SIMULATION OF TRAFFIC FLOW THROUGH LARGE TRAFFIC NETS

FOR THE SOLUTION OF TRAFFIC CONTROL PROBLEMS IN LARGE DISTRICTS OR ENTIRE CITIES (SEVERAL HUNDREDS OF INTERSECTIONS) SIMULATION IS INDICATED. HOWEVER, SIMULATION OF SUCH A LARGE SYSTEM IS NEARLY IMPOSSIBLE AS A CONSEQUENCE OF RESTRICTED MEMORY SPACE IN COMPUTERS AND, IF A REASONABLE DEGREE OF ACCURACY OF THE RESULTS IS DESIRED, LONG SIMULATION TIMES. THEREFORE A MODEL OF TRAFIC FLOW IS DEVELOPED THAT DOES NOT LOOK AT SEPARATE VEHICLES, BUT AT CLUSTERS OF VEHICLES. IT IS THEN POSSIBLE TO DESCRIBE REALISTICALLY TRAFFIC BEHAVIOR AT INTERSECTIONS AND ON THE ROADS BETWEEN THEM. THE SIMULATION PROGRAM CAN BE BUILT SO THAT THE GEOMETRY AND TRAFFIC INTENSITIES ON EACH INTERSECTION ARE TAKEN INTO ACCOUNT. ALSO THE SYSTEM OF DECISION RULES USED TO CONTROL THE TRAFFIC (E.G., SETTING OF TRAFFIC LIGHT CYCLES, THE PROGRESSION OF GREEN WAVES, THE WAY IN WHICH TRAFFIC ITSELF ACTUATES LIGHTS), CAN BE INCORPORATED IN THE PROGRAM. THIS TYPE OF SIMULATION HAS BEEN APPLIED TO AN EXISTING STREET NETWORK, IN A CENTRAL DISTRICT OF A DUTCH CITY. /AUTHOR/

• Corporate Authors:

  Proc 4th Intl Symp Traffic Flow Theory

  ,    
• Authors:
  • Schalkwijk, W F
• Publication Date: 1968-6

Subject/Index Terms

• TRT Terms: Intersections; Mathematical models; Networks; Streets; Traffic control; Traffic simulation
• Uncontrolled Terms: Models
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00227322
• Record Type: Publication
• Source Agency: Traffic Systems Reviews & Abstracts
• Report/Paper Numbers: pp 154-160
• Files: TRIS
• Created Date: Jul 12 1971 12:00AM