Pedestrian accidents frequently occur when vehicles **are driven in reverse**. This is because the driver has **limited visibility** and may not see pedestrians behind the vehicle.

- **Precautions when driving in reverse:** It is crucial to take many precautions in these situations to avoid accidents. The lack of visibility is a significant risk factor, as pedestrians may be in the driver's blind spot.

- **Safety measures:** Drivers must be especially careful and ensure there are no pedestrians nearby before starting to move the vehicle in reverse. Additionally, pedestrians should be alert and avoid walking behind vehicles that might be reversing.

In summary, the lack of visibility when driving in reverse is a common cause of pedestrian accidents, and both drivers and pedestrians should take measures to prevent these accidents.