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Turnout is a weak link in railway track and its structure is complex, so it is necessary to use advanced technology to monitor rail damage of the turnout zone. This paper studied on various existing monitoring methods, and integrated three methods to realize the compound monitoring of rail damage, i.e. fiber grating, optical imaging and Lamb guided wave. Both the relation between parameters of these...
In 2003, the Metropolitan Atlanta Rapid Transit Authority (MARTA) embarked upon an ambitious program to modernize its rail car fleet. MARTA's analysis pointed to significant cost savings by having approximately two-thirds of their fleet rehabilitated rather than purchase new cars. That portion of their fleet is an average of 22 years old. Virtually all mechanical and electrical systems are being refurbished...
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