Safe speeds

Speed limits show the maximum allowed speed. They are set for good driving conditions, but real roads are often more challenging.

Challenges when driving or riding

Conditions on the road

Conditions on and around the road mean drivers and riders may need to slow down to stay safe. For example:

• Weather, such as rain or fog
• Traffic levels
• Poor visibility
• Unexpected hazards
• Narrow lanes
• Other road users

Norfolk's roads range from quiet country lanes to busy town streets. Each brings different risks, even if you think you know the road well. 

Driving or riding to the environment and conditions, not just the speed limit is important for safer journeys. 

Other road users

At safer speeds, it's easier to judge distances, notice other road users ahead and calmly respond to changes in the road layout.  

Making calm decisions matters when driving and riding. It is even more important in busy places such as near:

• Schools
• Shops
• Residential streets
• Crossings 

This is where there is more movement and increased activity from different people choosing to walk, wheel, cycle, ride or drive.  

Roads signed at 30mph (miles per hour) or less support the many different ways people choose to travel. This is why slowing down and adjusting your speed to suit the environment is so important. 

Speed and stopping distances 

Your speed affects how quickly your vehicle can stop. The faster you're going, the more distance you need to stop, even with modern vehicle technology and good driving or riding skills. 

Higher speeds always mean longer stopping distances. 

A small change from 30mph to 35mph adds around 6.5 metres to your stopping distance. This is roughly the length of a large family car and a bicycle.

Choosing a slightly lower speed gives you more control and helps you to respond confidently and predictably to what's ahead. This choice is what makes you a good driver or rider. 

Go to the Brake website for more about typical stopping distances and a stopping distance calculator.