In the current situation when the individual motorization volume is getting larger, the increase of the public passenger transport services quality is considered to be a significant tool for environmental protection and efficiency increase of transport as a whole. The preconditions for boosting competitiveness in the public passenger transport and its attractiveness to consumers are to draw the quality of services closer to the individual transport level that has a considerably negative impact on the environment and safety, requires higher transport costs and causes congestions, which also increase the transport costs.

The inevitable attribute of a service provided in the public passenger transport is quality, which represents a complex criterion of the service assessment. The higher importance of quality emphasises the requirement concerning its objective economic evaluation based on the identification and quantification of the key factors and relations by standard, but also new methods and approaches.