SCSC2003 Abstract S81194
Study of impacts of the space reduction, dedicated to the traffic flow in urban environment, in the case of the use of innovative technologies: case of the lane keeping system
Study of impacts of the space reduction, dedicated to the traffic flow in urban environment, in the case of the use of innovative technologies: case of the lane keeping system
Submitting Author: Dr. Jean-Michel AUBERLET
Abstract:
The decrease of the space dedicated to the road traffic becomes a major issue for the sustainable development in urban environment. Decrease this road traffic space can be done, for example, by reducing the width of the lanes. In this case, due to the difficulty of vehicle guidance in narrow lanes, the drivers' speeds would be lower (due to the proximity of vehicles in adjacent lanes); this decrease of speed would induce a loss of capacity.
Since the Lane Keeping system helps the driver to keep its vehicle within the driving lane, an expected impact of the system could be that the driver maintains his speed at a relevant level, and then to maintain the capacity level.
To study the impact of this driving aid device in an urban environment relating to the traffic capacity, we follow the so-called integrated approach.
This approach allows us to study quite any modification in the road traffic system. The approach consists in several steps and can be iterative. The first step consists in identifying the drivers' behaviors in real situations or with a driving simulator for the future situations. In the second step the results of the experiments are used to model drivers' behaviors. These new behaviors are then implemented in the behavioral traffic model during the third step. At this stage, modified traffic flow can be simulated and traffic studies can be conducted. An optional fourth step consist in studying the drivers' behavior immersed in the new "modified" virtual traffic. In this paper, In this paper, (i) this original approach and the tools designed to follow this approach will be presented, (ii) the experiments on the INRETS Simē driving simulator and the traffic studies with the behavioral traffic model ARCHISIM will be described.
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