AHMEDABAD: The construction work of first reinforced concrete (RC) track bed for the Mumbai-Ahmedabad high speed rail corridor track system as used in Japanese Shinkansen, began in Surat. This is for the first time, the J-slab ballastless track system is being used in India.
The track system comprises of a pre-cast track slab over which fastening devices and rails are fitted. This slab rests on the RC track bed which has a thickness of approximately 300mm and constructed in-situ (at site) for individual up and down track lines on viaduct top. The width of RC track bed is 2420mm.
