arm build building construct constructing crane dig digging Dirt heavy industry lift machine robot tool tools tractor transport work working bag black box brown cardboard caution dirty dumpster environment full garbage landfill notice plastic refuse scratch smell trash ugly white Alley avenue beacon dark electricity green illumination lamp light metal pointy historic sight street strength vertical visibility West Point access armed authorities authority availability available badges barriers cars communicating communication control deployment equipment flashing-lights law law-&-order lights motor-bikes National-Day on-duty on-the-job order patrols police police-vehicles power presence regulations responsible security Singapore symbols traffic traffic-control uniforms vehicles weapons appearance Australia Australian bayonet bayonets belted belts first-world-war first-world-war-uniforms guard guard-duty guarding guards historic history in-public khaki kit march marching orderly outfit outfits outfitted parade parading Patriotic patriotism period-costume period-uniform public rifle rifles service-kit servicemen soldiers trousers uniform world-war-one WWI