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The objectives of this study were to develop and apply procedures for defining pedestrian safety zones for the older (age 65+) adult and to develop, implement and evaluate a countermeasure program in the defined zones. Zone definition procedures were applied to two cities: Phoenix and Chicago. Extensive countermeasure programs were implemented in both cities. A complete crash-based evaluation was conducted only for the city of Phoenix where data showed significant reductions in zone crashes to 65+ pedestrians over a period in which the city's population and overall pedestrian crashes increased. It was concluded that the zone process resulted in an effective and efficient means of deploying pedestrian countermeasures for the older adult.

The authors have reviewed the state-of-the-art with respect to the health effects of long term exposure to whole-body shock and vibration. After analyzing the epidemiological and data availability problems of conducting definitive research into the relationship between long-term exposure to shock and vibration and the health of truck drivers, they describe the requirements for a feasible, scientifically sound epidemiological research program that can be implemented incrementally.