Footbridge closed for construction. Hazardous materials sign visible.

Disassembly of Pedestrian Bridge next to Railway Bridge

Train passes an empty station platform marked with a yellow safety line.

Passenger Train passes Stand Behind Yellow Line Sign

Outdoor scene with safety personnel in high-visibility vests.

A warning sign at a railroad crossing with lush trees in the background.

Blue parking signpost with 50m notice on rural road, clear sky

Triangle warning sign by a rocky coastal path, clear sky above.

Oceanfront view of a coastal guard station with waving flags.

Roadside welcome sign in Jiang Yuan, China, with trees and traffic.

Sign on snowy fence with 'Polite Notice No Parking' message.

Courier cyclist in city delivering packages, dynamic urban scene.

Voting sign in multiple languages on a chain-link fence amidst urban backdrops.

Woman in white t-shirt expressing positivity on an orange background.

Person in white shirt gestures number one on a vibrant red backdrop.

Close-up of a pedestrian crossing signal at night in the city.

Pedestrian crossing light transitions on a city street with urban backdrop.

Close-up of police barricade tape at night on a dark street.

Bustling scene inside an airport terminal with passengers and stores.

A cheerful woman claps her hands, full of positivity and happiness.

Night scenes of urban traffic lights changing colors.

A young adult gestures hand signs against a bright orange backdrop, emphasizing positive communication.

A woman in a white t-shirt shows the number four hand signal.

Close-up of pedestrian crossing traffic light in the city.

Paramedics assist patient inside ambulance, offering emergency first aid.

Vibrant animation showing germ prevention with symbols.