PRE-DRIVE C2X Deliverable D0.3 Final report_20100929.pdf
PRE-DRIVE C2X Deliverable D0.3 Final report_20100929.pdf
PRE-DRIVE C2X Deliverable D0.3 Final report_20100929.pdf
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<strong>Final</strong> Report <strong>PRE</strong>-<strong>DRIVE</strong> <strong>C2X</strong> 29.9.2010<br />
Although the HMI was not perfect and sometimes problems occurred during the<br />
tests, the system was considered as ready for a field trial as Figure 50 shows.<br />
Is the system ready for a field trial?<br />
fully<br />
somewhat<br />
partly<br />
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br />
not that much<br />
not at all<br />
Figure 50: Maturity for field trial<br />
A very interesting result is the judgement of the right point in time for warnings as<br />
Figure 51 reveals. While before driving test subjects wish warnings very early, this<br />
shifts to warnings which are closer in time to the dangerous situation.<br />
How early do you want to be warned?<br />
< 1 min earlier<br />
1-2 min earlier<br />
3-5 min earlier<br />
after<br />
before<br />
> 5 min earlier<br />
0 10 20 30 40 50 60<br />
Figure 51: Point in time for warning<br />
The Friendly User Test was very successful because it shows that customers are<br />
highly interested in vehicle communication. Also we can state that the chosen set of<br />
initial use cases meets user expectations.<br />
2.3.5.2 Social impact<br />
In order to determine the social impact of cooperative systems a cost/benefit<br />
analysis (CBA) was applied. From an overall evaluation standpoint, a CBA is the<br />
preferable method for assessing <strong>C2X</strong> communication systems, because it provides<br />
an undisputable methodological background, the absence of a weighting scheme<br />
<strong>Deliverable</strong> <strong>D0.3</strong> Version 1.0 63<br />
<strong>Final</strong> Report
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