Traffic police handed out 3,750,000 fines in the first four months of this year, an increase of almost a million on a year ago, according to new justice ministry figures.

The 30% increase is largely due to speeding tickets generated by speed traps, in which a car’s average speed is calculated over a stretch of road.

In total, police handed out over three million speeding fines. Speed traps on the A4 motorway accounted for almost one third of these.

Car lease companies and motorists have made a huge number of complaints about the speed traps on the A4. In particular, they claim it is unclear what the maximum speed is.

Speed limits on Dutch roads can range from 130 kph to 30 kph.