原文传递
Enhancements to the Advance Warning of End of Green System (AWEGS).
| 题名： | Enhancements to the Advance Warning of End of Green System (AWEGS). |
| 作者： | sunkari, s. r. charara, h. a. parker, r. t. palekar, t. a. |
| 关键词： | operation, improvements |
| 摘要： | The objective of this project was to make improvements to the Advance Warning of End of Green System (AWEGS). These improvements have enhanced the operation of AWEGS as well as have made the implementation of AWEGS much simpler. The enhancements include reducing false actuations, accounting for detector failures, detecting and treating queues, improving the visibility of the AWEGS sign, and making numerous modifications to the AWEGS interface. The improvements to AWEGS have made a significant improvement in the implementation of AWEGS at new locations. These improvements were implemented at existing AWEGS sites and at a new location in College Station, Texas. However, the advance warning at the College Station location is higher than expected at times. This basically means that sometimes the controller is not gapping out after AWEGS predicted that it would. Analysis of the data has shown that this is primarily due to the high volumes on the arterial approaches at the College Station site. These results have illustrated that the volumes have an impact on the operation of AWEGS and should be considered in the selection of future AWEGS sites. From the data collected from all AWEGS locations, it appears that AWEGS would function very well when the average daily traffic (ADT) at the intersection is below 15,000 vehicles. Above those volumes, the advance warning times can be higher than expected. A higher advance warning is not harmful. However, if it happens frequently, it can give rise to some confusion in the motorists. / NOTE: Technical rept. (Sept. 2004-Aug. 2006). / Supplementary Notes: Sponsored by Texas Dept. of Transportation, Austin. Research and Technology Implementation Office. and Federal Highway Administration, Austin, TX. Texas Div. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 报告类型： | 科技报告 |
相关文献
- Advance Warning for End-of-Green Phase to Reduce Red-Light-Running.
- Field Manual for the Operation of Advance Warning of End of Green System (AWEGS).
- Implementation of Advance Warning of End of Green System (AWEGS): Implementation Report.
- Development of Advance Warning Systems for End-of-Green Phase at High Speed Traffic Signals. Research rept. Sep 01-Aug 03.
- Design and Installation Guidelines for Advance Warning Systems for End-of-Green Phase at High Speed Traffic Signals. Research rept. Sep 01-Aug 03.
- Signal Technician's Installation and Maintenance Manual for Advance Warning of End-Of-Green Phase at High Speed Traffic Signals. Research rept. Sep 01-Aug 03.
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