1978-01-01

The Dynamic Effects of Commercial Vehicles on the Roadway and on the Transported Goods 785010

The measurement of dynamic forces is essential for the determination of the best compromise between vehicle size, effect on the roadway (especially in the vertical direction), and economic considerations of road design in terms of construction and transportation costs. The paper presents methods for determining dynamic forces, roadway characteristics, stress-loading by the transported goods, and dynamic forces and coefficients of automobiles, with their corresponding limits, under various driving conditions.The results show that the dynamic effects of individual vehicle categories can be reduced, namely:a) conventional mounting of axles, especially for two-axle automobiles, must be reconsidered whereby floating axles will not always demonstrate reduced dynamic characteristics,b) axle-mounting for buses and trailers must likewise be brought up-to-date,c) cushioning of trailers must also be reconsidered.In particular, impact coefficients indicate possibilities for reducing the stress-loading of the roadway and the transported goods.

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