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Travel Demand Modeling for analysis of Congestion Mitigation - - PowerPoint PPT Presentation
Travel Demand Modeling for analysis of Congestion Mitigation - - PowerPoint PPT Presentation
A GREENER GREATER NEW YORK Travel Demand Modeling for analysis of Congestion Mitigation policies October 24, 2007 Analyzing congestion mitigation measures Analyzing congestion mitigation measures How would alternative policies impact:
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Analyzing congestion mitigation measures Analyzing congestion mitigation measures Only a regional travel demand model like NYMTC’s Best Practices
Model (BPM) can answer these questions
Regional Travel Demand Models: Show how regional traffic and transit
flows respond to changing land use, infrastructure and toll policy conditions.
Modeling tools commonly used in EIS and site-specific studies
Microsimulations: Show how a fixed amount of traffic flows through a
corridor or network.
Intersection level analyses: Show the detailed operation of individual
intersections.
Only a regional travel demand model like NYMTC’s Best Practices
Model (BPM) can answer these questions
Regional Travel Demand Models: Show how regional traffic and transit
flows respond to changing land use, infrastructure and toll policy conditions.
Modeling tools commonly used in EIS and site-specific studies
Microsimulations: Show how a fixed amount of traffic flows through a
corridor or network.
Intersection level analyses: Show the detailed operation of individual
intersections.
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Best Practice Model (BPM) Development Best Practice Model (BPM) Development
Developed by New York Metropolitan Transportation Council
(NYMTC), the metropolitan planning organization, to meet the federal requirements for long-range planning.
Air quality conformity analysis Modeling impact of major infrastructure projects such as:
Tappan Zee Bridge and I-287 Corridor Study Goethals Bridge Modernization DEIS
Developed by New York Metropolitan Transportation Council
(NYMTC), the metropolitan planning organization, to meet the federal requirements for long-range planning.
Air quality conformity analysis Modeling impact of major infrastructure projects such as:
Tappan Zee Bridge and I-287 Corridor Study Goethals Bridge Modernization DEIS
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History of BPM History of BPM
28 counties in New York,
New Jersey and Connecticut
Model released 2002,
updated 2005
State-of-the-art travel
model
Only travel model in NY
region
28 counties in New York,
New Jersey and Connecticut
Model released 2002,
updated 2005
State-of-the-art travel
model
Only travel model in NY
region
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Key inputs Key inputs
Highways Arterial streets Transit 4,000 zones for trip origins
and destinations
Highways Arterial streets Transit 4,000 zones for trip origins
and destinations
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Key inputs Key inputs
2005 population and employment by zone 2005 transit network Tolls and fares and other travel costs Travel diary survey
11,264 households 27,369 persons 90,764 trips
2005 population and employment by zone 2005 transit network Tolls and fares and other travel costs Travel diary survey
11,264 households 27,369 persons 90,764 trips
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BPM structure and processes BPM structure and processes
Populates each zone with households and jobs Based on:
2005 population and employment
Populates each zone with households and jobs Based on:
2005 population and employment
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BPM structure and processes BPM structure and processes Creates daily “tours” and time period for each trip within the tour
Purposes:
Work University School Household maintenance (errands) Discretionary activities (leisure) Work-based (meetings, etc)
Based on:
Household characteristics (age, income, car ownership, etc.) Employment levels School enrollment Travel diary survey
Creates daily “tours” and time period for each trip within the tour
Purposes:
Work University School Household maintenance (errands) Discretionary activities (leisure) Work-based (meetings, etc)
Based on:
Household characteristics (age, income, car ownership, etc.) Employment levels School enrollment Travel diary survey Time periods:
AM Peak (6am-10am) Midday (10am-4pm) PM Peak (4pm-8pm) Night (8pm-6am)
Time periods:
AM Peak (6am-10am) Midday (10am-4pm) PM Peak (4pm-8pm) Night (8pm-6am)
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BPM structure and processes BPM structure and processes
Determines destinations for each tour Based on:
Employment locations Other destinations (shopping, etc.) Travel time, fares, congestion, tolls involved in reaching each
destination
Determines destinations for each tour Based on:
Employment locations Other destinations (shopping, etc.) Travel time, fares, congestion, tolls involved in reaching each
destination
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BPM structure and processes BPM structure and processes
Determines mode for each leg of tour
SOV HOV2, HOV3, HOV4+ Walk to transit Drive to transit
Based on:
Transit service levels Fares, tolls, parking and other driving costs Travel diary survey
Determines mode for each leg of tour
SOV HOV2, HOV3, HOV4+ Walk to transit Drive to transit
Based on:
Transit service levels Fares, tolls, parking and other driving costs Travel diary survey
Walk to commuter rail Drive to commuter rail Taxi School bus Non-motorized Walk to commuter rail Drive to commuter rail Taxi School bus Non-motorized
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BPM structure and processes BPM structure and processes
Determines route Based on:
Transit frequency Travel time Congestion
Determines route Based on:
Transit frequency Travel time Congestion
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BPM outputs BPM outputs
County-to-county trip flows
Trip purpose Time of day Mode
Traffic speeds and vehicle miles traveled (VMT) Air quality based on changes in vehicle volumes Results validated to:
Ground counts of traffic volumes Transit ridership
County-to-county trip flows
Trip purpose Time of day Mode
Traffic speeds and vehicle miles traveled (VMT) Air quality based on changes in vehicle volumes Results validated to:
Ground counts of traffic volumes Transit ridership
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BPM outputs BPM outputs
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