A posted speed limit remains a maximum limit, but safe driving always depends on conditions. Government road-safety guidance advises drivers to obey speed limits, avoid cellphone use, ensure vehicles are roadworthy and maintain a safe following distance. K53 guidance also requires longer following distance in adverse conditions such as rain, slippery surfaces and poor visibility. For a learner, this means the “correct” speed is not always the number on the sign. Heavy rain, glare, darkness, fog, standing water, pedestrians near the road or congested traffic may require you to slow down and create a larger safety buffer. Use visibility as a practical guide. If you cannot see far enough ahead to identify a hazard and stop safely, reduce speed. If another driver is following too closely, avoid sudden braking and increase your own gap ahead where safe. Good driving is not about maintaining a fixed speed— it is about matching speed and space to what is happening around you.
Source: Government road-safety guidance.
Frequently Asked Questions
Should I always drive at the posted speed limit?
No. The limit is a maximum. You must reduce speed when rain, visibility, traffic or road conditions make the maximum unsafe.
How should rain change my driving?
Increase following distance, reduce speed, brake gently and avoid sudden steering or acceleration.
Does fog affect following distance?
Yes. Poor visibility and slippery surfaces require a larger following gap and lower speed.
What should I do when another driver tailgates me in bad weather?
Stay calm, avoid sudden braking, increase your space ahead and allow the driver to pass when it is safe.