ABSTRACT
A cursory examination of the relevant literature provides ample evidence that fatigue is a problem for the driving public. The aim of a driver impairment monitoring (DIM) system is to supplement the process of self-monitoring. Increasing levels of fatigue reduce the precision of drivers' ability to self-monitor performance, to predict the ability to continue, and to estimate the appropriate point to discontinue. A solution to the acceptability problem is to remotely monitor physiological properties without the physical attachment of electrodes to the driver. The current study is concerned with measures of primary vehicle input as indicators of driver fatigue. Candidate measures of vehicle input may be categorized as either concerned with lateral control of the vehicle. A large amount of research has focused on steering control as a means of detecting driver drowsiness. Impaired driving may also be assessed by measuring the sensitivity of speed control.
