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

Final Report PRE-DRIVE C2X 29.9.2010
2.3.2.3 Application of simulation tool set to selected use cases for C2X communication
The potential of the integrated tools were shown by applying them to several use
cases like “Traffic Jam Ahead Warning”, “Decentralized FCD”, “Traffic Information
and Recommended Itinerary”, “Green Light Optimized Speed Advisory (GLOSA)”.
Some of the use cases were analysed by different combinations of tools.
In the following the application of the integrated simulation toolset to the PRE-
DRIVE C2X use case “Traffic information and recommended itinerary” is explained
in detail. The results of the application of the integrated simulation tool set to this
use case show nicely, how environmental issues are dealt with by the simulation
tool set. Also this simulation produced for different scenarios interesting results
regarding the effects of vehicular communication in general.
Application to “Traffic Information and Recommended Itinerary”
Simulators
Partners
FOKUS
Use Case
Communication
Traffic
Environment
Traffic information &
recommended
itinerary X X X
Application
Scenario
Excerpt of the city
of Cologne +
highway, city
centre, and rural
area (region of
city
Frankfurt/Main)
Results / comments
E.g. travel time benefit depending
on V2X penetration rate
Table 2: Overview traffic information & recommended itinerary 2
Objective
The aim of the “Traffic information and recommended Itinerary” use case is to
recommend routes to drivers which lead around congested areas. In the PRE-
DRIVE C2X solution, all V2X-based vehicles transmit certain information about their
current traffic situation to other vehicles in their vicinity. As a result, vehicles can use
received information to recalculate a new optimized route based on the current
traffic situation. One advantage of this algorithm is that vehicles also know about the
traffic situations of the bypass roads. Thus, it is avoided that vehicles try to use
roads to circumnavigate the congestion which have been also congested in the
meantime. To achieve this aim, the fundamental indicator of the algorithm to
recalculate the routes is the vehicles’ speed in the vicinity.
The most important steps of the algorithm are:
Every V2X-based vehicle sends its average speed for a passed road segment to
other vehicles in its vicinity.
Deliverable D0.3 Version 1.0 32
Final Report