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原文传递 NCHRP Web-Only Document 178: Assessment of Auxiliary Through Lanes at Signalized Intersections.

题名：	NCHRP Web-Only Document 178: Assessment of Auxiliary Through Lanes at Signalized Intersections.
关键词：	section；signal；through；assess；ssme；inter；lane；ters；erse；literature
摘要：	This project investigated the operational, safety, and design characteristics of Auxiliary Through Lanes (ATLs) at signalized intersections and produced guidelines for their evaluation and application. The project was conducted in two phases. Phase I included a literature review, survey, and development of concept methods for evaluating the operations, safety, and design of ATLs. Phase II included data collection, analysis, and the development of guidelines. Operational, safety, and design data were collected at 22 ATL approaches across the United States. All of the study approaches had upstream and downstream ATLs located to the right of the continuous through lane(s) (CTLs). The study sites included a mix of continuous through lanes (either one or two) and right-turn treatments (either shared or exclusive lanes).
报告类型：	科技报告