorial, Winnepeg Demo and Sourcecode Useful • Devote Significant Blocks of Time to Make Progress • Logbook an Added Bonus • Report Files Easier to Manage and Navigate • Powerful Desktop API More Relevant • Next Steps: • Develop Custom Tools for PSRC Toolbox • Link Tools for Basic Functional Model • Layer In Model Idiosyncrasies and Complexity • GUI Development

29. 29 29 Conclusions • Why Modeller? • Model Development and Organization • Staff Development • Applied Learning/Experimentation • Python-based • Flexibility • Just Ready For It… • No More Macros • U-I Driven

30. Puget Sound Regional Council: Chris Johnson and Craig Helmann