They are typically situated in vehicle inspection bays or garages.
Inspection pits have to be narrow enough to fit between the wheels of a vehicle yet wide enough for a technician to work within.
[1] Falls into pits are common accidents in vehicle inspection bays.
It is advised to place a net over unoccupied vehicle inspection pits to protect against falls.
[1] It is important that the pit be well ventilated to prevent fires and explosions from hazardous substances.