A man plays with a model of a lorry releasing it on the improvised road slope which ends as a long flat platform. He observes the lorry as it stops along the platform. At the first release, lorry just slows down and stops. At the second release, it stops promptly and...
The Road Research Laboratory carries out vital tests to increase car safety.
Motorcycle with special side car that tests how prone to skidding different road surfaces are.
Research into traffic jams, tyre treads and lampposts at Road Research Laboratory.
Footage of experiments being carried out on road to improve road safety, Colnbrook.
Crash helmets are tested at the Road Research Laboratory in Buckinghamshire.
Romans chariot racing and men testing safety helmets at Road Research Laboratory.
Road Research Laboratory vehicle tests roads for skid resistance.