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

Final Report PRE-DRIVE C2X 29.9.2010
Figure 23: CO 2 Emissions depending on the V2X penetration rate (urban scenario)
Figure 24: Fuel consumption depending on the V2X penetration rate (urban scenario)
Highway Scenario
Figure shows the travel time benefit that is achieved in the highway scenario by
the traffic information & recommended itinerary. The travel time benefit is the
average of the saved time of all classic (blue line) or V2X-based (red line)
vehicles in percent in comparison to the travel time if no V2X application for the
circumnavigation of congested areas is used. Because the circumnavigations of
the V2X-based vehicles unload the congested areas, also classical vehicles
without V2X benefit. If the V2X penetration rate is low (less than 15%), only the
V2X-based vehicles have a benefit (about 7%) whereas the classical vehicles
profit on higher penetration rates only. This effect is caused by the too marginal
unloading of the road works area if only few vehicles try to circumnavigate the
congestion. If the V2X penetration rate increases, the benefit of all vehicles
increases but V2X-based vehicles profit on a higher level. At 70% penetration
rate, the benefit of V2X-based vehicles is saturated on about 14% whereas the
benefit of classical vehicles grows further till 12% benefit on very high V2X
penetration rates is reached. In contrast to the urban scenario, V2X-based
vehicles do not have the maximal benefit on low penetration rates because the
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Final Report