City Public Transport Company “Belgrade” (CPTC“Belgrade”) is the carrier of the public transportation function in Belgrade and the biggest operator, during 2013, was performed the largest modernization of the bus fleet, in its long history, with 232 new articulated buses (Euro 5/EEV).
The introduction of the new buses in regular operation and the withdrawal from service of old, significantly is improved quality of passenger transport in all aspects.
This paper presents an analysis of reduced the harmful gases emission compared with the period before the renewal of the fleet, as well as the effects of reduced consumption of diesel fuels. The modernization of the fleet is contributed to the increase in overall energy efficiency and lower cost of exploitation.