The adaptation programme on one of London’s largest fleets cost the civils specialist up to £1,200 a vehicle.

The move came as Mayor of London Boris Johnson threatened to fine lorry operators £200 per vehicle if they are not fitted with cycle safety equipment.

Each FM Conway lorry over 7.5 tonnes is fitted with features including side guards that protect cyclists, near-side blind-spot cameras that allow drivers to see real-time images to their left and seven side sensors that detect nearby objects.

Improvements also include reversing cameras for the blind-spot at the rear of the vehicle, high visibility signs and strobe beacons, and an audible ‘turning left’ warning.

All FM Conway drivers also have to undergo cycle safety training.

Michael Conway, CEO at FM Conway, said: “Our approach to cycle safety is two-fold: upgrading our fleet with advanced protection for cyclists while ensuring all of our drivers have the best possible training to build awareness of vulnerable road users.

“Retrofitted equipment can eliminate blindspots, and sophisticated training, especially in London, is already leading to greater awareness and understanding from drivers.

“We’re fortunate to be in a position that allows us to spend £1,200 fitting our vehicles with the latest measures.

“However, many smaller contractors and owner-drivers will struggle to do so, even with the threat of a fine, and it is important that the Government provides them with the support they need to fund safety improvements.

“This could take the form of interest free loans, congestion charge relief or access to preferred supplier lists to get best value for money.

“We operate one of London’s largest contractor fleets and, while there will always be more work to be done to safeguard cyclists, these direct initiatives are vital for eliminating unacceptable threats to all road users.”