This Part of EN 12195 refers to the design of securing methods (blocking, lashing, and combinations) for securing of loads for surface transport by road vehicles or parts of them (lorries, trailers, containers and swap bodies), including their transport on vessels or by rail and/or combinations thereof. Hump shunting during railway transport is excluded. (Web lashings see EN 12195-2, lashing chains see EN 12195-3, lashing steel wire ropes see EN 12195-4). This standard does not apply for vehicles with a total weight lower than 3,5 t. Note: Lighter vehicles may have braking systems, which give higher values of acceleration on the road. For dimensioning of load securing a distinction is made between steady loads and loads liable to tilting. Furthermore, the acceleration coefficients for surface transport are specified. For over top lashing the force loss in the tension force of the lashing at the outer edges between load and lashing is taken into account. The securing forces to be chosen for calculation in this EN 12195-1 are static forces produced by blocking or tensioning of lashings and dynamic forces, which act on the lashing as a reaction of the load movements. Examples for the application of calculations are given in the Annexes.