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Transportation Planning. Modeling with EMME/2. Interconnectedness. Agencies Running The MAG Model. Maricopa County Regional Public Transportation Authority Scottsdale Tempe. Agencies Supported. Buckeye Chandler Fountain Hills Phoenix ADOT Gila River Indian Community Gilbert

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Transportation planning l.jpg

Transportation Planning

Modeling with EMME/2



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Agencies Running The MAG Model

  • Maricopa County

  • Regional Public Transportation Authority

  • Scottsdale

  • Tempe


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Agencies Supported

  • Buckeye

  • Chandler

  • Fountain Hills

  • Phoenix

  • ADOT

  • Gila River Indian Community

  • Gilbert

  • Glendale

  • Goodyear

  • Mesa

  • Pima Association of governments

  • Peoria

  • Phoenix

  • Pima-Maricopa Indian Community

  • US HUD


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Components

  • Transportation Model

  • Land Use

  • Highway Network

  • Transit Network

  • Documentation


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Major Updates

  • 1984 Travel Demand Model (UTPS)

    • 1979 Travel Speed Study

    • 1980 On-Board Bus Survey

    • 1981 Home Interview Survey

  • 1990 Travel Model Update (UTPS)

    • 1986 On-Board Bus Survey

    • 1986 Travel Speed Study

    • 1989 Home Interview Survey

  • 1995 Conversion to EMME2 and Model Update

    • 1989 Home Interview

    • 1991 On-Board Bus Survey

    • 1993 Travel Speed Study


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Recent Improvements

  • Feedback to Trip Distribution

  • HOV Modeling

  • Graphics

  • Model Flexibility

  • Remote Access


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Socioeconomic Variables

  • Residential

    • Location

    • Household Income

    • Auto Ownership

  • Employment

    • Location

    • Type


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Modeled Area

  • Area is 60 x90 miles

  • 29 Member Agencies

  • 1541 Transportation Analysis Zones


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Modeled Area

  • Area is 60 x90 miles

  • 29 Member Agencies

  • 1541 Transportation Analysis Zones




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Trip Purpose Stratification

  • Home-Based Work

    • Income Group Stratification

  • Home-Based Shopping

  • Home-Based Other

  • Home-Based School

    • Elementary/Secondary

    • Arizona State University

    • Other University

  • Non-Home Based

    • Non-Home-Based Other

    • Non-Home-Based Work


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Trip Generation

  • Trip Production

    • j = f (Household size j, Household income j)

  • Trip Attraction

    • j = f (Retail Employment j, other employment j, households j)



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Network Level of Service

  • Highway

    • Travel distance ij

    • Travel time ij

    • Travel Cost

  • Transit

    • Walk time ij

    • First wait ij

    • In-vehicle time ij

    • Transfer time ij

    • Fare ij

    • Number of transfers

    • Drive access areas

    • Walk access areas


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Trip Distribution

Pi(Aj x Fij)

S (Aj x Fij)

Tij =

Tij = Trips from Zone i to Zone j Aj = trip Attraction in Zone j

Pi = Trip Production in Zone i Fij =Effect of travel time & distance

between Zone i & Zone j





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Multinomial Logit Structure

Choice

Transit Walk

Transit Drive

Drive Alone

Shared Ride

Access

Access

2 Occupants

3 Occupants

4+ Occupants


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Mode Choice

Pij = Probability of using transit for a trip between Zone i to Zone j

Transit untilityij = f (transit level of serviceij , incomei )

Auto utilityij = f (highway level of service ij , income ij


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Home Based Work

Observed vs. Estimated Trips by Mode


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Home Based Non-Work

Observed vs. Estimated Trips by Mode


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Non-home Based

Observed vs. Estimated Trips by Mode


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Transit Trips

Thousands




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1980 Weekday 24-hour Counts

I-10: East of 40th Street



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Highway Travel Forecasting

Accuracy of Models in Phoenix and Other Planning Areas






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Carbon Monoxide Concentrations

Projected for December 1995


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1995 Freeway Traffic

AWDT Volumes (000) and V/C Ratios

Based on 1995 HOV

Traffic Assignment

and Freeway Management System Counts


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Current Projects

  • Updating Documentation

  • External Travel Survey

  • Household Travel Survey

  • Changing to New Computers


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Transportation Planning

Modeling with EMME/2