ker pogonska moč motorjev težkih tovornjakov in avtobusov, potrebna za premagovanje strmin, omogoča na ravnih odsekih ceste vožnjo s preveliko hitrostjo, ki ni v skladu s konstrukcijskimi lastnostmi drugih sestavnih delov teh vozil, kot so npr. zavore in pnevmatike;
Whereas the available engine power for heavy goods vehicles and buses needed for climbing slopes enables them to be driven on level roads at excessive speeds that are not compatible with the specifications of other components of those vehicles such as brakes and tyres;