00799027

Component

https://doi.org/10.3141/1707-09

http://scholar.google.com....+La&publication_year=2000

A procedure is described for incorporating interregional (external) heavy-duty truck trips in a regional travel-demand forecasting model. The procedure was developed as part of a comprehensive truck modeling effort conducted by the Southern California Association of Governments. The procedure is based on commodity flow forecasts and economic input-output modeling techniques. County-level commodity flows are disaggregated to the transportation analysis zone level using employment data, land use data, and commercial facility data. Input-output models are used to determine the portion of each inbound commodity that goes to final demand by consumers and the use of each commodity by industry sectors. Commodity flows then are converted to truck trips using commodity-specific estimates of the portion of tonnage carried in each truck weight class and the average truck payload for each weight class. These estimates are developed using data from the federal Truck Inventory and Use Survey and some truck origin-destination surveys performed at cordon points around the region. The model produces a set of trip tables that can be assigned to the regional roadway network using standard assignment techniques.

This paper appears in Transportation Research Record No. 1707, Freight Transportation Research.

English

p. 73-80

2000

Transportation Research Record

0309066867

Figures (1) ; References (14) ; Tables (4)

Commodity flow; Disaggregate analysis; Estimates; Forecasting; Input output models; Mathematical models; Origin and destination; Regional transportation; Surveys; Tonnage; Travel demand; Trip tables; Truck traffic

Truck Inventory and Use Survey

Payload; Truck trips

Economics; Highways; Planning and Forecasting; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Sep 27 2000 12:00AM

• CAR SCHEDULING: WHAT'S THE POINT? (WITH DISCUSSION AND CLOSURE)
• DECISION-MAKING PROCESS IN INTERMODAL TRANSPORTATION
• DEVELOPMENT OF A STATEWIDE TRUCK TRIP FORECASTING MODEL BASED ON COMMODITY FLOWS AND INPUT-OUTPUT COEFFICIENTS
• ESTIMATING MAINTENANCE-OF-WAY COSTS FOR U.S. RAILROADS AFTER DEREGULATION
• HAZARDOUS MATERIALS TRANSPORTATION ON U.S. RAILROADS: APPLICATION OF RISK ANALYSIS METHODS TO DECISION MAKING IN DEVELOPMENT OF REGULATIONS
• POTENTIAL APPLICATIONS OF INTELLIGENT TRANSPORTATION SYSTEMS TO ROAD FREIGHT TRANSPORT IN MEXICO
• REDUCING HAZARDOUS MATERIALS RELEASES FROM RAILROAD TANK CAR SAFETY VENTS
• RELATIONSHIP OF FREIGHT FACILITIES IN CENTRAL BUSINESS DISTRICT OFFICE BUILDINGS TO TRUCK TRAFFIC
• TRIP LENGTH DISTRIBUTIONS IN COMMODITY-BASED AND TRIP-BASED FREIGHT DEMAND MODELING: INVESTIGATION OF RELATIONSHIPS
• VALUE PRICING AND FREIGHT TRAFFIC: ISSUES AND INDUSTRY CONSTRAINTS IN SHIFTING FROM PEAK TO OFF-PEAK MOVEMENTS