Items of annual benefit and necessary calculations are explained in "3-2 benefit measurement". This set of guidelines employs items of benefit; user's benefit( saving of travel time in vehicle operating cost),traffic safety benefit and environmental benefit.
the total of BofPV calculated with the above-mentioned Formula is the present value of the project benefits and is a key value in economic evolution.
Table 3-4-1 illustrates the calculation of the present value of benefit.