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Glossary
Pages 54-55

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From page 54...
... Niche -- Indentation in a tunnel sidewall that provides a safe haven for authorized personnel working on the right of way to ensure clearance of oncoming vehicle traffic. Non-controlled track -- Track upon which employees, trains and roadway maintenance machines and equipment are permitted to move without receiving authorization from Rail Control Center.
From page 55...
... Watchperson/lookout -- Employee who has been annually trained and qualified to provide warning to roadway workers of approaching trains or on-track equipment. Should be properly equipped to provide visual and auditory warning, with whistle, air horn, white disc, red flag, lantern, or fuse.


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