COMPUTERIZED SKETCH-PLANNING PROCESS FOR URBAN SIGNALIZED INTERSECTIONS

Urban transportation networks in many cities will continue to experience enormous pressures because of population growth. As a result, the level of service at many signalized intersections will decrease to unacceptable levels within the next 20 years. Continuation of traffic growth over this period will necessitate intersection improvements. Previous research provided a simple methodology (the sketch-planning process (SPP)) based on cost-effectiveness to determine the optimum intersection improvement plan. During the automation of the SPP, many improvements were introduced. These improvements include (a) determination of the exact future year an intersection fails to meet requirements, (b) determination of the intersection's failure mechanisms, and (c) ability to simulate periodic signal timing optimization. A case study illustrates the automated SPP (ASPP) software package, which is a quick and efficient implementation tool that helps planners to rate intersection improvements. This package will enable planners to determine right-of-way needs before development makes costs prohibitive.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1990/1280/1280-010.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=COMPUTERIZED+SKETCH-PLANNING+PROCESS+FOR+URBAN+SIGNALIZED+INTERSECTIONS&author=F.+Najafi&author=C.+Jacks&author=S.+Naik&publication_year=1990
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309050588
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1280, Transportation Management, HOV Systems, and Geometric Design and Effects 1990. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Najafi, Fazil T
  • Jacks, Charles
  • Naik, Sumanth M
• Publication Date: 1990

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 92-103
• Monograph Title: Transportation management, HOV systems, and geometric design and effects 1990
• Serial:
  • Transportation Research Record
  • Issue Number: 1280
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Automation; Case studies; Improvements; Signalized intersections; Sketch planning; Software; Urban areas
• Old TRIS Terms: Sketch planning techniques
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning; I73: Traffic Control;

Filing Info

• Accession Number: 00605583
• Record Type: Publication
• ISBN: 0309050588
• Files: TRIS, TRB, ATRI
• Created Date: Mar 31 1991 12:00AM