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SE Florida FSUTMS Users Group Meeting
Yongqiang Wu FDOT Systems Planning Office
February 08, 208
Presented to
Presented by
Florida Department of Transportation 2
Content
Model Structure/ImplementationModel Structure/Implementation
Model Calibration/ValidationModel Calibration/Validation
Model ApplicationsModel Applications
Future EnhancementsFuture Enhancements
Florida Department of Transportation 3
Model Structure
Passenger Model
• Trip Generation• Trip Distribution• Auto Occupancy
Freight Model
• Trip Generation• Trip Distribution• Mode Choice
Highway Network
Joint Assignment
Florida Department of Transportation 4
Integrated Modeling Process
Tonnage Generation by Commodity Group
Tonnage Distribution by Commodity Group
Tonnage Mode Choice (Tons to
Trucks Conversion)
Freight Trucks
Non-Freight Trucks
QRFM Trip Generation
by Truck Class
QRFM Trip Distribution
by Truck Class
Heavy Truck Trip
Table
Medium Truck Trip
Table
Light Truck Trip
Table
Statewide Zonal Socioeconomic Data
Auto Trip Generation for Non-MPO Zones
Auto Trip Generation from MPO Models
Auto Vehicle Trip Distribution
Statewide Highway Network Skims
Statewide Highway Network
Auto Occupancy Model
Long Distance Trip Module
Volume/Speed by Vehicle Class
Passenger Model Freight Model
Freight Truck Trip
Table
Long Dist. Business Trip Table
FL Res LD Tourist
Trip Table
FL-US / FL-CAN
Trip Table
Short Dist. Ext-Int
Trip Table
Urban & Rural Auto Trip Table
Multi-User-Class Equilibrium Assignment
Input Process Output
Legend
Florida Department of Transportation 5
Cube Voyager Implementation
Florida Department of Transportation 6
User Interface
Florida Department of Transportation 7
User Interface (Cont’d)
Florida Department of Transportation 8
Highway Network – In-State
In-State: 87,853 Links
Florida Department of Transportation 9
Highway Network – Out-of-State
In-State: 87,853 LinksOut-of-State: 2,914 LinksTotal: 90,767 Links
Florida Department of Transportation 10
TAZ Structure - Internal
Urban: 3,529 ZonesRural: 358 Zones
Florida Department of Transportation 11
TAZ Structure – Ext. Stations
Urban: 3,529 ZonesRural: 358 ZonesExternal: 94 StationsTotal: 4,008 Zones
Florida Department of Transportation 12
Passenger Trips
Short Distance TripsTrip distance <= 40 miles
Long Distance TripsTrip distance > 40 miles
Florida Department of Transportation 13
Passenger Trip Purposes
Short Distance Trips– Home-Based Work– Home-Based Shopping– Home-Based Social-Recreational– Home-Based Other– Non-Home Based– External – Internal (EI)
Florida Department of Transportation 14
Passenger Trip Purposes
Long Distance Trips– Long Distance Business Trips– US Visitors to Florida– Florida Visitors to US– Canadian Visitors to Florida– Florida Instate Tourists
Data Sources for Long Distance Trips– National Household Travel Survey (NHTS) – American Travel Survey (ATS) – Florida Visitors Study
Florida Department of Transportation 15
Separate Programs for Freight and Non-Freight Trips
Freight Trips– 14 commodity groups (trip purposes)– Tonnages of commodities (trip ends)– function of employment & population
Truck Trips
Florida Department of Transportation 16
Commodity Groups
Fourteen Groups– Agriculture– Non-Metallic Minerals– Coal– Food– Non-Durable
Manufacturing Goods– Lumber– Chemicals
– Paper– Petroleum Products– Other Durable
Manufacturing Goods– Clay, Concrete and Glass– Waste– Miscellaneous Freight– Warehouse
Florida Department of Transportation 17
Freight Modes
Five Modes– Truck– Intermodal Rail– Carload Rail– Air– Water
Allocate by Commodity GroupAssume 306 Working Days per Year
Florida Department of Transportation 18
Non-Freight Truck Trips
Quick Response Freight Manual (QRFM) Method
Function of Employment & HouseholdThree Truck Types
– Light trucks (four-tired vehicles)– Medium trucks (single unit trucks with 6+ tires)– Heavy trucks (combination trucks)
Florida Department of Transportation 19
Joint Trip Assignment
Trucks are Converted to Passenger Car Equivalent (PCE)
Multi-User-Class Equilibrium Trip Assignment– Long distance auto and heavy trucks are assigned to
highway path based on free flow travel times– Short distance auto, medium- and light-trucks are
assigned to highway path base on congested travel times
Florida Department of Transportation 20
Joint Trip Assignment
Post Processing– Change attribute names to make the output more
readable– Convert PCEs back to number of trucks– Calculate aggregate statistics
Florida Department of Transportation 21
Model Calibration/Validation
Validated to Year 2000 ConditionsThree Levels of Validation
– System-wide Achieve reasonable results statewide
– District-wide Adjustment of parameters specific to districts
– Corridor level Focus on major statewide corridors
Florida Department of Transportation 22
Model Applications
Statewide Long- and Mid- Range Transportation Planning Studies
Florida’s Strategic Intermodal System (SIS) Implementation Analysis
Corridor AnalysisFreight Movements AnalysisFreight Mode Shift ImpactsSource of External Forecasts for
Urban and Regional Models
Florida Department of Transportation 23
Model Enhancements
Development of GIS Based NetworkMore Compatible TAZ StructureUniform Passenger Trip Generation
ModelReview/Revise Freight ModelUpdate Long Distance and Tourist Trip
TablesValidate to 2005 Conditions
Florida Department of Transportation
How to Get the FLSWM?
24
Questions?
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