A hypothetical question - if a driver was to miss the AWS and get braked at either a double or single yellow, I think by the book he is supposed to contact the signaller, but I wonder if a driver would instead, after coming to a stand, if he knows he has not committed a SPAD, just reset the system and restart? Would he get in trouble for doing this? (Obviously if he had committed a SPAD he would get in trouble, but if he was sure that he was only on a double or single yellow signal, restarting would not cause any problems so long as he is prepared to stop at the next signal). Because this would probably reduce the disruption caused by the stoppage.