A COMPUTER PROGRAM FOR RAMP CAPACITY

THE INSTITUTE OF TRANSPORTATION AND TRAFFIC ENGINEERING, WITH PARTIAL SUPPORT FROM THE AUTOMOTIVE SAFETY FOUNDATION, IS DEVELOPING A SERIES OF COMPUTER PROGRAMS FOR CAPACITY ANALYSIS IN ACCORDANCE WITH THE 1965 HIGHWAY CAPACITY MANUAL. THIS PAPER DESCRIBES THE PROGRAM DEALING WITH RAMP CAPACITY. THE COMPUTER PROGRAM IS WRITTEN IN THE FORTRAN LANGUAGE AND WILL SOLVE FOR EITHER RAMP SERVICE VOLUME OR LEVEL OF SERVICE FOR AN INDIVIDUAL SINGLE-LANE RAMP. THE COMPUTATIONAL PROCEDURE IS BASED ON THAT GIVEN IN THE 1965 HIGHWAY CAPACITY MANUAL (HCM). THE PAPER INCLUDES A DETAILED DISCUSSION OF THE IMPUT DATA, THE CHECKS ON THE INPUT DATA AND THE COMPUTED RESULTS, A FLOW DIAGRAM, AND A LISTING OF THE COMPUTER OUTPUT FOR A SPECIFIC EXAMPLE. THE PROCEDURE USED IN THE PROGRAM IS DISCUSSED VERY BRIEFLY AND A COMPARISON IS MADE BETWEEN THE MANUAL AND COMPUTER PROGRAM RESULTS FOR SEVERAL EXAMPLE PROBLEMS. /BPR/

• Supplemental Notes:
  • Vol 39, pp 38-40, 42, 44
• Authors:
  • Ahlborn, G
  • Woodie, W L
  • May, A D
• Publication Date: 0

Media Info

• Serial:
  • Traffic Engineering, Inst Traffic Engr
  • Volume: 44
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Computer programs; Highway capacity; Interchange ramps; Level of service
• Identifier Terms: FORTRAN (Computer program language)
• Old TRIS Terms: Freeway ramps
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00227216
• Record Type: Publication
• Source Agency: Traffic Systems Reviews & Abstracts
• Files: TRIS
• Created Date: Aug 13 2004 6:56PM