The Track & Tunnel Cleaning Wagon (TCW) can be designed in either as a Shunter tower or a Self-Propelled vehicle.  It is used for automatic cleaning of the tracks or tunnel during off revenue hours using ultra-high pressure water jet system.  The Track & Tunnel Cleaning Wagon can also be adapted to provide vacuum cleaning and other maintenance services. The Wagon consists of bogie chassis, brake system, couplers and draft gear as well as train-line.  It is designed to meet all the stringent safety, operational requirements and standards as stipulated in the Railway Industry.