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Completed project


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POVW - Principal Other Vehicle Warning  

Depending on the specific situation the possibility to avoid an accident may differ significantly between the principal actors of a pending collision, e.g. one actor (1) may easily avoid a collision while the other actor (2) may not be able to do so. The only possibility for Actor 2 to avoid a collision in such a situation is to issue a warning to Actor 1, so that s/he may take evasive actions. Connecting the horn and the headlight to the already existing sensor system, for automatic warning activation, is a cost effective means to provide such a warning. One of the aims of the POVW project is to evaluate the effectiveness of such a warning, for drivers with and without hearing disorder, and also to validate if the communication between the actors is experienced as intended. The other aim is to study effects of cognitive workload on drivers with and without hearing disorder.


One objective of this project is to develop simulation technology for a realistic sensation of headlight glare and horn sound of an on-coming vehicle. The effect of using these signaling systems in a critical situation will then be studied in the VTI simulator. The aim of that study is to find a suitable warning signal which makes the driver react fast and try to avoid a collision. It is important that the driver understands the message of the signal to be able to distinguish between "normal" horn and blink signals which are not time critical and this time critical warning. Since a feasible warning system should be accessible for all drivers the participants in this study will be both individuals with and individuals without hearing disorder. The other objective is to examine if there is a difference in driver performance for individuals with and without hearing disorder. To be able to compare changes in driving behavior associated with cognitive workload an additional cognitive task will be added. This task will also be used to distract the drivers to create a critical event.



Project manager: Birgitta Thorslund, VTI, +46 13 20 41 55


Project partners: VTI and VCC

Project period: September 2010 - December 2011


The POVW project is a joint project with the competence centre SAFER at Chalmers who is also co-funding the project.


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