New Delhi, 21 July: The Railways has finally selected two firms for installing the much awaited Train Collision Avoidance System (TCAS), the safety mechanism to prevent accidents, in the 200-km-long Vikarabad-Bidar section as a pilot project. 
Medha Servo and Kernex Microsystems were selected among six contenders, including a few multinational companies, by the Research, Designs and Standard Organisation (RDSO) of the Indian Railways on behalf of the Railway Board, a senior Railway Ministry official said. 
The pilot project, which aims at preventing accidents, is estimated to cost about Rs 18 crore while the trials on Vikarabad-Bidar section in South Central zone are expected to be completed in about eight months time by February 2014. 
A safety device designed to prevent train accidents, TCAS is based on a combination of railway signaling data with radio communications, global position, radio frequency identification devices, software and logic. 
The indigenously developed TCAS is a combination of Train Protection Warning System (TPWS), an European technology which protects trains against signal passing at danger, and Konkan Railway-developed anti-collision device which avoids collision in mid-section.
“TCAS is developed in RDSO and it is very cost effective for us. While TPWS cost about Rs 70 lakh per km, TCAS is just about Rs 10 lakh,” the official said. sns