Maintenance of way (commonly abbreviated to MOW, also known as "Permanent Way Maintenance" or "PWM" in Britain) refers to the maintenance, construction, and improvement of rail infrastructure, including tracks, ballast, grade, and lineside infrastructure such as signals and signs. == Track == Railroad tracks consist of multiple key components: a track bed, and ballast forming the foundation of the tracks.
Maintenance of way (commonly abbreviated to MOW, also known as "Permanent Way Maintenance" or "PWM" in Britain) refers to the maintenance, construction, and improvement of rail infrastructure, including tracks, ballast, grade, and lineside infrastructure such as signals and signs. == Track == Railroad tracks consist of multiple key components: a track bed, and ballast forming the foundation of the tracks.
Source: Wikipedia "Maintenance of way" · CC BY-SA 4.0
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