The MRT3 Mainline Double-Tracks is 16.9 km, consisting of elevated plinth tracks, at-grade ballasted track and bridge track. The switches and crossings on the mainline are 26 units; at the access lines, 2 units; and, at the depot, 48 units. The maximum gradient of the track is 5%, the rail track gauge is 1435 mm and the rail weight is 54 kg/M. The elevated track is 9 km while the atgrade track is 7 km.

The typical spanning of elevated guideway is 3 at 30.00 meters and 3 at 27.00 meters. The type of girder for elevated guideway is 1-135 M span steel Bridge at Guadalupe. The width of the guideway is mast - 9.0 m with OCS and 8.30 m without OCS. The Guideway tracks are slab and ballasted tracks.