"The older population (>65 years) numbered 36.8 million in the United States in 2005. By 2030, the number is estimated to be 71.5 million, almost twice as many. An increase in the older population means an increase in older drivers as well. As a result of the natural aging process, the possibility of older drivers being involved in crashes and sustaining severe injuries increases, according to past findings. The objective of this study was to identify characteristics of older drivers involved in crashes in Kansas as well as associated safety issues, which can be used to suggest potential countermeasures for improving safety"--Technical report documentation page

The percentage of the U.S. population aged 65 years or older is increasing rapidly. Statistics also show this age group was 14.9 percent of the population in 2015 and is expected to be 20.7 to 21.4 percent for the years 2030-2050. Kansas has similar statewide trends with its aging population. Therefore, identifying issues, concerns, and factors associated with severity of older-driver crashes in Kansas is necessary. The Kansas Crash Analysis and Reporting System (KCARS) database maintained by Kansas Department of Transportation was used in this study to identify older-driver crash characteristics, compare older drivers with all drivers, and develop crash severity models. According to KCARS data, older drivers were involved in more than one in five fatal injuries out of all drivers in Kansas from 2010 to 2014. When compared with all drivers, older drivers were overly represented in fatal and incapacitating injuries. The percentage of older-driver fatal injuries was more than the twice that of all drivers. When compared with all drivers, older drivers were involved more often in crashes at four-way intersections, on straight and level roads, in daylight hours, and at a stop or yield signs. An in-depth crash severity analysis was carried out for the older drivers involved in crashes. Three separate binary logistic regression models were developed for single-vehicle crashes where only the older driver was present (Model A), single-vehicle crashes involving an older driver with at least one passenger (Model B), and multi-vehicle crashes involving at least one older driver (Model C). From the crash severity analysis, it was found that left turns were significant in changing the crash severity for Model A, but it was not significant in model B, meaning that older drivers may be safer with passengers. For Model B, none of the passenger attributes were significant, though it was originally developed to identify passenger attributes. Gender of the older driver was not significant in any model. For all models, variables such as safety equipment use, crash location, weather conditions, driver ejected or trapped, and light conditions distinguished crash severity. Furthermore, for Model A, variables such as day of the week, speed, accident class, and maneuver, distinguished crash severity. Moreover, accident class, surface type, and vehicle type changed crash severity in Model B. Number of vehicles, speed, collision type, maneuver, and two-lane roads were significant in Model C.A road-user survey was also conducted to identify habits, needs, and concerns of Kansas' aging road users since it was not advisable to conclude safety factors solely on crash data. The probability of occurrence was calculated by taking the weighted average of answers to a question. Then a contingency table analysis was carried out to identify relationships among variables. For older drivers, seatbelt use as a driver had the highest probability of occurrence. Driving in heavy traffic, merging into traffic, moving away from traffic, and judging gaps were dependent on age group. Findings of this research gave an understanding of older-driver crashes and associated factors. Since more than 85 percent of crash contributory causes were related to drivers, driver awareness programs, driver licensing restrictions, providing public transportation, and law enforcement can be used as countermeasures. Accordingly, results of this study can be used to enhance older-driver safety and awareness programs.

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 348: Improving the Safety of Older Road Users examines programs and policies in place across the country to improve the safety and mobility of older road users. The report documents a range of strategies and related programs under way in roadway engineering, driver licensing, public information and education, and enforcement and adjudication.

By the turn of the century, the elderly will comprise about 20 percent of the population in North America, and 28 percent of those who drive. Place this percentage in high-powered automobiles, and the need for planning and policy development becomes evident. Most standard research on elderly drivers has not gone beyond gathering data on specific situations or characteristics. This book rises beyond simple statistical presentation. It blends sociological insight with statistical detail to produce an absorbing description of the elderly drivers' daily lives, driving styles, experiences with accident and injury, social relationships, and life aspirations. It also describes areas of neglect: imagined and real health problems, driving exposure and traffic violations, accidents, and loss of self-esteem. It presents In-depth accounts of the trauma of loss of license and the Importance of the automobile for sustaining mental, physical, and social well being. The self-Imposed or self-defined rules elderly drivers use to navigate traffic or compensate for physical frailities are described in depth. The Safety of Elderly Drivers Includes penetrating comments from elderly drivers who have been involved in serious accidents, and from random elderly drivers speaking for their generation of drivers. Integrating statistical findings based on Motor Vehicle Department accident data and survey data with comprehensive interviews and discussions with elderly drivers. the book provides an emperically grounded. In-depth view of the elderly driver today. Rothe summarizes theories and models of aging. along with past research on elder[y drivers. projecting what the future may hold If present trends in medicine. housing. politics. migration. and mass transit continue. It closes with a series of recommendations for future traffic planning. This book will be of Interest to policymakers concerned with traffic safety, as well as social scientists and others Interested In gerontological issues.

As people age, their physical, visual, & cognitive abilities may decline, making it more difficult for them to drive safely. Older drivers are also more likely to suffer injuries or die in crashes than drivers in other age groups. These safety issues will increase in significance because older adults represent the fastest-growing U.S. population segment. This report examined: (1) what the fed. gov¿t. has done to promote practices to make roads safer for older drivers & the extent to which states have implemented those practices; (2) the extent to which states assess the fitness of older drivers & what support the fed. gov¿t. has provided; & (3) what initiatives selected states have implemented to improve the safety of older drivers. Includes recommendations. Illustrations.