The article deals with issues of vehicle braking from different points of view. Both from methodical aspect of measuring process as well as from statistical and accuracy aspects. We made repeated braking tests of modern vehicles during intensive braking on various asphalt surfaces with the goal to evaluate character of this random variable from statistical point of view. We dedicated our attention also to the accuracy attainable using various measuring methods and equipment. Within measurement of braking deceleration we used low-end measuring devices, measuring devices most used in Slovakia as well as measuring and evaluation instrument Correvit. Repeated measure-ments of braking deceleration during intensive deceleration were evaluated using methods of mathematical statistics – hypothesis testing. Usable result from article is mainly measurement set of braking deceleration of current modern vehicles during intensive braking on various asphalt surfaces as well as evaluation of accuracy levels with respect to various used devices and measurement methods.

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