1 / 12

REGIONAL TRAVEL DEMAND MODEL IMPROVEMENT PROJECT

REGIONAL TRAVEL DEMAND MODEL IMPROVEMENT PROJECT. An Update to The SCAG Regional Modeling Task Force By March 26, 2003. Presentation Overview. Project Scope Activity Update Common MPO Improvements Future Needs Short-Term Model Improvements Continuing & Future Activities. Project Scope.

chaeli
Download Presentation

REGIONAL TRAVEL DEMAND MODEL IMPROVEMENT PROJECT

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. REGIONAL TRAVEL DEMAND MODEL IMPROVEMENT PROJECT An Update to The SCAG Regional Modeling Task Force By March 26, 2003

  2. Presentation Overview • Project Scope • Activity Update • Common MPO Improvements • Future Needs • Short-Term Model Improvements • Continuing & Future Activities

  3. Project Scope • Purpose & Objectives • Technical Approach • Schedule

  4. Purpose & Objectives • Region’s growth outstripping current tools • Significant trade-offs must be considered • Enhance the model’s responsiveness • Improve the analysis of emerging issues • Increase utility for regional consistency

  5. Technical Approach • Review the previous improvement program • Inventory other MPOs’ programs • Identify future modeling needs • Review SCAG’s current regional model • Develop a short-term improvement program • Develop a long-range strategy • Assemble a model review panel • Coordinate with the Modeling Task Force • Prepare final report

  6. Original Schedule

  7. Activity Update • Other MPO Improvement Programs • 12 large MPO model improvement programs • Candidate Peer Review Panel members • Future Modeling Needs • Opportunities for improvement • Expanded modeling capability • Short-Term Model Improvements • Retain structure - model recalibration • Incremental component enhancement

  8. Baltimore (BMC) Boston (CTPS) Denver (DRCOG) Detroit (SEMCOG) Houston (HGAC) Los Angeles (SCAG) New York (NYMTC) Portland (Metro) Sacramento (SACOG) San Francisco (MTC) Seattle (PSRC) Washington (WashCOG) Recent ActivitiesMPOs Surveyed

  9. Transportation-Land Use Integration Volume-Delay Curves Trip Generation External Trips Trip Purpose Expansion Trip Distribution Models Destination-Choice Trip Distribution Models Mode Choice Models Nested Logit Models Zone Structure Revision Area Typology Truck Modeling Time of Day Modeling Peak Spreading Models Regional Travel Surveys Tour-based Activity Modeling Common MPO Improvements

  10. Future Needs • Implement sub-area modeling capability • Perform highway assignment validation for both volumes & speeds • Refine heavy duty truck model • Develop transportation-land use linkage • Improve HOV modeling • Link and inter-relate all modeling components • Improve data collection for modeling purposes

  11. Short-Term Improvements Recalibrate trip generation & distribution models Recalibrate mode choice model Revise highway network assignment Multimodal Highway Network Assignment Volume-Delay Curves Peak and Off-peak Network Refinement Heavy-Duty Truck Passenger Car Equivalents Supplemental Improvements Peak Spreading External Trips

  12. Continuing & Future Activities • Summarize Current Model Improvements • Procure Short-Term Model Improvements • Organize Model Review Panel Session • Develop Long-Range Improvements

More Related