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Traffic Analysis Toolbox & Highway Capacity Manual Transition

Traffic Analysis Toolbox & Highway Capacity Manual Transition. Tyrone Scorsone FDOT Systems Planning. Transportation Research Board’s (TRB) Highway Capacity Manual (HCM). HCM Quality/Level of Service (QLOS) Handbook. Detailed Point & Segment Analysis. Facility Level Analysis.

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Traffic Analysis Toolbox & Highway Capacity Manual Transition

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  1. Traffic Analysis Toolbox &Highway Capacity Manual Transition Tyrone Scorsone FDOT Systems Planning

  2. Transportation Research Board’s (TRB) Highway Capacity Manual (HCM)

  3. HCM Quality/Level of Service (QLOS) Handbook Detailed Point & Segment Analysis Facility Level Analysis

  4. Advantages of Analytical/Deterministic Tools

  5. LOS Planning/Preliminary Engineering Tools Generalized Planning Tables Preliminary Engineering Software http://www.dot.state.fl.us/planning/systems/sm/los/default.htm

  6. Capacity/LOS Analyses and Evaluation Tools CORSIM (Microsimulation) TRANSYT-7F Potential Accuracy HCM | TCQSM BLOS | PLOS (Simple Operational Analysis) ARTPLAN FREEPLAN HIGHPLAN (Preliminary Engineering) Generalized Tables (Generalized Planning) Effort/Complexity

  7. Exporting Data to Highway Capacity Software (HCS)

  8. Planning Uses of LOS Techniques

  9. Primary Uses of LOS Techniques • Site Impact • Project Development • Future Year Analysis • Other

  10. Transportation Impact Handbook FDOTTransportationImpactHandbook.com

  11. Screen for impacts of Development

  12. Screen for impacts of Development Screen for impacts of Development

  13. The Users Perspective

  14. Automobile LOS A/B C/D E/F

  15. Modal LOSBicycle A/B C/D E/F

  16. Modal LOSPedestrian A/B C/D E/F

  17. Modal LOSBus A/B >4 buses/hour C/D 2 to 4 buses/hour < 1 bus/hour E/F

  18. Capacity/LOS Analyses and Evaluation Tools CORSIM (Microsimulation) TRANSYT-7F Potential Accuracy HCM | TCQSM BLOS | PLOS (Simple Operational Analysis) ARTPLAN FREEPLAN HIGHPLAN (Preliminary Engineering) Generalized Tables (Generalized Planning) Effort/Complexity

  19. Generalized Service Volume Tables… …provide estimates of maximum service volumes for various types of Florida road facilities …represent average roadway conditions for the state, not representative of any single roadway …allow analysts to quickly and easily compare volumes to estimate LOS.

  20. Types of Tables (mostly used in planning) • Daily Two-Way Urbanized Transitioning/Urban • Rural • (However, all are based on a peak hour peak direction analysis) • Peak Hour Two-Way Urbanized Transitioning/Urban Rural • Peak Hour Peak Direction Urbanized Transitioning/Urban Rural

  21. Service Volume Tables In General

  22. Potential Applications

  23. Table Exercise 1 • Determine the maximum service volumes • In terms of annual average daily traffic (AADT) volume • In an urbanized area • For a freeway with: • 6 lanes 95,400 LOS=C 122,700 LOS=E

  24. Capacity/LOS Analyses and Evaluation Tools CORSIM (Microsimulation) TRANSYT-7F Potential Accuracy HCM | TCQSM BLOS | PLOS (Simple Operational Analysis) ARTPLAN FREEPLAN HIGHPLAN (Preliminary Engineering) Generalized Tables (Generalized Planning) Effort/Complexity

  25. Demonstration Of LOSPLAN

  26. LOS Planning/Preliminary Engineering Toolswill be updated in 2012 2012 www.dot.state.fl.us/planning/systems/sm/los/

  27. Highway Capacity Manual Transition

  28. Presentation Purposes Highway Capacity Manual Past, Present & Future • Adopting the 2010 HCM • What Has To Change • Implementing the 2010 HCM • How Long Will It Take

  29. HCM/LOS History 1985: Refined LOS Direction 1965: LOS Concept 2010: Integrated Multimodal Perspective

  30. 2010 Highway Capacity Manual

  31. 2010 HCM Implementation Issues • Why Not Transition Immediately? • Consistency • LOS • Technical • Impacts “Standard K” Factors Rule Update Rules Policies Procedures Arterials Freeways Need for State-wide Consistent Response to Phasing in of 2010 HCM

  32. What is “Standard K”? • Rather than having “K” be a traffic variable, make it a fixed parameter based on: • Area Type • Facility Type “K” Factor: Ratio of peak hour traffic to AADT

  33. Importance of LOS Standards and K Factor

  34. 2 Arterial Classes 1 2

  35. Implementation Schedule July ‘11 January ‘12 July ‘12 December ‘12 Refine HCM Analyses Implement “Standard K” Factors Update LOS Standards Update Procedures & Guidelines Coordination, Transition & Adoption

  36. QUESTIONS?

  37. FDOT’s transition plan to the 2010 HCM represents a logical comprehensive process which includes evaluating a few key 2010 HCM changes, possibly implementing technical changes to current practice, possibly updating its level of service standards, and updating its own HCM-based software. FDOT recognizes it cannot require this transition period be applied to outside entities; however, it requests those entities accept this relatively short transition period.

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