Abstract
This paper develops a method for determining the expected value of the average loss of life quality caused by serious non fatal traffic accidents. These are injuries which require at least one overnight stay in hospital. The usefulness of Quality Adjusted Life Years (QALY) and Health Utility index approaches are discussed first. The Expected Value Method is then presented. This determines the marginalrate of substitution of wealth for risk of serious traffic injuriesrequiring hospitalisation, from the "willingness to pay" value of statistical life. It determines the expected loss of life quality under different assumptions, using information on probabilities of zeroand very low level of impairment.