black blue open shutdown sign standby airport control control tower former tower tower views unused visibilty air traffic control airline airplane architecture atc aviation berlin command flight fly holidays plane radar tower signal tracking traffic accident ambulance assessment assist assistance bonnet broken broken lights bumper car car-crash collided collision crash crash-repairs crumpled damage damaged dented distinctive equipment evaluation fender fire-and-rescue fire-truck firemen help hood lights motor-vehicle on-duty panel-beating paramedics police repair-job scrutiny smash smash-repairs smashed vehicle wheel wrecked