Border Freight Scoping Study


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Border Freight Scoping Study


Freight Scoping Study

  • A three month effort

    • Late September – December 2006.
    • Funded by Section 5512 of SAFETEA-LU (TRANSIMS development)
    • Sponsored by the U.S. Federal Highway Administration
  • Objectives

    • Articulate the freight issues in Buffalo-Niagara Falls area, and the decisions to be supported by improved modeling
    • Identify available data for a freight model
    • Outline how TRANSIMS might be adapted for the regional simulation of freight


Presentation Outline

  • What is the Transportation Analysis Simulation System (TRANSIMS)

  • Findings to date

    • Freight issues
    • Decisions to be supported by improved modeling
    • Data to support an improved model


TRANSIMS

  • Microsimulation model

  • Differences from conventional 4-step

    • Simulation of individual entities
      • e.g., households or freight movements
    • Generation of tours
    • Not tied to
      • Traffic Analysis Zones (TAZ)
      • Time-of-day buckets
    • Detailed modeling of highways and intersections
  • But, any model is only as good as the available data



Freight Issues

  • Cross-Border and Domestic

  • Freight Growth

    • NAFTA
    • Feeder port possibility
  • Primary mode is truck

  • Increasing need for reliable travel times

  • Congestion



Cross-Border Congestion

  • Issues

  • Two crossings for commercial vehicles

  • NAFTA impact on commercial traffic

  • Congestion at borders and on highways

  • Security concerns



U.S. Domestic Issues

  • Economic Growth

  • Congestion

    • Grand Island Bridges
      • Narrow lanes
      • Steep grade
    • I 90 / I 290 Interchange
  • Non-freeway movements

    • Route 219
    • Route 63


Decisions to be Supported

  • Peace Bridge and Plaza

  • Improvements •



Data: Freight Movements

  • Internal vs. External

  • Cross-border vs. domestic

  • X-X

    • CCMTA National Roadside Study
    • Regional models (e.g., FAF)
  • X-I

    • CCMTA National Roadside Study
    • Regional models (e.g., FAF)
    • Local economic forecasts
    • Local origins/destinations
  • I-I

    • Urban goods movement
      • e.g., warehouse to retail


Data: Traffic Flows

  • All traffic

    • Existing regional model as a source of data
    • Background congestion
  • Truck traffic

  • Sources

    • Satellite tracking of trucks
    • Toll counts (classification)
    • Other traffic counts, including classification
    • Turning movement counts


Data: Highway Network

  • Four-step model

    • Link capacities
  • Microsimulation model

    • Intersection capacity
      • Signals
      • Turning lanes
    • Road physical characteristics
    • Barriers
      • Tolls, border crossings


Topics for Discussion

  • Issues affecting freight movements

  • Decisions to be supported

  • Scope of a planning model

    • Domestic with cross-border coordination
    • Bi-national
  • Data sources for traffic growth and mode split

  • Data sources for origin-destination movements

  • Data for modeling the highway network

  • Classification counts for calibration and validation



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