Map showing Thane Yard remodelling in progress, showing the one and only one Switch in Diamond unique layout, found nowehere on IR, except CR/TNA. Layout shows old and new proposed / in pogress turnouts, paths etc, in addition to the placement of DC AC Neutral Zones, for test charge purposes of AC conversion. Thane yard was closed for traffic in Dec 31, 2012 and Jan 1, 2013, and this resulted in huge chaos in the traffic, as block had to be extended till morning 10am of Jan 1, 2013 for slow lines. (Vijay Aravamudhan)