| 摘要 |
<p>- 35 A method and system is described which provides protection of track vehicles 24 to minimise the risk of collision 5 with other rail vehicles. The protection may be either a field based protection, known as "electronic protection" or an office based protection know as "authority to move". When a train control system (TCS) 18 and signalling system 16 are in communication with each other the electronic 10 protection is available by which the signalling system 16 provides appropriate interlocks to prevent other rail vehicles from entering protected track sections. However in the event of a communications failure between the signalling system 16 and the TCS 18, the authority to move 15 office based protection is provided where a train controller at the TCS 18 designates one or more track sections along which the track vehicle 24 is authorised to move. For both forms of protection, the protection is linked to the protected vehicle so that the protection can 20 not be removed while the protected vehicle is detected or otherwise determined as being on the protected track sections. leii I ~c- - iF3 -C G . c</p> |
