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Use of Continuous Green T-Intersections.
| 题名： | Use of Continuous Green T-Intersections. |
| 关键词： | Signalized intersections |
| 摘要： | Intersections within roadway systems create points of conflict for motorists and nonmotorized users who turn onto or cross another path of traffic. While intersections make up only a small part of the highway system, they are the points at which more than 50 percent of urban crashes and over 30 percent of rural crashes occur, according to a 2004 report by the National Cooperative Highway Research Program. Signalized intersections are designed to separate and control conflict for all modes of transportation, including vehicles, pedestrians and bicycle traffic. Yet 30 percent of fatal crashes at intersections occur at signalized intersections. To address this safety issue and to improve traffic flow, some highway designers have replaced conventional intersections with low-cost alternative strategies, including the Continuous Green T-Intersection (CGT). The MnDOT Office of Project Management & Technical Support sought information about the state of the practice among state departments of transportation (DOTs) concerning the extent of CGT use and DOT experiences with CGT implementation, maintenance, design guidance and use. This Transportation Research Synthesis includes the results of a survey of highway design and roadway geometry professionals regarding their knowledge and use of CGTs. State-level design standards and technical guidance were also requested and are included. |
| 报告类型： | 科技报告 |
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