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The Metrom Rail Crossing Warning Enhancement System (CWE) functions as an overlay or backup to existing legacy crossing systems. In the case of a failure to initiate or late-to-initiate crossing command, the CWE system will provide the existing crossing gate controller a timely command to lower the gates through an existing auxiliary input channel.
This system is independent of legacy systems and utilizes its own sensors, electronics, communication links, and power backup systems. The approach sensors and wireless communication links are solar powered with battery backup for simple, fast installation.