A FRAMEWORK FOR A TRAFFIC SIGNAL CONTROL SYSTEM IN A CITY
This paper describes an iteractive process for setting up a signal control system for an urban district or a whole city. Details are given of the successive steps of the process: collection of traffic data, modification of the primary system structure (i.e. intersection layouts, one-way schemes, number and position of signals, etc.) to reach the desired network capacity, further collection of traffic data, implementation of a secondary system structure (hardware and softward for signal control) which allows the most efficient use of the modified primary structure, collection of up-to-date traffic data, etc. An attempt is made at formulating a theory for control areas based on minimum generalized costs associated with traffic. An L.P. algorithm is presented for calculating the capacity of a network and examples are given of (1) a strategy, tested in Stockholm, which uses continuously variable cycle time, and (2) special control strategies for two adjacent intersections.
Royal Institute of Technology, SwedenDivision of Traffic and Transport Planning
- SJOSTEDT, L
- Publication Date: 1971
- Features: Figures; References; Tables;
- Pagination: 52 p.
- TRT Terms: Data collection; Intersections; Traffic control; Urban areas
- Old TRIS Terms: Primary structure; Traffic control systems
- Subject Areas: Highways; Operations and Traffic Management;
- Accession Number: 00261855
- Record Type: Publication
- Source Agency: International Road Research Documentation, OECD
- Files: TRIS
- Created Date: Oct 22 1974 12:00AM