Detection and identification of information presented peripherally inside the car: effects of driving task demands, stimulus position and direction of motion of the stimulus

Download
Torbjörn Falkmer
Jan Törnros

The aim was to study the performance of an in-car information system relying exclusively on information presented peripherally by “running light” stimuli. The information was presented on displays placed in four different positions; upper, lower, to the right, and to the left. Four different directions of the “running light” were used; upwards, downwards, to the right, and to the left. Two levels regarding driving task demands were used.

Thirty-two subjects participated in the study. A repeated-measures design was used. The study was performed in an advanced driving simulator. The subjects’ task was to report the direction of motion of the peripheral stimuli as quickly as possible.

A traffic situation with high demands on the driver caused the subjects to fixate the peripheral stimulus to a lesser extent than when the driving task was less demanding. The upper display was fixated to a smaller extent than the left or the right one. However, differences in number of fixations between the displays appeared only when the demands of the driving task were high, not when they were low. No effects of the direction of motion of the stimulus on the number of fixations appeared.

There were very few errors regarding the identification of the direction of the stimulus, regardless of whether the stimulus was fixated or not.

The response times were short. There were differences between display positions. The response time was shortest for the right display and for the lower display, but somewhat longer for the other two displays. It was somewhat shorter when the stimulus was fixated than when it was not. Driving task demands had no effect on response time. Regarding effects of the direction of motion of the stimulus, there was only a very weak interaction with driving task demands and display position.

MEET US


7
Dec

Shipping and the environment – research meets reality

Centre for Transport Studies (CTS) in co-operation with Ports of Stockholm invite you to the seminar Shipping and the environment – research meets reality.

LATEST NEWS


2017-10-26

Simulation of cut-in by manually driven vehicles in platooning scenarios

A study in a VTI-driving simulator has showed that a platoon will be able to handle a cut in from a manually driven car. The results of this study have recently been presented at two conferences in Japan.


2017-10-16

ERPUG Forum

The five-year anniversary of European Road Profile Users' Group (ERPUG) Forum will take place at Ramboll head quarter, Copenhagen, Denmark October 19-20, 2017.


2017-09-29

Self-driving buses in Sweden next year?

A self-driving, fossil-free bus. This idea might become reality through a forthcoming collaborative project involving the Swedish National Road and Transport Research Institute (VTI), Linköping University and several other participants. The project group aim...


2017-09-29

New climate-proof solutions for hard surfaces in cities

High-density road infrastructure that emphasise maximum durability and minimum maintenance create inflexible systems, which put increased stress on urban trees and lead to increased risk for flooding. Over the past five years, the ‘Climate-proof solutions for...


2017-09-29

VTI is preparing for automated vehicles

Automation of traffic systems will lead to major changes. The European Union’s (EU) CoEXist research project began in June 2017 with the aim of preparing cities and road operators for the introduction of self-driving vehicles. The Swedish National Road and...


2017-07-05

Vehicle Driver Monitoring: sleepiness and cognitive load

To prevent road crashes it is important to understand driver related contributing factors, which have been suggested to be the critical reason in 94 per cent of crashes. The overall aim of the project Vehicle Driver Monitoring has been to advance the...