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Downtown Vancouver Transportation and Emergency Management System (DVTEMS)

Downtown Vancouver Transportation and Emergency Management System (DVTEMS). PTV Vision User‘s Group Meeting. Karen Giese Kean Lew. Outline. Project Background Custom Interactions Model Demonstration. Project Background. What is DVTEMS?. Planning level travel demand model

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Downtown Vancouver Transportation and Emergency Management System (DVTEMS)

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  1. Downtown Vancouver Transportation and Emergency Management System (DVTEMS) PTV Vision User‘s Group Meeting Karen Giese Kean Lew

  2. Outline • Project Background • Custom Interactions • Model Demonstration

  3. Project Background

  4. What is DVTEMS? Planning level travel demand model Focus on pedestrian route choice Based on the VISUM platform Custom pedestrian & pedestrian-vehicle interactions Communication through visual platform Quantitative analysis

  5. Dynamic Assignment DVTEMS Uses Dynamic Assignment (DUE) Key Benefits • Accounts for Capacity Constraints • Models Proper Interaction of Real Flows • Models Impacts of Short-Term Measures • Accounts for Special Event Temporal Characteristics

  6. Custom Interactions • Two-way Pedestrian Capacity • Allows Pedestrians to Utilize Both Sidewalks Along Street • Vehicle-Pedestrian Interaction at Intersections • Uses Actual Crosswalk Flows from Assignment • Pedestrian Inundation • Pedestrians Encroach on Vehicle Space • Vehicle Capacity Decreased • User-defined Parameters

  7. Capacity 1 Capacity 2 Two-Way Sidewalk Capacity

  8. Capacity North Sidewalk Capacity South Sidewalk Two-Way Sidewalk Capacity

  9. Capacity 1 = Capacity North Sidewalk + Capacity South Sidewalk Capacity 2 = Capacity North Sidewalk + Capacity South Sidewalk Two-Way Sidewalk Capacity Iteration 1

  10. Capacity 1 = Volume Westbound / Volume Both Dir * Two Way Capacity Capacity 2 = Volume Eastbound / Volume Both Dir * Two Way Capacity Two-Way Sidewalk Capacity Until Converges Iteration 2 onwards

  11. ped volume Vehicle-Pedestrian Interaction at Intersections Car Turn Capacity = f (ped volume)

  12. Pedestrian Inundation Pedestrian Encroachment on Vehicle Lane(s) • Parameters to be User-Defined (On or Off): • Inundation Allowed (Global Setting) • Pedestrian Link Inverse Density Threshold for Inundation (Global Setting) • On-Street Parking Allowed (Link Setting) • Pedestrian Allowed On Road (Link Setting)

  13. Pedestrian Inundation Link Density < Inundation Threshold Link Density > Inundation Threshold Link Inverse Density > Inundation Threshold

  14. Pedestrian Inundation Link Inverse Density > Inundation Threshold Capacity Required by Inundation

  15. ped volume Pedestrian Inundation Link Inverse Density > Inundation Threshold

  16. Pedestrian Inundation Link Inverse Density > Inundation Threshold Car Capacity = f (inundation capacity required)

  17. Output • Volume by Time Interval and Mode • Pedestrian Density by Time Interval • Pedestrian Level of Service by Time Interval • Inundation Occurrence (Link Density > threshold and parameters allow for inundation) • Travel Times To/From Stadium by Mode

  18. Example Scenario Results: Volumes, Density, LOS Over Time Event 1 Start: 19:00 Pre-Event 2 Start: 18:50 Event 2 Start: 21:00 18:45

  19. Example Scenario Results: Volumes, Density, LOS Over Time Event 1 End: 21:30 Event 2 End: 23:00 23:30

  20. Example Scenario Results: Link Closure 19:15

  21. www.ptvamerica.com Questions and Discussion Thank you for your attention.

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