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原文传递 Review of Emerging Technologies and Issues in Rail and Track Inspection for Local Lines in the United States

题名：	Review of Emerging Technologies and Issues in Rail and Track Inspection for Local Lines in the United States
正文语种：	eng
作者：	Ren, Yihao;Lu, Pan;Ai, Chengbo;Gao, Lu;Qiu, Shi;Tolliver, Denver
作者单位：	North Dakota State Univ Dept Transportat Logist & Finance Fargo ND 58108 USA;North Dakota State Univ Dept Transportat Logist & Finance Upper Great Plains Transportat Inst Fargo ND 58108 USA;Univ Massachusetts Dept Civil & Environm Engn Amherst MA 01003 USA;Univ Houston Dept Construct Management Houston TX 77204 USA;Cent South Univ Dept Civil Engn Changsha 410083 Hunan Peoples R China;North Dakota State Univ Upper Great Plains Transportat Inst Fargo ND 58108 USA
关键词：	Infrastructure;Rail track;Inspection;Technology;Local rail lines
摘要：	Deteriorated track infrastructure can lead to significant consequences, such as derailment incidents, loss of revenue-service hours, reduced train operation speed, and even failure of the business. The Federal Railroad Administration (FRA) requires thorough and timely rail track inspections to keep trains operating safely. Approaches using advanced and emerging technologies have become more accessible and broadened their applications. Unfortunately, for Class II (regional) and III (short line) railroads (referred to as local railroads hereafter), there are many obstacles for deployment of these advanced technologies, such as budget constraints and lack of workforce skills. Local railroads are actively seeking cost-effective and efficient approaches to replace conventional methods of manual inspection. This paper, for the first time, aims at identifying the key challenges for local railroads regarding the demand for reliable and timely rail track inspection, lack of advancement of emerging technologies, and unique constraints faced by the local railroads. Through a comprehensive review of the common rail and track geometry defects and state-of-the-art track inspection techniques, this paper critically analyzes the knowledge gaps from four key perspectives from the perspective of local railroad operation: finance, technology, standards, and operation. It is found that automated nondestructive evaluation (NDE) techniques and inexpensive alternatives to the Automated Track Inspection Program (ATIP) may still be cost-feasible and effective for local railroads with future technological and operational upgrades.
出版年：	2021
期刊名称：	Journal of Transportation Engineering
卷：	147
期：	10