Abstract
Maintenance, which is critical for safe, reliable, quality, and cost-effective service, plays a dominant role in the railway industry. Therefore, this paper examines the importance and applications of Robotic and Autonomous Systems (RAS) in railway maintenance. More than 70 research publications, which are either in practice or under investigation describing RAS developments in the railway maintenance, are analysed. It has been found that the majority of RAS developed are for rolling-stock maintenance, followed by railway track maintenance. Further, it has been found that there is growing interest and demand for robotics and autonomous systems in the railway maintenance sector, which is largely due to the increased competition, rapid expansion and ever-increasing expenses.
Highlights
Maintenance can be defined as a task or series of tasks that protect or reinstate the anticipated condition of a system, and these tasks include technical, administrative, and managerial actions taken [1,2]
Kent and Ward have carried out some early development work to introduce robotics into the additive repair of rolling-stock wheels, which is supported by the Rail Safety and Standards Board (RSSB) via Rail Research UK Association (RRUKA) [10]
A power transmission wire inspection system was developed for Netherlands railway company, which perceives the thickness of wires and detects any appearance of holes that are caused by local sparks [51]
Summary
Maintenance can be defined as a task or series of tasks that protect or reinstate the anticipated condition of a system, and these tasks include technical, administrative, and managerial actions taken [1,2]. By referring to the Pareto graph, it is evident that rolling-stock and infrastructure faults contributed almost 80% of accidents summarized by the D-RAIL FP7 project. The introduction of RAS in railway maintenance would maintenance would be an ideal solution for achieving expected cost benefits. Overhead power lines or electrified third rails [18] Japanese high-speed track maintenance—which involves a train driver and a supervisor who perform well defined simple railway track maintenance—which involves a train driver and a supervisor who perform well series of tasks over a prolonged period, where it is easy to lose motivation accomplish defined simple series of tasks over a prolonged period, where it isfocus easy and to lose focus andto motivation accomplish job an immaculate job [19] In the UK, including many other countries, is in the right stage to invest in automation [24,25]
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