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Transportation Studies in the 21st Century: Incorporating all Modes

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Title: Transportation Studies in the 21st Century: Incorporating all Modes
Track: Sustain
Format: 90 minute panel
Abstract: In the 21st century, the basic purpose of transportation studies needs to change from making it easier to drive to giving people options other than driving. This session will present case studies of alternatives to the auto-dominated Level of Service traffic impact studies in order to better address bicycling, transit and walking.
Presenters:
Presenter: Michelle DeRobertis Transportation Choices for Sustainable Communities
Co-Presenter: Peter Albert San Francisco Municipal Transportation Agency
Co-Presenter: Patrick Lynch Transpo Group
Co-Presenter: David Thompson City of Boulder, Colorado

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Transportation Studies in the 21st Century: Incorporating all Modes

  1. 1. MULTIMODAL TRANSPORTATION CONCURRENCY IN BELLINGHAM, WASHINGTON PRO WALK PRO BIKE PRO PLACE PITTSBURGH – SEPTEMBER, 10 2014
  2. 2. •Overview of Bellingham, WA •How do you define success? •What you measure is what you get •Bellingham’s experience OUTLINE
  3. 3. BELLINGHAM, WA OVERVIEW
  4. 4. BELLINGHAM, WA •90 miles north of Seattle, WA •60 miles south of Vancouver, BC •Population – 83,000 •Western Washington University •Regional/Cultural center of Whatcom County
  5. 5. WHATCOM COUNTY 2010 EMPLOYMENT DENSITY
  6. 6. LAND USE •Urban & Suburban characteristics •Urban Villages •Comp Plan Land Use Element •Increased densities •Mixed-use •Walkable/bikeable •High-frequency transit
  7. 7. MODE SHIFT GOALS TG-28: Set target goals to increase the mode share of pedestrian, bicycle, and transit trips and reduce automobile trips as a percentage of total trips, as listed below. 2004 2010 2015 2022 Auto 87% 84% 80% 75% Transit 2% 3% 4% 6% Bicycle 3% 4% 5% 6% Pedestrian 8% 9% 11% 13%
  8. 8. DEVELOPMENT REVIEW ELEMENTS Developer Requirements/ Frontage Improvements State Environmental Policy Act (SEPA) Transportation Impact Fees (TIF) Timing and adequacy of facilities/services Concurrency
  9. 9. HOW DO YOU DEFINE SUCCESS?
  10. 10. MEASURING SUCCESS •Level of Service methodology •Roadway volume-to-capacity (v/c) •Intersection delay •Corridor travel time •Vehicle miles travel •Other •Each method measures “success” differently
  11. 11. TRADITIONAL THINKING
  12. 12. TRADITIONAL THINKING Public Experience: Traffic Engineering Grade Report Cards LOS Demand vs. Supply Highway Capacity Manual letter value LOS classifications contribute to public confusion and controversy
  13. 13. WHAT YOU MEASURE IS WHAT YOU GET
  14. 14. SYSTEM PERFORMANCE METRICS Inadequate Metrics results in Inadequate Outcomes •Tie to land use plan •Plan for all modes •Apply metrics
  15. 15. •Support overall mobility? •Consistent with future land use plans? •Additional data/staff resources needed? BALANCING OBJECTIVES
  16. 16. THE BELLINGHAM EXPERIENCE
  17. 17. •CSA = “Mobility sheds” •Based on land use context •Three types Type 1 - Urban Villages Type 1A - Urban Institutional Type 2 - Transition Type 3 - Suburban CONCURRENCY SERVICE AREAS
  18. 18. •Policy Dials •Mode Weight Factors •Based on Land Use Typology CONCURRENCY SERVICE AREAS Transportation Concurrency Service Areas Mode Type 11 Type 22 Type 33 Motorized Auto Mode weight factor4 0.70 0.80 0.90 Transit Mode weight factor5 1.00 1.00 0.80 Non-Motorized Pedestrian Percent threshold for minimum system complete6 50% 50% 50% Person trip credit for 1% greater than minimum threshold7 20 20 20 Mode weight factor8 1.00 0.90 0.80 Bicycle Percent threshold for minimum system complete 50% 50% 50% Person trip credit for 1% greater than threshold 20 20 20 Mode weight factor9 1.00 0.90 0.80 Multi-Use Trails10 Person trip credit for 1% greater than threshold11 10 10 10 Mode weight factor12 1.00 0.90 0.80
  19. 19. PEDESTRIAN & BICYCLE NETWORKS
  20. 20. •Annual Calculation •Motorized & Non-Motorized modes •Person Trips Available by Service Area PERSON TRIPS AVAILABLE Define Concurrency Service Areas, Corridors, & Measurement Points Collect Demand & Supply Data of Motorized Modes Calculate Concurrency Service Area Total Person Trips Available Calculate Available Person Trips for Auto & Transit Modes Collect Data of Existing & Planned Non-Motorized Facilities Calculate Credit Person Trips of Non-Motorized Facilities Motorized Modes (Auto & Transit) Non-Motorized Facilities (Bicycle, Sidewalk, Trail) Draw Down Available Person Trips in each Impacted Concurrency Service Area for each Concurrency Application
  21. 21. TRACKING LEDGER •Spreadsheet tool •Drawdown ledger •Reporting tool
  22. 22. ANNUAL REPORTING •Provides “over horizon” view •Informs 6-year TIP •Communicates system performance goals and metrics
  23. 23. •There is no magic “one-size-fits-all” methodology •Balance competing objectives •Create tools and metrics to help accomplish what your community wants for the long term SUMMARY
  24. 24. Thank You Patrick Lynch, AICP Patrick.Lynch@transpogroup.com 425.821.3665 For more information www.cob.org/services/planning/transportation/multi-modal-trac.aspx

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