A brief summary of current research.
Driving and community integration after traumatic brain injury
Rapport, L. J.; Bryer, R. C.; Hanks, R. A. 2008 Arch Phys Med Rehabil, 89(5):922-930.
In a study that examined survivors of brain injury anywhere from three months to 15 years after injury, researchers found that 45 percent had resumed driving. Nearly half of the non-drivers wanted to start driving again. Those who wanted to drive again generally rated themselves as currently fit to drive; however, their cognitive skills were lower than the driver group, reflecting a lack of awareness of their problems. Non-drivers were not as involved in community activities such as shopping and running errands as the drivers. Non-drivers did use other forms of transportation (such as busses or walking) but this did not seem to help them increase their rate of involvement in community activities.