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ARC’s Strategic Thoroughfare Plan Bridging the Gap from Travel Demand Model to Micro-Simulation

This presentation discusses the efficient implementation of Atlanta's arterial road network, including case studies and analysis methodologies.

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ARC’s Strategic Thoroughfare Plan Bridging the Gap from Travel Demand Model to Micro-Simulation

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  1. ARC’s Strategic Thoroughfare Plan Bridging the Gap from Travel Demand Model to Micro-Simulation GPA Conference Fall 2012 Presented By: David Pickworth, PE

  2. The Project • Arterials are the most challenged facilities in Atlanta • Competing travel interests • Cohesive planning, operations, and management EFFICIENT PROJECT IMPLEMENTATION

  3. Overall Project Goals • Prioritized arterial roadway network • Develop guidelines on management and design • Create a Geographic Database • Perform case studies to test concept designs

  4. Case Studies • Transportation Assessment for MMCS • 5 Case Study Corridors • Case Studies selected based on differing developments, area types, and roadway configurations

  5. Case Studies • Strategic Regional Thoroughfare Plan Case Studies • Aviation Blvd./Conley Rd. – Clayton County • Moreland Ave. – Fulton County • Memorial Dr. – DeKalb County • Roswell Rd. (SR 9) – Sandy Springs/Rowsell • McDonough Rd. (SR 155) – Henry County

  6. The Problem Regional Subarea Develop An Analysis Process That Maintains, And Is Consistent With, The Overall Travel Pattern Relationships Established In The Regional Travel Demand Model Through Several Levels of Analyses Corridor

  7. Analysis Provided Regional • Regional Travel Patterns Subarea • Establish Peak Period Travel Routes (DTA) Corridor • Detailed Transportation System Operations During Peak Hours • Highway • Transit • Pedestrians

  8. The Process Regional Travel Demand Model Application (Daily Trips) Extract Peak Period (AM and PM) Subarea Network and Trip Tables Traffic Counts VISSIM Model Network Development Matrix Variegation Procedure (Hourly Trips) Matrix Estimation Procedure (If Required) VISSIM Model Application Subarea DTA AM and PM Peak Period Assignments Peak Period (AM and PM) Traffic Assignments Evaluation Measures Extract AM and PM Peak Period Trip Tables For Corridor

  9. By Facility Type Evauation Measures • Study Area (AM & PM Peak Period) • Vehicle Miles of Travel (VMT) • Vehicle Hours of Travel (VHT) • Average Peak Period Speeds • Vehicle Hours of Delay • Corridor (AM & PM Peak Hour) • Average Speeds • Average Vehicle Delay (Seconds) • Approach & Intersection Level of Service (LOS) • Transit Boardings (Daily) • Queue Lengths

  10. Example Study Area Network Roswell Road (SR9)

  11. VISSIM Network Example Corridor Network (VISSIM) Memorial Drive Corridor

  12. Memorial Drive N. Hairston Raod Example Corridor Network (VISSIM) Memorial Drive Corridor

  13. Example Roswell Rd. Study Area DTA Assignment Animation

  14. Roswell Rd. Corridor Continuous Flow Intersection Concept Animation

  15. Roswell Road (SR 9) at Riverside Road/Azalea Drive 2040 PM Peak Hour RTP 2040 PM Peak Hour Scenario Improvement (Continuous Flow Intersection)

  16. Conclusion • Use regional travel demand model • Bridge the gap between different local agencies for consensus in development strategies • Using the appropriate tools to “funnel” travel demand down to peak hour microsimulation-level traffic • More information: www.atlantaregional.com

  17. Questions

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