Ministry of Transportation / Ministère des Transports
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Guidelines for the Preparation of Traffic Impact Studies

List of Possible Items for Discussion during Pre-submission Communications

  • Road jurisdictions and responsibilities where more than one road authority is involved
  • Extent of study area, including specific interchanges and intersections to include in analysis
  • Appropriate study horizon years to consider for multi-staged development
  • Appropriate analysis periods for proposed development (for example AM peak, PM peak, Saturday peak, summer weekday, etc.)
  • Suitability of non-MTO data sources
  • Suitability of rates for forecasting background traffic growth
  • Developments that need to be included in background traffic forecasts
  • Site plan considerations such as access locations
  • Trip generation data source and estimation method (for example ITE Trip Generation rate vs. ITE Trip Generation equation vs. locally observed rate) for less typical uses
  • Trip distribution and route assignment prediction methods and assumptions for more complex developments or road networks
  • Sources and assumptions for trip pass-by or interaction rates where the complexity of the development requires these
  • Methodology for predicting signal justification for forecast traffic volumes
  • Software to use for capacity analysis, and assumptions and parameters to apply for the agreed upon software tool
  • Methodology and/or software to use for evaluating storage lane length requirements
  • Potential MTO work projects, preliminary design studies, planning studies, in the study area
  • Access management best practices