What is a polisi3d bimetallic heatbreak ender?

EMT here just wanting to point something out while cities tend to have sensors on their traffic lights to detect oncomming emergency vehicles, many systems use encoded light systems to trigger stoplights to avoid false positives and people trying to improperly inject commands into the system. In the metro that I live in, the main city has systems for detecting emergency vehicles, however, the information that is used to trigger the lights are only designed to respond to that cities ambulance. None of the dozen plus communities around the city are able to interact with the traffic lights in give right away. Luckily once you’re in the city you’re on the interstate and the hospital you’re going to do should only be 2 to 4 stoplights total that you have to interact with.