Review of exposure data base from the survey of day-to-day travel in Australia 1985-1986.

This report evaluates the quality of the risk exposure data base derived from the Survey of Day-to-Day Travel in Australia 1985-1986. Repunching a 1.6% sample of the survey forms and comparing with the original data sets revealed a less than 1% error rate. Car licence and car driver information had an acceptable error rate but was less accurate than the main body of data. See also B 28431.