Developing long range traffic projection models for Illinois : final report.
-
2004-06-01
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Edition:Final report, August 2003 through June 2004
-
Corporate Publisher:
-
Abstract:The project objective was to develop a PC-based tool to assist Illinois Department of Transportation (IDOT) traffic forecasters
to meet FHWA reporting requirements for 2,400 HPMS sections and 27,000 structures in the State of Illinois, and to produce
construction forecasts for highway improvement projects. The research included a review of current IDOT traffic forecasting
procedures, study of the IRIS database in which roadway information, including HPMS and structures forecasts, are stored,
development of tables and search strategies to organize IRIS data efficiently for forecasting, and development and verification
of a computer model to project historical traffic data to future dates for FHWA reporting. The resulting computer program, the
Illinois Traffic Projection Tool (ITPT) uses regression techniques to project historical traffic data for evaluation and use by
IDOT traffic forecasters. Area-wide and county-wide growth rates are computed by applying a weighting function to
representative locations in each county. Forecasters can use these growth rates when extrapolation of historical trends is not
indicated by the data. The ITPT will make routine reporting on HPMS sections and structures, and special reporting on
highway improvement projects significantly faster and more easily documented for future retrieval.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
File Type:
Supporting Files
-
No Additional Files
More +