RT Journal Article SR Electronic A1 Drozdziel, Pawel A1 Krzywonos, Leszek A1 Madlenak, Radovan A1 Rybicka, Iwona T1 Selected Aspects of Analyses of Failure Rates of Active Safety Systems in Buses JF Communications - Scientific Letters of the University of Zilina YR 2014 VO 16 IS 3 SP 114 OP 119 DO 10.26552/com.C.2014.3.114-119 UL https://komunikacie.uniza.sk/artkey/csl-201403-0021.php AB The article outlines the methodology of statistical analysis of failure rate of active safety systems in buses. The theoretical discussion is illustrated with calculations carried out on the basis of empirical data covering a four-year period of operation of selected models of buses at the Motor Transport Company "Wschod" plc in Lublin (Poland). It was found that the distribution of distances travelled by the analyzed vehicles between successive repairs can be approximated by an exponential distribution