presented to

MTF Transit Committee

presented by

David Schmitt, AICP

November 20, 2008

FSUTMS Transit Model Application

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The Transit Model Application

“Ready to go” FSUTMS-Voyager application of the Transit Model that includes all of the model elements in the framework

• Speeds * Connectors Pathbuilding

• Mode Choice Assignment Reporting

• Mode Choice Calibration * Summit data files

Avoids scripting framework elements, allowing the user to focus on localized attributes such as transit speeds and mode choice calibration

Tier A, B and C areas (covers all areas except for SERPM)

Released September 2008

* - requires scripting/information from user

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Installing the Transit Model Application

1. Import the transit model into the travel demand model

2. Review the modules with the transit model

3. Connect input and output files from the model to the files in the transit model

4. Modify the catalog keys, appropriate scripts and input files

5. For the base year, calibrate the auto and transit speeds (or travel times) and compare them against observed data

6. Calibrate the mode choice model for the base year

7. Validated the base year transit assignments by comparing them to observed counts

8. Test the transit model against at least one future alternative to assess its forecasting ability

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Importing the Transit Model Application

Download the model from FSUTMSOnline

Open the transit model application in CUBE Voyager

Create new directory and save it in the applications folder of the model

Close the application

Importing the Transit Model Application (Contd.)

Open the model into which transit model application needs to be imported

Insert the transit model application group

Change the execution order of the transit model step so that it is run after the trip distribution step

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Transit Model Application

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Transit Prep Step

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Default speeds set to auto speeds. Speed curves need to be defined and applied in these steps

The default mode numbers used in the model are 21-27. If additional modes are defined, transit travel times must be added for those modes in these steps

Changes in Transit Prep Step Scripts (Example)

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Transit Paths Step

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If additional modes are defined, transit travel times for those modes must be added for pathbuilding and transit skim calculations in these steps

Changes in Transit Paths Step Scripts (Example)

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Path Building: Modes Used in Different Paths

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ModePath

Walk-to-bus

Walk-to-project

Drive-to-bus

Drive-to-project

Access mode

Walk access Auto access

Transit mode

Local bus Premium bus Circulators Urban rail Commuter rail “Other” mode Project mode

Mode Choice Model Step

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By default, only one set of trip generation rates is used.If the model

area consists of regions with

different trip generation

rates, they can be

accommodated in this step to calculate auto

ownership percentage by

TAZ

Default ZDATA file variables

are used in this step and may

need to be changed

Mode Choice Summary Report

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Mode Choice Structure (Tier A)

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Auto Transit

Drive Alone Shared Ride Walk Park and Ride Kiss and Ride

Shared Ride 2 Shared Ride 3+

Person Trips

Utility Components of Mode Choice (Tier A)

Component

Term appears in utility calculationDrive alone

Shared Ride WalkBus

Park-and-rideBus

Kiss-and-rideBusDA SR2 SR3+

Bias constant Terminal time

Auto in-vehicle time

Auto access time

Toll cost

Auto parking cost

Auto operating cost

Walk and transfer time

Initial and transfer wait

Transit-in-vehicle time

Number of transfers

Transit fare 15

Mode Choice Structure (Tier B/C)

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Auto Transit

WalkDrive Alone Shared Ride

Shared Ride 2 Shared Ride 3+

Park and Ride Kiss and Ride

Bus Project Bus Project Bus Project

Person Trips

Utility Components of Mode Choice (Tier B/C)

Component

Term appears in utility calculationDrive alone

Shared Ride Walk Park-and-ride Kiss-and-ride

DA SR2 SR3+ Bus Project Bus Project Bus ProjectBias constant Terminal time

Auto in-vehicle time

Auto access time

Toll cost

Auto parking cost

Auto operating cost

Walk and transfer time

Initial and transfer wait

Transit-in-vehicle time

Number of transfers

Transit fare CBD dummy Exurban production dummy

Exurban attraction dummy 17

Transit Assignment Step

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Transit Reporting Step

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Transit Assignment Summary Report

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Transit Assignment Route Level Report

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Station Activity Report

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Network Volume Report

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Shows transit volume on each street (thickness of the band width increases with increasing transit volume)

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Downloading the Transit Model Application

The Applications, Application Guide and Development Guide can be downloaded at:

• http://www.fsutmsonline.net/index.php?/transit_modeling/comments/update_notes_october_30_2008/

• (FSUTMSOnline > Standards and Documentation > Update FSUTMS Transit Modeling Framework)

The Application Guide provides detailed instructions for importing the transit model into a travel demand model

The Development Guide describes the methodology

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Thank you!