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The TBEST Framework for Data Analysis and Forecasting
September 17, 2013Center for Urban Transportation Research | University of South Florida
TBEST
Transit Demand Modeling/Analysis Software developed bythe Florida Department of Transportation Office of Freight, Logistics and Passenger Operations
FDOT GoalProvide a “Comprehensive Transit Network Modeling, Management and Analysis Software with a focus on short to mid-term transit planning available to all Florida transit agencies”
Support Agency Transit Development Plans (TDP):
TBEST is an FDOT approved ridership estimation methodology
Transit Boardings Estimation and Simulation Tool
TBEST UtilizationProvide workflow support for the following:• Service Planning• Comprehensive Operational Analysis
(COA)• Grant Applications• FTA Title VI Analysis• Mobility Studies• NTD Route Miles• Market Analysis• Network Accessibility
Operations
HastusTrapezeOthers…
Short and mid-term
TBEST
Long Range
Cube Voyager
TransCADOthers…
Transit Planning/Forecasting Software
Framework Components
• Model Development• Application• Analysis• Reporting and Output
Managing Components
TBEST Transit System • Composed of model scenarios
which contain editable routes, stops, socio-economic data and network attributes
• All GIS/database files managed internally
• Download pre-formatted SE data
• Managed Model Validation
• Customizable model structure
• Easily create current or future year scenarios
Transit Data Management
Supporting Data
Dataset Source FDOT Provided
Socio-Demographic Census 2010 and ACSEmployment InfoUSA (or local zonal data)Land Use (Parcel-Level) Florida Department of
RevenueNetwork Download or GTFSSpecial Generators AgencySocio-Economic Growth Rates Bureau of Economic and
Business Research
Observed Ridership for Validation
Agency
TBEST GIS Specifications
• Desktop application requiring ArcGIS 10.1 Basic license • Utilizes ArcGIS Engine for map display, spatial analysis and
network editing• ESRI personal geodatabase stores transit layers and socio-
economic data geometry• Demographics, service characteristics, and model output
stored in SQL Server 2008 R2 (Express or Enterprise editions)• No Network Analyst or ArcSDE required• Utilizes ESRI Map Services, Bing Maps or preformatted .mxd
for base map• No fee for TBEST except ArcGIS license
Model Specifications• Micro-level model which simulates transit ridership at the level
of the individual stop: by route, direction and time period • Designed to capture both walk market and network
accessibility• Model equations estimate direct and transfer boardings• Accommodate service features of fare, speed, frequency, etc.• Accommodate fundamental differences in route types (local,
circulator, express)• Model validation process allows TBEST to adapt to different
urban locations without developing new model equations (transferable)
Model EquationsUsers are able to maintain multiple model structures which can be applied to model scenarios
TBEST is installed with two model structures, the classic TBEST Model which utilizesthe Census and Employment data and the new TBEST Land Use Model which includes trip-generation from parcel land use data.
New models coming online in Los Angeles and Oregon– LA model will include specific equations for Bus and Rail– Oregon model will include customization of the parcel level land use
model
Available Models
BRT SensitivityTBEST now supports BRT route definition and model sensitivity
How it worksUsers specify the implementation level of specific route-level BRT characteristics and TBEST will adjust base ridership forecasts with an empirically derived adjustment factor
Network Interoperability
• GTFS Import– Imported networks for all FL agencies with
GTFS feeds– Also used nationally in Ft. Worth, Portland,
Los Angeles, Savannah• GTFS Export
– Export TBEST network into GTFS– Added TBEST attributes to exported data
including ridership and stop amenities• ArcGIS
– Export TBEST maps and data into ArcGIS– Import route alignments into TBEST from
outside data sources– Export “loaded networks” into geodatabases
Scenario Modifications
Service Supply Adjustments
Category Changes
Operating Strategies
Headway Adjustment
Short TurningRoute Splitting
Through Routing
Schedule Changes
Running Time Adjustments
Schedule Coordination between Routes
Span of Service Adjustments
Alignment Changes
Extend Routes
Shorten Routes
New Routes
System ChangesService Redistribution
Network Structure
Fare PolicyFirst-Boarding Fare
Transfer Fare
Socio-Economic Forecasts System level, Zonal level, DRI/Corridor level, Route, Segment or Stop level
Demand Adjustments
Model ReportingStop, Segment, Route and Regional distribution reports with supporting maps
Model ReportingScenario Comparison and Mobility Threshold service recommendations
Model ReportingTDP Summary Report
Summarizes annual service area pop, employment, performance, and service for all scenarios in a TBEST transit system
Market Analysis• Works to summarize the intensity and distribution of
land use, socio-economic, and employment data for a given transit market in a current year or future year socio-economic setting
• Performed on existing or proposed network structure or within specific DRI’s/corridors to determine the viability of transit options in the area
• Independent of the TBEST modeling capabilities
Market AnalysisLand Use Market Analysis
Market AnalysisSocio-Economic Market Analysis
Market AnalysisFTA Title VI Analysis
Network Accessibility Analysis
• Combines TBEST transit networking origin/destination capabilities with market and model results to produce an interactive summarization of network accessible markets and model output
• Network Accessibility Build - core of the accessibility calculation which populates an origin/destination matrix for each stop in the network
• Summarizes both outflow and inflow markets and ridership from a selected stop, multiple stops or from a geographic area by time of day
• Filter results by trip time and number of transfers
Network Accessibility Analysis
Network Accessible Market Analysis
Implementation Results
Win-Win-Win SituationFDOT standardized model platform for consistent TDP ridership reporting across agencies
Agencies have a pre-built methodology for estimating ridership + multiple workflow support
Consultants using TBEST for TDP, COA, etc. have an easy-to-implement ridership estimation solution with available data, tools and modeling capabilities
Steps UnderwaySeptember 2013
– Release TBEST 4.1– Contains online Video Tutorials – Classroom training early 2014
January 2014– Enhanced FTA Title VI and Environmental Justice Analysis and
Reporting
June 2014 – Parcel Editor– Integrate Observed Ridership for COA support
October 2014– Network Accessibility Composite Measures
Contact Information
Rodney BunnerTransportation Technology [email protected]@hotmail.com727-455-4059
Gabrielle MatthewsFDOT Project [email protected] 850-414-4532
www.tbest.org
Thank You!