<span style="color: #222222;">The Railways is planning to cover its entire network of 68,000 route km with automatic train protection system in a phased manner. </span><br />'' <br />'' <span style="color: #222222;">Addressing the 62nd annual day of Indian Railways Institute of Signal Engineering and Telecommunication in Hyderabad Railway Board Chairman Vinod Kumar Yadav said as a pilot project, the system would be implemented on 650 route km of the golden quadrilateral corridor connecting the four metros – Delhi, Mumbai, Chennai and Kolkata.</span><br />''  <br />