Stopping Distances Slashed by New US Braking Standards
On July 24 the US based National Highway Traffic Safety Administration announced new braking standards that will require the “vast majority” of heavy truck tractor units to achieve a 30 per cent reduction in stopping distances compared with current levels. The new regulation, which will be phased in over a four year period beginning with 2012 models, sets out that these vehicles should be capable of stopping from sixty miles per hour in not more than 250 feet when loaded to their gross vehicle weight rating. Previous standards required a complete stop within 355 feet. When lightly loaded, the stopping distance from sixty miles per hour should be within 235 feet.