If it is unsafe or impossible to pass, the lights and sirens shall be ________. Lights, sirens, air horns, spot lights and/or PA's shall not be used to ________.
Answer: switched off until the traffic clears the intersection & "push" vehicles into intersections and traffic
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.