accident assessment bonnet car crumpled damage damaged dented duty evaluation hood motor-vehicle on duty police scrutiny smash-repair smashed vehicle wheel wrecked equipment fire and rescue fire truck firemen jaws-of-life tangle bus passing armed authority badges law order patrols power symbols uniforms weapons alert bay boats defence defence-forces naval navy on-duty patrol patrol-boats patrolling readiness ready seaside secure security vessel vessels access advice around-the-clock availability available communicating communication compound police-station regulations responsible sign signs ambulance assist assistance city city-street city-traffic distinctive emergency help paramedics patient-transport road roadside sepia service side-panel street transport transportation windows authorities control deployment law-&-order light National-Day on-the-job presence river river-traffic Singapore traffic-control anchorage anchored barrier barriers dock docked harbor harbor-front harbour harbour-front jetties Jetty loading seawall vehicles walkways wharf