[FDArchitects]

The salient features of the underground Metro Corridor are as follows:

(i) Gauge - 1435 mm (Standard Gauge)
(ii) No. of tracks - 2
(iii) Shortest radius of curve 300m on main lines and 200m on Depot lines
(iv) Maximum gradient 4%
(v) System of current collection :
In tunnel - 25 kV ac Rigid Overhead Contact system
In metro Depot : regulated polygonal/tramway type OHE system,
(vi) Type of platforms -Island/Side
(vii) Length of platforms -185 m
(viii) Design Speeds : Main Line - 90 km/h

Underground Section (GAD AND CROSS SECTION ATTACHED)
Cross Section
(i) Box tunnel - 4700 x 5200mm
(ii) Diameter of bore tunnel - 5700mm (Construction tolerance  75mm)
(iii) Depth of rail below ground level - 10 to 20 m approx.
(iv) Overall length of station box - Approx. 280-290m
(v) Width of station box - Approx. 25-30m
(vi) Width side platform - Approx. 5m
(vii) Width of island platform - Approx. 10 -15m