The DRIVE Project V1004 is concerned with the possibility of monitoring unobtrusively driver status. In order to ensure that measures to be incorporated in DREAM (Driver Related Evaluation And Monitoring) are appropriate, all measures available are examined. The study has two main components: an assessment of the state of the art, and the use of experiments by a number of participating institutes to demonstrate the effectiveness of the various techniques currently employed. It is possible to determine what future work may be required for the development of performance measures and sensors for incorporation in a vehicle mounted monitoring device. The report gives a detailed description of the work involved in the proposed development and the means to construct the device itself. Some of the potential problems are discussed and their solution. The importance of DREAM for the road transport informatics environment is discussed. It is proposed that the device should operate using a neural network with the capability of being able to handle the numerous signals adaptively and in real time.