level crossing warning signal usa crossbuck notice and red traffic light rail road intersection california railway |
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| navigate by keyword : abstract alarm america arm attention awareness azure barrier bell blinking california caution crossbuck crossing crossroad crosswalk danger flash gate guarding hazard horn information infrastructure intersection junction level light mechanism metaphor pillar post prevention rail railroad railway red ringing road roadside safety semaphore sign signal signpost states station stop sunshine symbol track traffic train tram transportation trip united usa warning |
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| Level crossing warning signal in USA. Crossbuck notice and red traffic light on rail road intersection in California. Railway transportation safety symbol. Caution sign about hazard and train track |
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