I didnt want to discuss this, but I cant ignore moderator's question ) Usage: I send police car to patrol and turn its redirectional lights on. While its moving none car will be redirected (cause civil car too far from patrol car) But when the police car stuckes in traffic jam it WILL really redirect new arrivals vehicles. Otherwise there will be long chain of cars unless I keep eyes on all traffic in the town. Its important when there are lots of vehicles on the map (for example w00d 2.0 map submod) So, redirectional lights will be actually functioning when police car is not moving.