Complex sentence: Using funding from the American Recovery and Reinvestment Act of 2009, the MBTA is conducting a pilot test of technology similar to a collision avoidance system in an automobile, using radar and increasingly fast beeping to warn train operators of obstacles ahead.
Split into simpler sentences: Using funding from the American Recovery and Reinvestment Act of 2009, the MBTA is conducting a pilot test of technology similar to a collision avoidance system in an automobile. It would use radar and increasingly fast beeping to warn train operators of obstacles ahead.