Runways at U.S. airports are getting safer, according to a recent FAA report. The agency said the number of incursions dropped 20 percent over a four-year period, to 324 last year, of which 32 were characterized as “high risk.” The number of “high-risk” incidents has dropped 50 percent since 2000, the report shows. According to the report, there were 15 fewer incursions and five fewer high-risk events last year than there were the previous year. Between January 1 and August 31 this year, the FAA recorded 191 incursions, six fewer than the number reported in the same period last year. The FAA attributes the improvement to pilot awareness programs and the deployment of new airport-movement and surface-detection equipment. To prevent runway accidents, the FAA has delivered new technology called the Airport Movement Area Safety System (AMASS) to 34 airports, and is deploying the new Airport Surface Detection Equipment Model X (ASDE-X) at another 25 airports.