BALTIMORE (AP) The Maryland State Highway Administration said crashes, fatalities and injuries in highway work zones are at a 10-year low.

Based on data from the last three years, the state said fatalities in work-zone crashes decreased by more than half. There were nine fatalities in 2009 compared with three in 2011. The number of people injured decreased from 827 to 688.

Overall, there were 200 fewer crashes between 2009 and 2011.

The highway administration is crediting its Maryland SafeZones program with automated speed enforcement cameras for the decline. Since the program launched in 2010, speeding violations in construction zones have decreased more than 80 percent.

The state currently has speed cameras in work zones on I-95 and I-695 in Baltimore County, I-70 in Frederick County, I-495 in Montgomery County and elsewhere.

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