At night, an airport tarmac is bustling with activity

At night, an airport tarmac is bustling with activity. A large airplane, possibly a United Airlines aircraft, is parked at a gate. Ground crew members are attending to it, using equipment like a yellow stairs or ramp. Orange cones mark off the area. A pedestrian crossing is visible on the tarmac, illuminated by streetlights. The scene is somewhat grainy, but the general activity of loading and unloading is apparent.