NDLI: Experimental evaluation of ITST based school bus stop notifications for car drivers

Content Provider	IEEE Xplore Digital Library
Author	Diederichs, J.P.F. Weber, B. Ganzhorn, M.
Copyright Year	2011
Description	Author affiliation: University of Stuttgart IAT, Stuttgart, Germany (Diederichs, J.P.F.; Weber, B.) \|\| University Stuttgart IAT, Stuttgart, Germany (Ganzhorn, M.)
Abstract	Bus Stops for school busses incorporate a special risk to school children. Most accidents on the way to school occur at or close to the school bus stops. Modern ITS telecommunication technology can be applied to make bus stops safer and inform car drivers about dangerous bus stops on their route. In order to raise the acceptance of speed limits at bus stops it can help to reliably inform the drivers if there are actually children close to the bus stop. When no children are using the bus stop the traffic can circulate without special precautions. Modern ITST technology can be used to detect the presence of school children. In a European funded project within FP7 framework the Amparo Solutions tag-based technology is used to detect nearby children who carry a radio transmitter. A bus stop unit receives this information and can activate special warnings to the surrounding traffic. In the current paper an empirical experimental study is described where 3 warning conditions have been compared in a driving simulator: a school bus stop sign, a school bus stop sign with flashing lights on top of it and a school bus stop sign in combination with an in-vehicle information design. The experimental design allows comparison of driver behavior at bus stops with and without children under the three different warning conditions. Dependent variables are: speed, lateral distance, reaction time to a child jumping on the street and the number of collisions. Overall 60 drivers participate to the driving simulator study. This number allows statistical evidence on the safety effects of different bus stop warnings. Results show that the two warning strategies are highly effective in terms of speed reduction in comparison to not providing any special warning about the children. The comparison of the two warning strategies (road sign with lightning and in-vehicle information) show no significant differences in driver behavior and very small effect sizes. In conclusion either system can be applied to reduce the speed when passing by bus stops with children, the number of collisions however could not be reduced significantly in this study.
Starting Page	345
Ending Page	350
File Size	455162
Page Count	6
File Format	PDF
ISBN	9781612846682
e-ISBN	9781612846712
DOI	10.1109/ITST.2011.6060080
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-23
Publisher Place	Russia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	bus stop Roads Automotive HMI Radio transmitters Europe warnings road sign Educational institutions Vehicles children Lightning school bus Safety
Content Type	Text
Resource Type	Article

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