SECOND GENERATION CONTROL FORTRAN SOFTWARE: URBAN TRAFFIC CONTROL SYSTEM (UTCS) SOFTWARE SUPPORT PROJECT-VOLUME II

The Second Generation UTCS developed by TRW was converted from its machine dependent language to FORTRAN. Enhancements to the system included an improved technique for determining when traffic signal timing pattern recomputation should occur; a change to provide for maintenance of user defined signal phase splits or offsets; a recoding of the link/phase correlation; a modification in the offset optimization algorithm to properly compare optimum solutions for alternate cycle lengths; and numerous corrections to the UTCS data base. File maintenance for the source programs was developed, and all source images are in easily-modified magnetic tape formats. A source language editing program was added to the system library for the 2GC FORTRAN system. Documentation for routines which remain unchanged from the original 2GC was updated to reflect new documentation standards. /FHWA/

• Corporate Authors:

  Honeywell Incorported

  Traffic Management Center, 600 Second Street, NE
  Hopkins, MN  United States  55343
• Publication Date: 1976-6

Media Info

• Pagination: 356 p.

Subject/Index Terms

• TRT Terms: Computer programming languages; Computer programs; Databases; Software; Traffic control; Traffic signal timing
• Old TRIS Terms: Traffic control systems
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00179473
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: FHWA-RD-76-152 Final Rpt., FCP 32B2-512
• Contract Numbers: DOT-FH-11-8317
• Files: TRIS, USDOT
• Created Date: Aug 27 1988 12:00AM