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NCTC Traffic Model Update

NCTC Traffic Model Update. Year 2002 Calibration. Steps in Model Development. Aerial Photos from GIS Maps of Streets from GIS Assessor’s Parcel Data Traffic Analysis Zones Trip Generation Rates Productions and Attractions Trip Assignment Comparison to Existing Counts.

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NCTC Traffic Model Update

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  1. NCTC Traffic Model Update Year 2002 Calibration

  2. Steps in Model Development • Aerial Photos from GIS • Maps of Streets from GIS • Assessor’s Parcel Data • Traffic Analysis Zones • Trip Generation Rates • Productions and Attractions • Trip Assignment • Comparison to Existing Counts

  3. Aerial Photos from GIS

  4. Maps of Streets from GIS

  5. Assessor’s Parcel Data

  6. Traffic Analysis Zones

  7. Trip Generation Rates Trip Rate for Single Family = 0.9 pm trips/DU Trip Rate for Multi Family = 0.6 pm trip/DU Trip Rate for Church = 6.6 pm trips/acre Trip Rate for Commercial = 37.0 pm trips/acre Trip Rate for Elem School = 3.4 pm trips/acre Trip Rate for Fast Food = 291.3 pm trips/acre ETC

  8. Trip Assignment

  9. Comparison to Existing Counts

  10. Validation of Year 2002 Model • Do counts and model match? • Is Trip Generation reasonable? • Is Trip Assignment compatible with Census Surveys for home to work? • Meets CALTRANS’ Guidelines

  11. CALTRANS to Utilize NCTC Model • Forecast for Dorsey Interchange • Use in Design Process

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