PRE-DRIVE C2X Deliverable D0.3 Final report_20100929.pdf

Final Report PRE-DRIVE C2X 29.9.2010
leads to objective results, and the calculation procedure within CBA can be used for
other evaluation methods. The CBA did also provide input to the financial analysis,
the cost-effectiveness analysis, the break-even analysis, the multi-criteria analysis
and to the business case calculations performed in PRE-DRIVE C2X.
Figure 52 explains the steps of a cost benefit analysis.
Step 1 Step 2
Step 3 Step 4 Step 5
Quantification of
Physical Impacts
for „With- and
Without“-Case
Monetary
Evaluation of
Physical Impacts
= Benefits
Definition of
C2X
Scenarios
(„With-and
Without“-Case)
Introducing
new
automotive
technology
Traffic
Conditions
Impact
Correlation
• Accident
reduction
•Traffic effects
•Avoidable
emissions
Change of
Safety-, Traffic-,
Emission-
Situations
Determination of
Resource Effort
for introducing
C2X
Ressource
amount needed
for production
and operating
Use of Cost Unit
Rates
Monetary
Evaluation of
Resource Effort
Additional Costs
for C2X systems
Cost / Benefit
Comparison
Calculation of
Cost-Benefit Ratio
Figure 52: The five steps of a cost benefit analysis
For application to cooperative systems the existing tools for a CBA of driver
assistance functions had to be extended because these were not sufficient for such
complex systems, whose implementation in traffic takes several years Therefore
methodological framework of the CBA had to be enlarged. The following new
features and innovations were introduced:
The benefit-cost ratio is a single dimensional criterion for the consideration of
resource savings. A matrix with more criteria such as benefit-cost difference,
cost minimum, benefit maximum had to be established, because the other
criteria can be linked to political behavioural models. The selected criteria are
contrary to the multi-criteria analysis objective calculated numbers. However, the
multi-dimensional ranking can lead to a prioritization that differs from the ranking
by BCR (benefit cost ratio). The result of the multi-dimensional ranking offers an
optimized input to the business cases.
The suggestion for the final CBA within a comprehensive field operational test
is, that due to dynamic effects, the benefit-cost ratio (BCR) has to be calculated
Deliverable D0.3 Version 1.0 64
Final Report