When a train is approaching, the system uses bluetooth technology to alert nearby pedestrians at crosswalks with an audible message: "caution METRORail approaching."
BPAS is being installed at the intersections of Main Street at Lamar and Fannin at Sunset.
METRO is making additional safety improvements with new fencing, warning signs and painting crosswalks red.
RELATED: Houston METRO unveils new safety fix
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