MICROSCOPIC VIEW TRAFFIC FLOW SIMULATION ON EXPRESSWAYS USING SPIRAL FUNCTION
This paper describes driver characteristics on expressways, develops the microscopic view traffic simulation model, and presents methods of evaluation for simulation model parameters. To develop the simulation model, two types of investigations were conducted on the Metropolitan Expressway in Tokyo and Keiyo Expressway in Chiba, Japan. Vehicles were observed using video cameras to detect the driving behaviors at three types of road alignment conditions. Another study was carried out using a test vehicle equipped with sensors and video cameras. The laser beam range detector was used for measurement of pair vehicles spacing. The accelerator opening, brake pedal pressure, vehicle velocity, galvanic skin response (GSR), electrocardiogram, and so on were also measured and recorded. From the test vehicle it was observed that the loci on the plane of spacing and relative velocity were similar to clockwise spiral curve. The spiral function was expressed by desired spacing and desired speed. In this study, spiral function was applied to the proposed vehicle's following theory. The observed GSR data expressed the relation between driver's psychological state and driving behavior. The main parameters of this model--desired speed and desired speed--could be estimated using hyperbola function. The microscopic view traffic flow simulation mode, which applied the spiral function, was developed on a UNIX workstation. The simulator can represent the individual driving behaviors, traffic flow phenomenon, and dangerous situations, which occur on expressways.
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Supplemental Notes:
- Five volumes of papers and one volume of abstracts comprise the published set of conference materials.
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Corporate Authors:
VERTIS
TORANOMOM 34 MORI BUILDING 1-25-5
TORANOMON, MINATOKU, TOKYO 105 Japan -
Authors:
- Nakayama, H
- ICHIKAWA, K
- Fujimoto, S
- Miura, N
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Conference:
- Steps Forward. Intelligent Transport Systems World Congress
- Location: Yokohama, Japan
- Date: 1995-11-9 to 1995-11-11
- Publication Date: 1995-11
Language
- English
Media Info
- Pagination: p. 1940
Subject/Index Terms
- TRT Terms: Behavior; Cameras; Drivers; Expressways; Functions (Mathematics); Intelligent transportation systems; Mathematical models; Motor vehicles; Sensors; Speed; Spirals; Traffic simulation; Traffic speed; Vehicle spacing
- Uncontrolled Terms: Models; Parameters
- Geographic Terms: Japan
- Old TRIS Terms: Spiral function
- Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;
Filing Info
- Accession Number: 00724411
- Record Type: Publication
- Report/Paper Numbers: Volume 4
- Files: TRIS
- Created Date: Aug 8 1996 12:00AM