Robust Handling of Diffuse Hazard in Country Road Traffic
Sprache des Titels:
Englisch
Original Buchtitel:
IEEE
Original Kurzfassung:
Abstract?Traffic hazards can be present everywhere on a
route, especially on roads without access limitations. Many
severe accidents occur on country roads because of the combination
of lack of access restrictions with relatively high travel
speed. To prevent a hazard to lead to an accident, timely
information is needed, which in most cases depends on sensor
range, which, unfortunately, is limited both by the devices and
the environment. Robust approaches ? being ready for the
worst case ? lead to a significant loss in travel speed, while
probabilistic approaches may have a price in terms of safety.
In this paper, we propose a switching strategy mainly based
on sensor range and topological information. Far from highhazard
regions, e.g. road crossings, only sensor range is used
to limit the maximum speed, so that, in an unexpected case, an
emergency braking with limited risk could be possible. Near
to high-hazard regions, an active hazard search is performed
and the travel speed adapted accordingly. The proposed control
strategy is evaluated in terms of time cost at the example of
T-crossings on country roads using recorded measurements.