Onderzoek

Evaluatie van geïntegreerde bestuurdersondersteuning – Gebruikersbehoeften & effecten op bestuurder en verkeersstroom

Assessment of integrated driver assistance – User needs & impacts on driver and traffic flow

PhD student:

ir Cornelie J.G. van Driel (c.j.g.vandriel@utwente.nl)

Promotor:

Prof. dr ir Bart van Arem (b.vanarem@utwente.nl)

Period:

March 2003 – March 2007. Completed on November 2, 2007

Thesis:

PhD Thesis Cornelie van Driel

High expectations rest on driver support systems in terms of a safer, cleaner and more efficient and comfortable transport system. Starting with the car driver’s point of view, this research project focuses on the assessment of integrated driver assistance. User needs for driver assistance are studied as well as the usage of a so-called Congestion Assistant and its impacts on congestion dynamics.

Keywords: integrated driver assistance, user needs, driving behaviour, congestion dynamics

Background and problem definition

The car driver of tomorrow will enjoy an increasing variety of driver support systems. To what extent should these systems be integrated? The main research questions of this project are:

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What are the needs of the driver with respect to integrated driver assistance?

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What are the impacts of an integrated system – the Congestion Assistant – on driving behaviour, mental workload and acceptance?

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What are the impacts of the Congestion Assistant on traffic safety and efficiency?

‘Project outline’

Methodological approach

By means of an Internet questionnaire, more than 1000 Dutch car drivers indicated their perceived needs for driver assistance. These results were used for designing the Congestion Assistant consisting of informing, assisting and controlling functions to support the driver during congested traffic situations on motorways. By means of a driving simulator experiment, 37 participants gained experience with the system. These results were used for setting up a microscopic traffic simulation study to investigate the impacts of the Congestion Assistant on congestion dynamics.

‘Driving with the Congestion Assistant in the TNO driving simulator’

Scientific and societal relevance

This research project provides insight into integrated driver assistance in general and a Congestion Assistant in particular. This insight is useful for the car industry to develop systems based on the driver’s preferences. It is useful for the government to stimulate or regulate the introduction of systems depending on their impacts on the transport system.

Expected practical and scientific results

The user needs survey showed needs for several forms of driver assistance (i.e. congestion assistance). Moreover, it indicated consequences for the integration of driver assistance (i.e. vehicle-vehicle communication). The driving simulator experiment revealed that the participants appreciated the Congestion Assistant, although not all functions were rated equally. Promising improvements in traffic safety and efficiency were found when approaching and driving in a traffic jam. The traffic simulation study will investigate to what extent these results prevail when focusing on a whole traffic flow instead of a single driver.

Publications

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Driel, C.J.G. van, B. van Arem (2007). Driver needs, acceptance and willingness to pay related to a Congestion Assistant. TRB Annual Meeting, 21-25 January 2007, Washington DC, USA. [accepted]

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Driel, C.J.G. van, M. Hoedemaeker, B. van Arem (2007). Impacts of a Congestion Assistant on driving behaviour and acceptance using a driving simulator, Transportation Research Part F, vol. 10, no. 2, pp. 139-152. [PDF]

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Arem, B. van, Driel, C.J.G. van, & Visser, R. (2006). The impacts of cooperative adaptive cruise control on traffic flow characteristics, IEEE transactions on intelligent transportation system, vol. 7, no. 4, pp. 429-436.

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Driel, C.J.G. van, B. van Arem (2006). Driver acceptance of a Congestion Assistant. Results from a driving simulator study. In Proceedings 9th TRAIL Congress, Selected papers, pp. 93-111, TRAIL Research School, Delft, The Netherlands.

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Driel, C.J.G. van, & Arem, B. van (2006). Impacts of a Congestion Assistant on driving behaviour, workload and acceptance. A driving simulator study. CE&M research report 2006R-002/VVR-001, ISSN 1568-4652, University of Twente, Enschede, The Netherlands. [PDF]

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Hof, T., Driel, C.J.G. van, Arem, B. van, Hoedemaeker, M., Brookhuis, K.A. (2006). Mental workload while driving with a congestion assistant. Proc. 16th World Congress on Ergonomics, 10-14 July 2006, Maastricht, The Netherlands.

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Driel, C.J.G. van & Arem, B. van (2005). Integrated driver assistance from the driver’s perspective. Results from a user needs survey. CE&M research report 2005R-002.VVR-002, ISSN 1568-4652, University of Twente, Enschede, The Netherlands. [PDF]

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Driel, C.J.G. van & Arem, B. van (2005). Integrated driver assistance: results from a user needs survey. Proc. 12th World Congress on ITS, “Enabling Choices in Transportation”. 6-10 November 2005, San Francisco, USA.

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Driel, C.J.G. van & Arem, B. van (2005). Investigation of user needs for driver assistance: results of an Internet questionnaire, European Journal of Transport and Infrastructure Research, vol. 5, nr 4 (2005), pp. 297-316.

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Houtenbos, M., Hegeman, G. & Driel, C.J.G. van (2005). Determining opportunities for overtaking assistance: combined efforts of a user needs survey and an interaction model. Proc. 12th World Congress on ITS, “Enabling Choices in Transportation”. 6-10 November 2005, San Francisco, USA.

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Driel, C.J.G. van & Arem, B. van (2004). Integrated driver assistance. Starting with the driver’s perspective. Paper presented at 8th TRAIL Congress and Knowledge Market, “A World of Transport, Infrastructure and Logistics”. 23 november 2004, Rotterdam, The Netherlands.

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Driel, C.J.G. van & B. van Arem (2004). Integration of driver support functions: the drivers’ point of view. Proc. IEEE SMC 2004. November 2004, The Hague, The Netherlands.

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Driel, C.J.G. van & B. van Arem (2004). Nieuwe systemen in de auto: lust of last? Geïntegreerde bestuurdersondersteuning gezien vanuit de automobilist. Proc. Colloquium Vervoersplanologisch Speurwerk 2004. 25-26 november 2004, Zeist, The Netherlands, pp. 1859-1877. [in Dutch] [PDF]

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Driel, C.J.G. van & B. van Arem (2004). What about the integration of driver support functions. Proc. 11th World Conference on ITS. October 2004, Nagoya, Japan.

Acknowledgement

This research is part of the AIDA programme – a cooperation between TNO and the University of Twente – and the Dutch TRANSUMO programme.