Analytical studies were conducted that combined existing progression formulas with new formulas to develop ideal street spacings for balanced progression. Ideal street spacings were developed for various combinations of design parameters, including single alternate progression, double alternate progression, cycle lengths from 30 to 120 seconds, speeds from 20 to 50 miles per hour, two phase and eight phase operation, lead-lag left turn phasing, and 50/50, 60/40, and 70/30 splits. The ideal street spacing data were verified using TRANSYT computer simulations, and a family of tables were developed for use by traffic engineering personnel in planning and designing new arterial systems. The tables can also be used to assist in designing new arterial systems. The tables can also be used to assist in designing traffic control systems to improve safety and efficiency on existing arterial systems.

  • Corporate Authors:

    Honeywell Traffic Management Center

    600 2nd Street North
    Hopkins, MN  United States  55343

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • RIDDLE, R
  • Publication Date: 1979-5

Media Info

  • Pagination: 56 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00313243
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-RD-79- 28, 47160
  • Contract Numbers: DOT-FH-11-9103
  • Files: NTIS, TRIS, USDOT
  • Created Date: May 21 1980 12:00AM