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Development of A Traffic Monitoring Program Using Emme 3 Based on A San Joaquin COG Travel Demand Model

Development of A Traffic Monitoring Program Using Emme 3 Based on A San Joaquin COG Travel Demand Model. Jia Hao Wu, Ph.D., Joy Bhattacharya, P.E. and Chris Kinzel. P.E. TJKM Transportation Consultants, Pleasanton, California, USA. 20 th International Emme Users’ Conference

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Development of A Traffic Monitoring Program Using Emme 3 Based on A San Joaquin COG Travel Demand Model

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  1. Development of A Traffic Monitoring Program Using Emme 3 Based on A San Joaquin COG Travel Demand Model Jia Hao Wu, Ph.D., Joy Bhattacharya, P.E. and Chris Kinzel. P.E. TJKM Transportation Consultants, Pleasanton, California, USA 20th International Emme Users’ Conference Montreal, October 18 to 20, 2006

  2. Outline • City of Lathrop Background • Objectives • Emme 3 Implementation • Results • Conclusions

  3. 1.5 hours from San Francisco • Population: 12,500 • Buildout Population: 70,000 • Fastest Growing in California • Most Comprehensive EIR • New Development Pop: 50,000

  4. New Developments • River Islands at Lathrop • 11,000 residential units • 17,000 new jobs • Mossdale South and West Villages • 2,500 residential units • 27 acres services and 1 million square feet of retail/office • Central Lathrop Specific Plan • 6,800 residential units • 4.5 million square feet of offices We developed traffic models for all of these new developments for environment impact studies.

  5. Traffic Monitoring Program • Determine the circulation needs for traffic circulation improvements • Satisfy the conditions of approval for new developments • Identify any intersection level of services • Determine mitigation measures • Update on an annual basis • Years: 2006,2008,2010 and 2012

  6. Level of Service • Level of Service (LOS) is a qualitative index of the performance of an intersection in the transportation system   • LOS is based on 2000 Highway Capacity Manual published by the Transportation Research Board

  7. Three Highway Interchanges We developed traffic models for all of these new developments for environment impact studies

  8. Intersection Lane Geometry – Existing (Year 2006) Conditions

  9. Turn Volumes AM and PM – Existing (Year 2006) Conditions

  10. Level of Service – Existing (Year 2006) Conditions

  11. Demand Forecasting Process • San Joaquin Council Governments Travel Demand Forecasting Model was used in CUBE/TP+ • Emme 3 was used for a detailed analysis, since it was used for the model calibration at the turning movement level • Turn counts at the study intersections were entered into Emme 3 for the model calibration • The difference method was used • Road network and land use data were updated

  12. City of Lathrop General Plan as A Background

  13. River Island Development Plan

  14. Employments Dwelling Units

  15. Year 2012 Peak Hour Turning Movement Volumes

  16. Lane Geometry

  17. Recommended Roadway Phasing

  18. Recommendations • Recommendations for Existing Conditions • Recommendations for 2008 (Two-year look) • Recommendations for 2010 (Four-year look) • Recommendations for 2012 (Six-year look)

  19. Conclusions • Emme 3 was used for the monitoring programs • Worked with Synchro • A wish list for display results in Emme 3 with many symbols and LOS

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