Driver Attention Demand and Adaptive Information Management

摘要

The road system has seen a recent influx in Intelligent Road Information Systems (IRIS)rnin terms of Intelligent Infrastructure and Intelligent Vehicles. Although these devices arernintended for the safe and efficient operation of the road system, there is increased concernrnthat they may lead to high driver workloads and driving errors. Road safety practitionersrnhave been striving to develop a driver interface, which could schedule information fromrnthe various devices for presentation to the driver so that driver capacity is not exceeded.rnThis requires knowledge about the driver's workload limit, and the level of workloadrnfrom all sources.rnGenerally, the assessment of workload has been a problem in many workloadrnapplications, mainly as a result of the multifaceted nature of the workload concept. Usingrna driver workload model that combines road complexity with operating speed, thisrnresearch proposes a driver interface that is more in line with the way the driver adapts therndriving task with speed management strategies.rnWith knowledge about driver workload determinants, the proposed interface gives speedrnmanagement instructions to the driver in order the keep workload within the driver'srnlimit. Vital operational and safety information no longer have to be postponed as it isrnnormally done in interface design. The driver can be instructed to reduce speed to receivernvital information from one of the sources (e.g., a cell phone) of the system.rnThe proposal is theoretical. The process needs further experimentation and verification.