If you are stopped at a red light and hear an EMS siren, when may you proceed through the intersection?

When stopped at a red light and you hear an EMS (Emergency Medical Services) siren, it is essential to prioritize safety and the clearance of the intersection. Proceeding through the intersection is permitted under specific conditions that ensure the safety of everyone involved.

If a police officer is signaling you to proceed, it indicates that the officer has assessed the situation and is directing traffic. This allows you to safely continue through the intersection, as you would be following direct law enforcement instructions.

In the case where you see an EMS vehicle approaching, whether it has passed or is about to pass, you must wait until it has safely cleared the intersection. This rule is in place to allow emergency vehicles unhindered passage, which could be vital for their response time in emergencies.

Therefore, both scenarios outlined—being signaled by a police officer and waiting for the EMS vehicle to pass—are valid and safe methods to proceed through the intersection while ensuring you comply with traffic laws and maintain road safety. This is why the combined answer of both the direction from law enforcement and the clearance of the intersection by the EMS vehicle is correct.