The effects of involvement in a fatal accident on surviving drivers' s
ubsequent driving behavior were studied. The quantity (mileage) and qu
ality of driving (offences in driver records) of 245 surviving drivers
were compared in three-year periods before and after the accident. A
random sample of 253 drivers from the driver register were additionall
y used as controls. The data showed that about half of the car drivers
decreased their driving, with greater reductions being associated wit
h more serious injuries. However, the total number of convictions did
not reduce but even showed a tendency to increase in proportion to the
amount of driving. The proportion of car drivers with post-crash offe
nces was approximately constant (27-32%) independent of any change in
mileage. The data suggest that professional heavy-vehicle drivers incu
rred fewer convictions during the post-crash period in comparison to c
ar drivers. Thirty-seven surviving drivers were further interviewed on
the duration and specificity of the effects. With the exception of th
ree drivers, all said that the fatal accident had affected their drivi
ng behavior, but only for a relatively short time. Most commonly, the
drivers reported that the effect was limited to those circumstances an
d situations which led to the accident and did not generalize to safer
driving practices. This study suggests that car drivers, if not serio
usly injured, typically return to their 'normal' driving within a few
months, while heavy-vehicle drivers show a tendency towards more cauti
ous behavior after a fatal crash in terms of violations, presumably du
e to the continuous reinforcement which the latter receive in their wo
rk community. (C) 1997 Elsevier Science Ltd.