signs and road markings meaning. `no littering`, `no honking` and `no idling` signs. top view of city road.

air auto automobile behavior blowing burning car cartoon city cockpit drive driver driving drop dumping engine exhaust flat garbage hand honk honking idling illustration litter littering markings meaning motor moving outdoor outside path penalty pipe pollution prohibition public regulation road rule rules school sign signal signs smoke symbol template throwing tips top toxic traffic transport trash vector vehicle view