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Addressing Gridlock: EMME/2 Model Insights for Congestion Reduction

This presentation discusses the EMME/2 model application commissioned by Kemper Freeman, Jr. and led by Dr. Bill Eager to assess and decrease congestion in transportation systems. Presented at the 17th International EMME/2 Users’ Group Conference in Calgary, Canada, the study evaluates parameters such as demand and supply, identifies critical projects, and measures their effectiveness by ranking them. The findings also explore the projected scenario for 2020 and provide tools for project definition and priority within a comprehensive congestion management framework.

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Addressing Gridlock: EMME/2 Model Insights for Congestion Reduction

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  1. Beginning –Constellation Pegasus EMME/2 Model Application End Gridlock Now Commissioned By Kemper Freeman, Jr. Lead By Dr. Bill Eager, TDA Inc.  Presented To 17th International EMME/2 Users’ Group Conference Calgary, Alberta, Canada October 2003 By Clyde Scott, Parametrix

  2. Presentation • EGN (What It Would Take To Reduce Congestion 25%) • Study Parameters • Demand /Supply • Congestion • Identify Projects • Measure Effectiveness • Rank Projects • EMME/2 Application • All-or-Nothing Assignments • Equilibrium Assignments • Additional Demand Options • Scalar Exports to Excel

  3. EGN • Scenario 2020 MTP – Demand Fixed • Delay - Unconstrained minus Constrained VHT • Project Definition • Freeflow Demand > Capacity = (Excess Demand) • Excess Demand/(Lane Capacity) = (Lane Needs) • Project Definition (MTP Plus Additional Lanes) • Travel Characteristics • System-Wide VMT, VHT, & Average Trip Length • Project-Using Subset of Trip Table • Assigned to EGN Network (Travel Characteristics) • Compared to 1998 Travel Characteristics

  4. Model Flow E n i f

  5. Length Constrained Lane Needs

  6. Project List

  7. EMME/2 Model Application • Measure The Effectiveness of Individual Projects • Within A Framework of A Comprehensive Package of Projects • Consistent Comparison To Scenario Alternatives • Existing Conditions • No-Build • Efficient EMME/2 Macro • Linkage to Excel Spreadsheets E n i f

  8. Typical Measures of VMT & VHT • System Wide • Network Skims • By Link Type or VDF(EMME/2 defaults) • By Link Attribute • For All Auto Modes • Matrix Calculations • Sub-Area Summaries • Select Paths – Additional Demand Options • Network Skims • Select Link • Select Segments • Matrix Calculations • Sub-Set of Trip Table (FromSelect Link)

  9. SYS Wide MOE (Excel) SYSTEMWIDE

  10. Select Project SR167

  11. All Projects Overlay Scale = 6000

  12. I-5 Shift To & Shift From

  13. SR-605 Shift To & Shift From

  14. s=%1% ~x=-1 ~y=0 ~z=40 ~:loop ~x+1 ~y+1 ~z+1 2.41 ~+|1|y|@sl|n|0||*|4 ~+|1|y|@sl|n|ul3||ul3=%x%.5,%y%.5||4 q 5.11 ~+|1|~?q=2|2|3|h|5|mf34||||7|@sl||.max.|%x%.5,%y%.5|mf%z%|y|sph%y%|sel proj %y% pmhov|n|4 ~+|c|mf33|||30|.2|.2 5.21 2 2.41 ~+|1|y|@p%y%h|n|volad||*|4|q ~?y<27 ~$loop Additional Options Assignment Select Individual Project Select Project Assignment Store Project Trip Table Store Path

  15. s=%1% ~x=30 ~y=0 2.41 ~:loop ~x+1 ~y+1 ~+|1|n|@p%y%s*timau/60||ci=0|&cj=0||5 ~+|4|ms%y%|p%y%svh|p%y%svht %1%|1 ~+|1|n|@p%y%s*len||?||5| ~+|4|ms%x%|p%y%svm|p%y%svmt %1%|1 ~?y<27 ~$loop q ~!del %s%smoe.rpt reports=%s%smoe.rpt 3.14 2 ms 2 q reports=reports Path VMT - VHT Calculate VHT Store In ms Calculate VMT

  16. EMME/2 Module: 3.14 Date: 02-09-08 06:03 User: E287/TRANSPO..Scot Page: 5793 Project: END CONGESTION NOW ADDED CAPACITY SEACBD --------------------------------------------------------------------------------------------------- Matrix Directory ---------------- Matrix: Flags: Modified: Description: Value: ms01: p1svh 02-09-08 06:03 p1svht 973 123647.609 ms02: p2svh 02-09-08 06:03 p2svht 973 21731.6171 ms03: p3svh 02-09-08 06:03 p3svht 973 72048.0781 ms04: p4svh 02-09-08 06:03 p4svht 973 10888.4501 ms05: p5svh 02-09-08 06:03 p5svht 973 143211.187 ms06: p6svh 02-09-08 06:03 p6svht 973 16861.6015 ms07: p7svh 02-09-08 06:03 p7svht 973 80906.7812 ms08: p8svh 02-09-08 06:03 p8svht 973 78559.625 ms09: p9svh 02-09-08 06:03 p9svht 973 61850.4882 ms10: p10svh 02-09-08 06:03 p10svht 973 27399.3574 ms11: p11svh 02-09-08 06:03 p11svht 973 28466.0898 ms12: p12svh 02-09-08 06:03 p12svht 973 17014.998 ms13: p13svh 02-09-08 06:03 p13svht 973 29333.6757 ms14: p14svh 02-09-08 06:03 p14svht 973 16514.9023 ms15: p15svh 02-09-08 06:03 p15svht 973 30287.6328 ms16: p16svh 02-09-08 06:03 p16svht 973 36206.0273 Scalar Report

  17. Project VMT VHT - Excel

  18. Graph – Excel

  19. 17th International EMME/2 Users’ Group Conference Calgary, Alberta, Canada October 2003

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