Traffic signal offset design using event scanning method simulation of traffic congestion
✍ Scribed by Takeshi Inoue; Mitsunobu Futamura; Takayoshi Yokota; Yutaka Sano
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 458 KB
- Volume
- 82
- Category
- Article
- ISSN
- 1042-0967
No coin nor oath required. For personal study only.
✦ Synopsis
Recently the congestion of traffic has been a growing problem, and it is desirable to make traffic smooth. As a means to smooth traffic flow, the offset, that is, the difference in the phase between signals, can be controlled. Although the offset can be calculated using a trapezoidal projecting method or the TRANSYT offset design tool in off-peak traffic, it has been configured based on the experience of operators with congested traffic. Based on this, we have prepared an offset design tool applicable to congested traffic. At first, as simple a model as possible was used to reproduce the traffic conditions in the simulation, and the estimation of events was investigated by applying the event scanning method. An experiment conducted with this design tool on the NagoyaNagakute Highway in Aichi prefecture confirmed that the major-road travel time of about 540 seconds formerly required was shortened to about 340 seconds in the peak morning hour, so that the traffic congestion on the major road during the morning rush hour was relieved.