Nerius Tradisauskas

Publications (7)4.94 Total impact

• Article: Intelligent speed adaptation as an assistive device for drivers with acquired brain injury: a single-case field experiment.

  Brith Klarborg, Harry Lahrmann, NielsAgerholm, Nerius Tradisauskas, Lisbeth Harms
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  ABSTRACT: Intelligent speed adaptation (ISA) was tested as an assistive device for drivers with an acquired brain injury (ABI). The study was part of the "Pay as You Speed" project (PAYS) and used the same equipment and technology as the main study (Lahrmann et al., in press-a, in press-b). Two drivers with ABI were recruited as subjects and had ISA equipment installed in their private vehicle. Their speed was logged with ISA equipment for a total of 30 weeks of which 12 weeks were with an active ISA user interface (6 weeks=Baseline 1; 12 weeks=ISA period; 12 weeks=Baseline 2). The subjects participated in two semi-structured interviews concerning their strategies for driving with ABI and for driving with ISA. Furthermore, they gave consent to have data from their clinical journals and be a part of the study. The two subjects did not report any instances of being distracted or confused by ISA, and in general they described driving with ISA as relaxed. ISA reduced the percentage of the total distance that was driven with a speed above the speed limit (PDA), but the subjects relapsed to their previous PDA level in Baseline 2. This suggests that ISA is more suited as a permanent assistive device (i.e. cognitive prosthesis) than as a temporary training device. As ABI is associated with a multitude of cognitive deficits, we developed a conceptual framework, which focused on the cognitive parameters that have been shown to relate to speeding behaviour, namely "intention to speed" and "inattention to speeding". The subjects' combined status on the two independent parameters made up their "speeding profile". A comparison of the speeding profiles and the speed logs indicated that ISA in the present study was more efficient in reducing inattention to speeding than affecting intention to speed. This finding suggests that ISA might be more suited for some neuropsychological profiles than for others, and that customisation of ISA for different neuropsychological profiles may be required. However, further studies with more subjects are needed in order to be conclusive on these issues.
  Accident; analysis and prevention 09/2012; 48:57-62. · 1.65 Impact Factor
• Article: Pay as You Speed, ISA with incentives for not speeding: a case of test driver recruitment.

  Harry Lahrmann, Niels Agerholm, Nerius Tradisauskas, Teresa Næss, Jens Juhl, Lisbeth Harms
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  ABSTRACT: The Intelligent Speed Adaptation (ISA) project we describe in this article is based on Pay as You Drive principles. These principles assume that the ISA equipment informs a driver of the speed limit, warns the driver when speeding and calculates penalty points. Each penalty point entails the reduction of a 30% discount on the driver's car insurance premium, which therefore produced the name, Pay as You Speed. The ISA equipment consists of a GPS-based On Board Unit with a mobile phone connection to a web server. The project was planned for a three-year test period with 300 young car drivers, but it never succeeded in recruiting that number of drivers. After several design changes, the project eventually went forward with 153 test drivers of all ages. This number represents approximately one thousandth of all car owners in the proving ground of North Jutland in Denmark. Furthermore the project was terminated before its scheduled closing date. This article describes the project with an emphasis on recruitment efforts and the project's progress. We include a discussion of possible explanations for the failure to recruit volunteers for the project and reflect upon the general barriers to using ISA with ordinary drivers.
  Accident; analysis and prevention 09/2012; 48:10-6. · 1.65 Impact Factor
• Article: Pay as You Speed, ISA with incentive for not speeding: results and interpretation of speed data.

  Harry Lahrmann, Niels Agerholm, Nerius Tradisauskas, Kasper K Berthelsen, Lisbeth Harms
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  ABSTRACT: To simulate a market introduction of Intelligent Speed Adaptation (ISA) and to study the effect of a Pay as You Speed (PAYS) concept, a field trial with 153 drivers was conducted during 2007-2009. The participants drove under PAYS conditions for a shorter or a longer period. The PAYS concept consisted of informative ISA linked with economic incentive for not speeding, measured through automatic count of penalty points whenever the speed limit was exceeded. The full incentive was set to 30% of a participant's insurance premium. The participants were exposed to different treatments, with and without incentive crossed with informative ISA present or absent. The results showed that ISA is an efficient tool for reducing speeding particularly on rural roads. The analysis of speed data demonstrated that the proportion of distance driven above the speed where the ISA equipment responded (PDA) was a sensitive measure for reflecting the effect of ISA, whereas mean free flow speed and the 85th percentile speed, were less sensitive to ISA effects. The PDA increased a little over time but still remained at a low level; however, when ISA was turned off, the participants' speeding relapsed to the baseline level. Both informative ISA and incentive ISA reduced the PDA, but there was no statistically significant interaction. Informative reduced it more than the incentive.
  Accident; analysis and prevention 09/2012; 48:17-28. · 1.65 Impact Factor
• Source

  Available from: trafikdage.dk

  Article: A NEW PERSPECTIVE ON ISA-EQUIPMENT: ASSISTIVE DEVICES FOR DRIVERS WITH ACQUIRED BRAIN INJURY

  Brith Klarborg¹, Harry Lahrmann², Niels Agerholm², Nerius Tradisauskas², Lisbeth Harms¹
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  ABSTRACT: Intelligent Speed Adaptation [ISA] has proved successful at reducing the speed of normal drivers. However, until now the potential of ISA as an assistive device has been neglected. Two case studies were conducted to test ISA as a support for drivers with acquired brain injury [ABI] in driving with appropriate speed and thereby releasing cognitive capacity for other aspects of driving. The participants were two persons with ABI, who had retained their driving licenses. They were interviewed about their driving strategies before installation of ISA, and about their experience driving with ISA after the test period. The effect of ISA on the participants' speed is analyzed and combined with their evaluation of the utility of ISA. The results suggest that with further customisation ISA may be a suitable "cognitive prosthesis" for drivers with ABI, but with some reservations towards certain cognitive deficits.
• Source

  Available from: aau.dk

  Article: Preliminary results from the Danish ISA project Spar Paa Farten-Behavior

  Niels Agerholm, Nerius Tradisauskas, Lisbeth Harms, Harry Lahrmann
• Source

  Available from: aau.dk

  Article: HOW INTELLIGENT SPEED ADAPTATION AFFECTS COMPANY DRIVERS'ATTITUDES TO TRAFFIC RELATED ISSUES

  Niels, Nerius Tradisauskas, Harry Lahrmann
• Source

  Available from: aau.dk

  Article: Intelligent Farttilpasning i firmabiler-endelige resultater

  Forfattere : Adjunkt, Niels Agerholm, Agerholm@plan Aau Dk, Ph D-Studerende, Nerius Tradisauskas, Nerius@plan Aau Dk Lektor, Harry Lahrmann, Lahrmann@plan Aau Dk
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  ABSTRACT: I dette paper fremlaegges de endelige resultater for Intelligent Farttilpasning projektet 'Spar på Farten -Tab ikke kunder i svinget' og mere konstant over tid. Andelen af den kørte distance, hvor hastigheden var over 5 km/t over hastighedsgraensen blev i gennemsnit reduceret fra 17 til 4 %, hvor chaufførerne havde identificeret sig, mens der blev konstateret en minimal stigning fra 17 til 19 %, hvor chaufførerne ikke havde identificeret sig.