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
OutlineCity of Lathrop BackgroundObjectivesEmme 3 ImplementationResultsConclusions
1.5 hours from San FranciscoPopulation: 12,500Buildout Population: 70,000Fastest Growing in CaliforniaMost Comprehensive EIRNew Development Pop: 50,000
New DevelopmentsRiver Islands at Lathrop
11,000 residential units 17,000 new jobs
Mossdale South and West Villages 2,500 residential units27 acres services and 1 million square feet of retail/office
Central Lathrop Specific Plan6,800 residential units4.5 million square feet of offices
We developed traffic models for all of these new developments for environment impact studies.
Traffic Monitoring ProgramDetermine the circulation needs for traffic circulation improvements Satisfy the conditions of approval for new developments Identify any intersection level of servicesDetermine mitigation measuresUpdate on an annual basisYears: 2006,2008,2010 and 2012
Level of ServiceLevel 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
We developed traffic models for all of these new developments for environment impact studies
Three Highway Interchanges
Intersection Lane Geometry – Existing (Year 2006) Conditions
Turn Volumes AM and PM – Existing (Year 2006) Conditions
Level of Service – Existing (Year 2006) Conditions
Demand Forecasting ProcessSan 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 levelTurn counts at the study intersections were entered into Emme 3 for the model calibrationThe difference method was used Road network and land use data were updated
City of Lathrop General Plan as A Background
River Island Development Plan
Dwelling Units Employments
Year 2012 Peak Hour Turning Movement Volumes
Lane Geometry
Recommended Roadway Phasing
RecommendationsRecommendations for Existing Conditions Recommendations for 2008 (Two-year look) Recommendations for 2010 (Four-year look)Recommendations for 2012 (Six-year look)
Conclusions
Emme 3 was used for the monitoring programs Worked with SynchroA wish list for display results in Emme 3 with many symbols and LOS
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