原文传递
Methodology for Determination of Optimal Traffic Responsive Plan Selection Control Parameters. Research rept. Sep 02-Feb 04.
| 题名： | Methodology for Determination of Optimal Traffic Responsive Plan Selection Control Parameters. Research rept. Sep 02-Feb 04. |
| 作者： | Abbas-M.M.; Chaudhary-N.A.; Sharma-A.; Venglar-S.P.; Engelbrecht-R.J. |
| 关键词： | *Traffic-control; *Closed-loop-systems.;Traffic-signal-timing; Performance-evaluation; Guidelines-; Signalized-intersections; Timing-; Traffic-delay-minimization; Optimization-; Methodology-. |
| 摘要： | Closed-loop traffic control systems can be operated by either Time-of-Day (TOD) model or Traffic Responsive Plan Selection (TRPS) mode. When properly configured, the TRPS mode has the greatest potential to provide an optimal operation due to its ability to accommodate abnormal traffic conditions such as incidents, special events, and holiday traffic. Most importantly, the TRPS mode can reduce the need for frequent redesign/updates to signal timing plans. Although TRPS model can provide a more optimal and a snappier operation than the TOD mode, numerous parameters (e.g., cycle level parameters, directionality parameters, smoothing factors, weighting factors, etc.) have to be set up correctly for the system to work as intended. Otherwise, TRPS model may select inappropriate timing plans or cause the closed-loop system to run in a continuous transitioning state. To date, there have not been any formal guidelines for selection or robust and optimal TRPS system parameters the thresholds. This report provides a novel methodology for robust and optimal selection of TRPS parameters and thresholds. The report discusses the application of the methodology using data from two closed-loop systems in Texas and demonstrates that the proposed methodology can result in up to 100 percent accurate identification of optimal timing plans. The report also shows potential benefits ranging from an annual savings of $27,630 to $5,042,200 per intersection in delay reduction alone. |
| 报告类型： | 科技报告 |
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