The locking of any RouteThe path along a section of track between one Signal and the next, along which an authorised movement is to be made. from a SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed., when the driver has seen or may
have seen a Proceed AspectAny Signal Aspect which permits the driver to pass the Signal. at the SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. or has seen an AspectAny valid visual indication of a Signal as displayed to the driver. at a
previous SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. that would indicate to the driver that the former SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. is
displaying a proceed aspectAny Signal Aspect which permits the driver to pass the Signal.. If the SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. is replaced to dangerAn indication given by a Signal to stop., the
approach lockingThe locking of any Route from a Signal, when the driver has seen or may have seen a Proceed Aspect at the Signal or has seen an Aspect at a previous Signal that... prevents the immediate releaseThe removal of Locking on a function, for example, the removal of Route Locking or the unlocking of a function such as a Ground Frame. of the routeThe path along a section of track between one Signal and the next, along which an authorised movement is to be made. because it is
possible that an approaching train may be unable to stop.