Observations were conducted during working days for

4.1.2. CO2 emission savings
In order to calculate CO2 emission savings resulting from the project (i.e. increase in number of regular bicycle users), two scenarios are compared. The first scenario, Scenario I, VAL-083 related to the situation before intervention. The second scenario, Scenario II, is related to the situation after the intervention (i.e. existing situation).
Data from Europe Cycling Federation?s study [43] were used for quantifying CO2 emissions. Namely, in the ECF?s study were calculated and presented CO2 emissions per passenger kilometer traveled among three different forms of transport – bicycle, passenger car and bus. The calculation included impacts of production, maintenance and operation phases of each form of transport. Results shows that a bicycle releases about 21 grams of CO2(eq) per passenger kilometer traveled, while a passenger car and a bus release about 2712 g and 1013 g of CO2(eq) per passenger kilometer traveled, respectively. The comparison of the two scenarios is presented in Table 6. The results shows that CO2(eq) emission reduction achieved within one year period are 1845.9 kg, what is more than double reduction in relation to baseline condition.