[1] Intentional traffic collisions may be a chosen method of suicide where speed limits are high enough to produce fatal deceleration.
[9] Impact velocity may be maximized by exceeding speed limits or by maneuvering into a head-on collision with a heavier and less maneuverable vehicle like a bus or semi-trailer truck.
[7] Aside from use for premeditated suicides, as commuters spend more time driving, vehicles may be available at the instant of a momentary and temporary impulse towards self-destruction fueled by road rage.
Unmeasured suicides in empirical data used to evaluate traffic safety measures will result in systematic underestimation of effectiveness for non-suicidal road users.
[7] People can also stand or walk in front of oncoming traffic; this is different from insurance fraud as the person in question is trying to intentionally cause fatal bodily injuries to themselves.