Evaluation of methods for the assessment of minimum required attention

Download

The empirical methods eye tracking while driving, visual occlusion while driving, think aloud while driving, expert judgement in the laboratory and think aloud while watching video are evaluated for their usefulness to assess driver attention in real traffic. Using a within-subjects design, six driving instructors drove three 14-kilometre-laps on a motorway per driving condition. Additional participants took part in sub-sets of the conditions. The methods were evaluated both with respect to practical implications and to the results that could be obtained with them. Glance behaviour and self-paced visual occlusion varied between different manoeuvre types (lane change – two directions, driving in left or right lane) and also between drivers. For the assessment of the attentional requirements of different traffic situations it is recommended to identify “situational prototypes” and related manoeuvres. The attention assessment should then be made with eye tracking in combination with visual occlusion, complemented with the think aloud technique. It is important to consider inter-individual variations in the process of identifying general attentional requirements for a prototypical situation/manoeuvre combination. Information about surrounding traffic needs to be obtained for a correct assessment. Preliminary results indicate that it is important to adopt a manoeuvre-oriented view, for example when identifying visual targets, instead of using a static gaze target classification scheme.

MEET US


25-26
Apr

Cost Benefit Analysis (CBA) workshop in Stockholm

An open seminar and workshop in Stockholm will be held on 25-26 April 2018. The workshop deals with the use of CBA as a basis for decision-making in the public sector. The workshop is organized by, among others, Professor Jan-Eric Nilsson, VTI.

LATEST NEWS


2018-02-19

Modal shift for an environmental lift?

Investigations in Sweden and other countries suggest a shift of goods transport from road to rail and waterborne transport to reach environmental and climate objectives. VTI is leading a new project to investigate how the modal shift can contribute and what...


2018-02-13

Automation and digitalisation are making rail competitive

Road transport is developing rapidly and its productivity has increased sharply. Rail transport, however, has not developed at the same rate. Automation and digitalisation are essential if rail freight in Europe is to survive.


2018-02-08

New research is creating a driverless logistics chain

The research project Born to Drive has come up with a system that allows new cars to move, without a driver, from the production line out to the parking area prior to being transported elsewhere. The vision is to automate the entire logistics chain from...


2018-02-05

VTI testing automation in EU project

VTI is leading a series of tests in a major EU project on automated driving. The first driving tests were carried out n a test track in Slovenia in December. The project will focus in part on acceptance among different groups in society, in part on...


2018-02-02

Freight transportation on road and rail analysed

Freight transport accounts for a large proportion of the emissions, noise and congestion produced by road traffic. Transporting freight in larger but fewer lorries could reduce the problem. At the same time it might entail freight being diverted from more...


2017-11-30

Millions for research into maritime transport and the environment

Maritime transport is a major source of emissions of harmful air pollutants and carbon dioxide. In a new project, a research team from the Swedish National Road and Transport Research Institute (VTI) and the University of Gothenburg has received SEK 6.4...