County-Level Planning Model in Atlanta Regionby Gary A. Cornell,
Document Type: Proceeding Paper
Part of: Microcomputer Applications in Transportation II
Gwinnett County is working with the Atlanta Regional Commission (ARC) and Barton-Ashman Associates to download the ARC trip tables for use in a microcomputer transportation planning model (TRANSPLAN). The hardware system is an IBM-PC-AT (640K) with dual 15MG external hard disk drives for mass storage. The regional network for Gwinnett County uses 52 zones and approximately 2000 links. The 1980 and 2010 trip tables for Gwinnett County will be extracted from the regional database using the NAG routine from the Urban Transportation Planning System (UTPS). The new county-level network will include approximately 200 internal zones, 50 external stations, and 6,000 - 8,000 links. The TRANSPLAN 2010 assignment will be adjusted to match regional assignments at external stations. This work will be used in county-level highway assignments; subarea highway assignments; corridor studies; and traffic impact studies for rezoning applications and impact fee assessments.
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