ABSTRACT
In North America, the dramatic aging of the population has led to older drivers being the fastest
growing segment of the driving population (1). Currently, there are 23 million licensed drivers over
the age of 65 years in the United States and this number is expected to increase in the next few
decades (2). In addition, trends indicate that not only are older adults increasing the number of miles
driven per year (3), they also are driving longer into old age. For instance it is estimated that at age
70, older adults can expect about 11 years of driving life expectancy (4). Thus, over the next few
decades, there will be a greater number of older adult drivers on our roadways.
