appearance attendants brushed brushes carwash clean cleaners cleaning conveyor conveyorized drying equipment fixed cleaning mechanisms high pressure water streams human greeter mechanized mechanized car washes mitters nozzles protectants recycle reuse rinse rollers soaps soft cloth track trickling tunnel entrance tunnel exit tunnel washes vehicle wash stations washing processes waste-water water water reuse window windscreen wraparounds advice alert appropriate-behavior appropriate-behaviour cars clearway communicate communication danger dangerous denied directions information informing keep-clear law legal no-parking no-standing no-temporary-parking not-allowed not-permitted permission-denied prohibited prohibition red refusal restricted restriction restrictions risk risks risky road road-safety road-side safety sign signs unacceptable vehicles warning warning-sign white access-denied care caution parking announcement be-careful beware black careful cautious communicating concern conditions Look looking lookout observant road-conditions road-risks rural slippage slippery slow slow-down speed speed-reduction tractor tractors traffic watch watch-out signage articulated barrel barrels chemical chemicals contaminate contamination corrode corrosion dioxin drum drums dump ecology environment environmental garbage gas gasoline green industrial industry issue issues leak leakage lorry management metal oil petrochemical petrol poison poisonous pollute polluting pollution refine refined refinery rust rusty seep seepage seeping semi spill stare storage substance technology toxic trailer transport transportation waste weirdvis acceptable access-limited advising allocated allocation approved authorised authorized automobiles behave carpark directive entry-denied entry-prohibited limited limited-parking motor-cars no-access no-entry special-parking unauthorised unauthorized