Driving at more than **120 kilometers per hour** on a motorway **decreases the likelihood of surviving** an accident. This is due to several reasons:

- **Speed limits**: Speed limits are designed to ensure safety on the roads. On motorways and highways, it is established that it is safer to drive at less than 120 km/h. Exceeding this speed increases the risk of serious accidents.

- **Reaction to unforeseen events**: At high speeds, it is more difficult to react quickly to unexpected situations, which increases the possibility of making fatal errors.

- **Tunnel vision**: Driving fast reduces the ability to see what is happening on the sides, limiting peripheral vision and increasing the risk of accidents.

- **Fatigue and aggressiveness**: Maintaining a high speed for a long time can cause fatigue and aggressiveness, negatively affecting driving ability.

In summary, respecting speed limits is crucial to increase the chances of surviving an accident on motorways.