The majority of motor vehicles in school zones exceed the speed limit, according to a national survey released by the National SAFE KIDS Campaign. Pedestrian injury is the second leading cause of unintentional injury-related death among children ages 5 to 14. Motor vehicle crashes account for approximately 80 percent of all childhood pedestrian deaths, with children ages 5 to 9 at highest risk. Children are vulnerable to pedestrian death because they face traffic threats that exceed their cognitive, developmental, behavioral, physical, and sensory abilities. Speed also plays a key factor in pedestrian injury. The national survey was based on analysis of vehicles traveling in 63 school zones in 29 cities in September 2000. SAFE KIDS coalitions and local law enforcement observed vehicle speeds using speed-measuring devices during 30-minute time periods before and after school, the busiest traffic times for children who walk to school. A total of 16,714 vehicle speeds were captured. The findings indicated that the majority of drivers speed in areas where children most frequently walk:  Sixty-five percent of drivers were traveling over the speed limit.  Nearly 25 percent of drivers were traveling at least 10 mph above the speed limit.  Five percent of drivers were traveling at least 20 mph the speed limit.