An IAM (Institute of Advanced Motorists) survey found that 76% of high-mileage drivers approve of speed cameras. In comparison, only 34% of medium-mileage drivers lent their support.

High-mileage drivers were also much less likely than average to believe revenue generation through fines was the main motive behind installing safety cameras, with 34% feeling fines were not the motive compared to the survey average of only 26%.

Simon Elstow, IAM head of training and field operations, said: 'It is reassuring to discover that so many high-mileage, generally company drivers, are supportive of speed cameras. There is a common perception that everybody is against them, but the fact that commercial drivers are one of the most supportive groups is very comforting, as they are spending the most time out on the road.'

Conversely, high-mileage drivers were one of the groups least likely to believe the location of cameras is linked to accidents, with 62% being doubtful of the relationship.

Mr Elstow continued: 'It is interesting that commercial drivers still question the positioning of speed cameras. This suspicion surrounding their usage should be addressed through better communication of information from central government and local authorities, as to their motives.'