What is a reasonable vehicle speed?

1. On paved roads – 80KpH; on dirt roads – 40KpH.
2. The maximum speed the vehicle can reach under the existing circumstances.
3. Correct answer: A reasonable speed which, considering all the road conditions, and road signs allows the driver to control the vehicle
4. Any speed, as long as the driver fully controls the vehicle.

WhyA reasonable speed is one at which you fully control the vehicle in any conditions and obey the signs. It is not the most the car can do.