Study on feasibility of SATCOM for railway communication

Final Report
9.3.2.4 Cost Model
The cost model is built by segmenting each subsystem influencing the costs. The breakdown
subsystem scheme for the model is shown in Figure 71.
Timing Elements
Start Year
Duration
Operational Model
Data rates
Bandwidth
Tariffs
Deployment Model
#Terminals
#km of rail
#Gapfillers
SATCOM Terrestrial Base stations
Frequencies
Orbit
CAPEX OPEX CAPEX
OPEX
9.3.2.4.1 Timing Elements
Figure 71: Cost model subsystem breakdown
The time framework defined in the model contemplates the period between 2020 and 2040. The
investment and maintenance costs have been computed for the provision of the service during the
whole period. As mentioned previously, operational costs are charged recurrently and will have an
impact on the yearly investment requirements. On the other hand, capital expenses, by definition, are
one-time investments at the beginning of the period. Nevertheless, the systems reach an end of life
and they require eventual replacement. This replacement is defined by the lifecycles of the system
described in the table below. There are some restrictions on CAPEX investments when the technology
is close to obsolescence. Hence, no re-investment is performed after 2035.
SATCOM
Lifecycle
Rolling Stock Operator Trainset Devices Lifecycle
Rolling Stock Operator Handheld Devices Lifecycle
Infrastructure Manager Gap Filler - SATCOM Side Lifecycle
Infrastructure Manager SATCOM Hub Lifecycle
Value
12 years
12 years
12 years
12 years
Doc.Nº: SRAIL-FNR-010-IND
Edit./Rev.: 1/1
Date: 16/02/2017
Page 143 of 285