The effect of hearing loss on driving performance and experience of navigation system

Download

A field study was conducted to evaluate the use of an additional tactile signal in a navigation system and to examine the effect of hearing loss on driving behavior. 32 participants took part in the study, whereof 16 with normal hearing and 16 with moderate hearing loss.

The participants performed two preprogrammed navigation tasks. In one they received only visual information from the navigation system and in the other there was an additional vibration in the seat to guide the driver in the right direction. Both routes included two levels of driver workload. The order of which the systems were tested as well as the order of workload level was balanced over the participants.

Pretest included hearing screening of normal hearing participants, verbal ability test and KIPS test battery for cognitive performance. During the run an on-road protocol was used to evaluate driving performance. A VBOX was used to measure speed and record the route with a video camera. SMI glasses were used for eye tracking, which means the field of view was recorded with a marker showing where the driver is looking. Predefined targets will be analyzed, e.g. the mirrors and the speedometer. A questionnaire including questions about the experience of the two navigation systems was given to the drivers afterwards.

Analysis continues but preliminary results indicate that hearing loss is associated with lower speed, higher satisfaction with the additional tactile signal and more glances in the rear view mirror. 

MEET US


13-14
Jun

The 6st Humanist Conference

The 6th HUMANIST Conference will take place 13-14 June 2018 in the Hague, The Netherlands. The scope of the conference covers a wide range of topics on Human Factors in Transport. Tania Willstrand and Alexander Eriksson will present their research results.

LATEST NEWS


2018-04-17

VTI will develop simulators for ambulance staff

VTI has initiated a pilot study for paramedics with the Centre for Teaching & Research in Disaster Medicine and Traumatology and Linköping University. The aim is to give ambulance staff the opportunity to practice critical medical tasks in a moving vehicle in...


2018-04-12

Unique electrified road opens in Sweden

The world’s first electrified road recharging the batteries of cars and trucks while driving opened in Sweden. The Swedish Minister for Infrastructure, Tomas Eneroth, was at the formal inauguration of the electrified road on April 11, 2018. VTI is one of 22...


2018-04-11

Swedish road safety spreads internationally

Sweden is a leading country in terms of road safety, and the research conducted by the Swedish National Road and Transport Research Institute (VTI) has contributed to increased safety. VTI’s remit includes disseminating research results and keeping up to date...


2018-04-06

A greater understanding of cyclists' behaviour

Cyclists are often accused of not following traffic rules and being hooligans on the road. New research shows that there is no support for this perception. "Our observations reveal no such general anarchy" says Sonja Forward, researcher at VTI.


2018-03-28

New technology for road surface measurement tested

VTI has tested a new scanning-laser technology for road surface measurement. The tests show the new technology for comprehensive transverse-profile measurement provides dependable values in measuring transverse profile and rut depth.


2018-03-15

Ulf Sandberg has been presented with the TTI Lifetime Achievement Award 2018

VTI’s Senior Research Leader Ulf Sandberg has been presented with the TTI Lifetime Achievement Award 2018 for his work on research into tyres and road surface.