The report presents new estimates of road traffic risk of road user groups distributed by age and gender. Exposure data are collected from the National Norwegian Travel Survey 2001 and annual reports of transport performance in Norway given by the Institute of Transport Economics. Accident data are collected from the Central Bureau of Statistics (SSB) and from annual reports of road accidents collected by the major Norwegian insurance companies (TRAST). The results show that cyclists, motorcyclists and mopedists are most at risk. Young and elderly road users are more at risk than other age groups. The injury risk of motorcyclists has decreased during the 1990s; for other road traffic users road traffic risk has been fairly stable. The risk of personal injury is extremely much higher during week-end nights than at other times. The risk is also higher on stretches of road with low speed limits, and in the counties Østfold, Telemark and Aust-Agder.