Effect of multiple traffic information sources on route choice: A driving simulator study

With the arrival of new technologies more en-route traffic information sources have become available, especially in-car information sources. The aim of this study is to gain more insight into the effect of multiple, and possibly conflicting, sources of information on route choice and driver behaviour. In a driving simulator experiment,...

Towards a real-time driver workload estimator: An on-the-road study

Driver distraction is a leading cause of crashes. The introduction of in-vehicle technology in the last decades has added support to the driving task. However, in-vehicle technologies and handheld electronic devices may also be a threat to driver safety due to information overload and distraction. Adaptive in-vehicle information systems may be a...

Assessing e-mail intent and tasks in e-mail messages

In this paper, we analyze corporate e-mail messages as a medium to convey work tasks. Research indicates that categorization of e-mail could alleviate the common problem of information overload. Although e-mail clients provide possibilities of e-mail categorization, not many users spend effort on proper e-mail management. Since e-mail clients...

Context-aware notification for mobile police officers

To minimize unwanted interruption and information overload during surveillance, mobile police officers need to be supported by a mobile, contextaware notification system. This system adapts message presentation to message priority and context of use. A prototype is designed and evaluated in a simulated surveillance task, requiring users to...

Tactile displays for navigation and orientation: Perception and behaviour

Perceiving and understanding information of, for example, a visual navigation display may be difficult for people with a visual challenge or in situations where the user's visual sense and cognitive resources are heavily loaded. Developing information presentation schemes that reduce the threat of overloading eyes and mind becomes increasingly...

Multimodal interfaces: A framework based on modality appropriateness

Our sensory modalities are specialized in perceiving different attributes of an object or event. This fact is the basis of the approach towards multimodal interfaces we describe in this paper. We rated the match between 20 possible information attributes (common in human computer interaction) and the visual, auditory and tactile sensory systems....

Validation of principles for tactile navigation displays

Access to navigation information rapidly becomes standard in many situations, for example through GPS receivers and collision avoidance systems in cars. However, perceiving and processing the information may result in overloading the userÆs visual sense and cognitive resources. Intuitive navigation information presentation concepts using the...

Cognitive task load in a naval ship control centre: From identification to prediction

Deployment of information and communication technology will lead to further automation of control centre tasks and an increasing amount of information to be processed. A method for establishing adequate levels of cognitive task load for the operators in such complex environments has been developed. It is based on a model distinguishing three...

Tactile melodies in user interfaces

The application of dynamic vibrotactile displays in user interfaces is still a rare situation. There are, however, several important advantages of using the sense of touch as an information channel, especially in relation to overloaded or unavailable visual and auditory channels. We propose here to make good use of the qualities of the sense of...

Training teams for emergency management

Emergency management (EM), the decision making involved in directing the relief operation after a disaster or otherwise catastrophic accident is an issue of great public and private concern because of the high stakes involved. Due to the nature of emergencies, and especially mass emergencies, EM teams are faced with decision making in stressful...