Speeding through school zones has resulted in stiff fines in many communities, but there is another driving behavior around schools detailed in the journal Traffic Injury Prevention and it involves parents dropping off or picking up students. Researchers analyzed traffic behavior at five hundred schools, identifying double parking, not obeying traffic controls and other unsafe behavior, including cell phone use. The most observed risky behavior was dropping off students on the opposite side of the street, leaving them to cross the street with no traffic controls. The Canadian study found risky driving behavior during school drop-offs also increases vehicle collisions. It recommends redesigning parent parking and drop-off zones.