What is the primary reason speed limits on motorways are set at 120 km/h?
En español: ¿Cuál es la razón principal por la que los límites de velocidad en autopistas se establecen en 120 km/h?
A
To match the average speed of traffic
B
To allow overtaking at safe speeds
C
Because the chances of surviving a crash are higher below that speed
Correct answer
D
Because vehicle engines perform best at that speed
Why this is the correct answer
The 120 km/h limit is set because the chances of surviving a crash are significantly higher below that speed, due to the lower kinetic energy involved.
Topic:
Speed