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

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Presentation on theme: "Traffic Analysis Toolbox & Highway Capacity Manual Transition Tyrone Scorsone FDOT Systems Planning."— Presentation transcript:

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

2 Transportation Research Boards (TRB) Highway Capacity Manual (HCM) 2

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

4 Advantages of Analytical/Deterministic Tools Quickly predict impacts Widely accepted 4

5 LOS Planning/Preliminary Engineering Tools 5 Preliminary Engineering Software Generalized Planning Tables

6 6

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

8 Exporting Data to Highway Capacity Software (HCS) 8

9 Planning Uses of LOS Techniques Initial problem identification Delay calculation Future year analysis Conducting alternatives analyses Assessing development impacts 9

10 Primary Uses of LOS Techniques 10 Site Impact Project Development Future Year Analysis OtherOther

11 Transportation Impact Handbook 11 FDOTTransportationImpactHandbook.com

12 12 Screen for impacts of Development

13 13 Screen for impacts of Development

14 The Users Perspective 14

15 Automobile LOS A/B E/F C/D 15

16 Modal LOS Bicycle A/B E/F C/D 16

17 Modal LOS Pedestrian A/B E/F C/D 17

18 Modal LOS Bus 2 to 4 buses/hour < 1 bus/hour >4 buses/hour A/B E/F C/D 18

19 Capacity/LOS Analyses and Evaluation Tools 19 Potential Accuracy Generalized Tables ARTPLAN FREEPLAN HIGHPLAN HCM | TCQSM BLOS | PLOS TRANSYT-7F CORSIM (Generalized Planning) (Preliminary Engineering) (Simple Operational Analysis) (Microsimulation) Effort/Complexity

20 Generalized Service Volume Tables… 20 …allow analysts to quickly and easily compare volumes to estimate LOS. …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

21 Types of Tables 21 Peak Hour Peak Direction Urbanized Transitioning/Urban Rural Peak Hour Two-Way Urbanized Transitioning/Urban Rural Daily Two-Way Urbanized Transitioning/Urban Rural (However, all are based on a peak hour peak direction analysis) (mostly used in planning)

22 Service Volume Tables In General 22

23 Potential Applications Quick estimate of LOSIs there a problem?System adequacyTravel demand modelsRoadway quick sizing 23

24 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 24 LOS=C LOS=E 95, ,700

25 Capacity/LOS Analyses and Evaluation Tools 25 Potential Accuracy Generalized Tables ARTPLAN FREEPLAN HIGHPLAN HCM | TCQSM BLOS | PLOS TRANSYT-7F CORSIM (Generalized Planning) (Preliminary Engineering) (Simple Operational Analysis) (Microsimulation) Effort/Complexity

26 Demonstration Of LOSPLAN 26

27 LOS Planning/Preliminary Engineering Tools will be updated in

28 Highway Capacity Manual Transition 28

29 Implementing the 2010 HCM How Long Will It Take Implementing the 2010 HCM How Long Will It Take Presentation Purposes 29 Highway Capacity Manual Past, Present & Future Highway Capacity Manual Past, Present & Future Adopting the 2010 HCM What Has To Change Adopting the 2010 HCM What Has To Change

30 2010: Integrated Multimodal Perspective 2010: Integrated Multimodal Perspective HCM/LOS History 1965: LOS Concept 1965: LOS Concept 1985: Refined LOS Direction 1985: Refined LOS Direction 30

31 2010 Highway Capacity Manual 2010 HCM To be published this month Replaces 2000 HCM Significant changes New arterial performance measure Multimodal When to phase in? Receiving implementation inquiries 31

32 Why Not Transition Immediately? Need for State-wide Consistent Response to Phasing in of 2010 HCM Need for State-wide Consistent Response to Phasing in of 2010 HCM Rules Policies Procedures Rules Policies Procedures Arterials Freeways Arterials Freeways Standard K Factors Rule Update Standard K Factors Rule Update 2010 HCM Implementation Issues Consistency Impacts Technical LOS 32

33 What is Standard K? 33 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

34 Importance of LOS Standards and K Factor 34 Time and cost savings to FDOT Update to latest research Promotes Better Transportation Within Department Throughout development community Simple to understand Consistency: Planning Through Design Positive for Development Supportive of Growth Management Sensible Approach

35 2 Arterial Classes 12 35

36 Implementation Schedule Refine HCM Analyses Implement Standard K Factors Update LOS Standards Update Procedures & Guidelines Coordination, Transition & Adoption Coordination, Transition & Adoption July 11 January 12 July 12 December 12 36

37 QUESTIONS? 37

38 FDOTs 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. 38

39 Fig PedestrianAutomobileBicycleBus A/B Level of Service 2 to 4 buses/hour < 1 bus/hour E/F C/D >4 buses/hour 39


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