Abstract
This paper quantitatively assesses the performance of manual traffic-signal control by comparing its performance with two optimized traffic-signal controls during oversaturated conditions. To simulate manual traffic-signal control, the VisSim-based hardware-in-theloop simulation (HILS), which provides similar manual controls at a field traffic-signal, was implemented. Whereas the normal-day traffic signal-timing plan was obtained from the city of Charlottesville, optimized signal-timing plans were obtained from Synchro. The results obtained from the VisSim-based simulation indicate that benefits can be achieved by utilizing manual traffic-signal control and optimized signal-controls relative to normal-day traffic-signal control during oversaturated conditions. In particular, manual traffic-signal control reduced delays to a greater extent than the two optimized signal-timing plans. Although the reduction in delays achieved by the manual signal-controls was not statistically significant when compared with the performance of the two optimized signal-controls, the results of the third and fourth manual signal-control attempts by the same operators reflecting the performance of trained manual controls showed statistically significant improvements in reducing delays.
Original language | English (US) |
---|---|
Pages (from-to) | 1068-1075 |
Number of pages | 8 |
Journal | Journal of Transportation Engineering |
Volume | 139 |
Issue number | 11 |
DOIs | |
State | Published - 2013 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Transportation
Keywords
- 170-E ATC traffic signal controller
- Hardware-in-the-loop simulation (HILS)
- Manual traffic signal control
- Optimized traffic signal control