of 41.4 min (using the capacity in Eqs. (1) and(2)), i.e.,virtually
unchanged compared to the current situation.Now,a CBA of this
capacity expansion is to be setup.In the investment scenario,
a timetable of 7 trains/h is assumed.It is less obvious what
timetable should be in the do nothing scenario,however.Assuming the current timetable,4 trains/hour(giving a travel time of 41.4 min),results in appraisal A shown in Table 2. The consumer
surplus (CS)of this capacity increase is computed by Eq. (3) and
the producer surplus(PS)is computed by Eq. (4), with parameters
given in Table 1. The total social benefit (CSþPS) becomes slightly
more than 7000 SEK/h.