Environmental Engineering Reference
In-Depth Information
Table 1
Deployment trends for the chosen scenario
Year 0
Year 1
Year 2
Year 3
Year 4
Year 5
Year 6 and after
Number of installed
DSBs during the year
16
40
60
80
100
100
100
Number of vehicles
using the system
0
150
450
850
1150
1250
1250
Percentage of replaced cars
15 %
15 %
15 %
15 %
15 %
15 %
15 %
Table 2
Cost structure (in k€)
Investment costs
Cost type
Year 0
Year 1
Year 2
Year 3
Year 4
Year 5
Technologic investments
27.00
0.00
0.00
0.00
0.00
0.00
Infrastructure and civil works
40.25
60.37
50.31
50.31
50.31
0.00
Other investment costs
10.00
10.48
16.00
11.00
10.50
10.46
Total investment costs
77.25
70.85
66.31
61.31
60.81
10.46
DSB—operational costs
Cost type
Year 0
Year 1
Year 2
Year 3
Year 4
Year 5
Functional costs
0.00
40.00
40.00
40.00
40.00
40.00
Maintenance
0.00
57.90
80.56
99.44
118.32
137.20
Other operational costs
0.00
0.11
0.34
0.64
0.86
0.94
Total operational costs
0.00
98.02
120.90
140.08
159.19
178.14
the users will need to replace their cards each year. The deployment trends of the
system and the number of vehicles consequently using it are reported on Table 1 .
In all scenarios, we make the assumption that operational costs will not change.
The details of those costs are found in Gonzalez-Feliu et al. ( 2013 ). The cost
structure can be summarized in Table 2 .
To finance the system and also to make it more efficient, it is necessary to ask a
fee to the users, in order to both contribute to its development and be more
involved in using it as well as in defending its good usage. The following CBA
(one for each scenario) will be made to find the better fee to ensure a viable system
and then continuous in time.
4.3 Transport Carrier Benefits
Before making a CBA for each scenario, it is important to define the benefits of
transport carriers to estimate the values that fees to ask to carriers can take. This
value corresponds to the maximum fee transport carriers would accept to pay. To
obtain this value, we need first to estimate the benefits of a DSB for a transport
company. In this case, we can identify four direct benefits for a carrier:
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