Four years after one of its bus drivers fatally collided with two women in a downtown Portland crosswalk, TriMet is testing a few devices that use sounds and lights to show when a bus is turning.
One uses flashing LED strobe lights and the announcement "pedestrians, bus is turning," repeated twice by the voice of a slightly alarmed woman. Another uses only a softer audio warning: "caution, bus is turning" three times. They started operating on 45 buses on five of TriMet's frequent service lines on Monday: the 4, 8, 15, 33 and 75.
The folks at Oregon Public Broadcasting uploaded each file to Soundcloud for easy testing over the web. Here's the first one, which isn't being tested with LED accompaniment: