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At some crossings there is an emergency plunger in a locked
cabinet next to the white-light post which you must use to operate
the crossing controls when:
• the level crossing equipment has failed, or
• the equipment has stopped working because it has been
operated for an unusually long time.
After you have operated the plunger, you may pass over the
crossing but before doing so, you must:
• treat the crossing as having failed
• sound the horn continuously until the front of your train is on the