Speed bumps and traffic calming measures

Speed-reducing measures are physical devices in the road that force you to slow down. They are used especially in residential areas, near schools, and in densely built-up areas.

Types of speed reducers

Warning of speed bumps

Speed bumps are normally indicated with warning sign 109 – speed bump and often with markings on the bump itself. Be aware of:

• Sub-signs indicating number of bumps or distance.
• Some bumps are poorly visible, especially in dark or wet weather.
• Raised crosswalks usually have separate signs .

Correct driving technique

• Reduce speed well in advance before reaching the bump – do not brake hard on the bump itself.
• Maintain steady and low speed over the bump to avoid discomfort and wear.
• Do not swerve to avoid bumps by driving into the opposite lane.
• Speed cushions have gaps for buses and large vehicles – passenger cars should drive over the cushion.

Speed reducers and speed in residential zones

Speed reducers are common in residential zones where the speed limit is often 30 km/h. They are a supplement to zone signs and are meant to ensure that drivers actually maintain a low speed.

Common pitfalls

• Driving too fast over speed bumps and damaging the car.
• Braking hard just before the bump instead of gradually reducing speed.
• Swerving into the oncoming lane to avoid speed cushions.
• Overlooking speed bumps in the dark – be especially aware of driving in the dark .

Further reading

• Read about speed in residential zones for speed rules in residential areas.
• See speed zones and zone signs for rules on speed zones.
• Understand road types and road classes for which roads typically have speed reducers.
• Read about driving in built-up areas for general rules in urban areas.