🛤️|🚩

#railway semaphore #train signal #railroad signal #mechanical signal #track signal #signal arm

🚦🛤️🚆

#railway signal #train signal #track signal #color light signal #railroad signal #train traffic light

🚦🚂🛤️

#railroad signal #train operations #railway signalman #train dispatcher #railroad crossing #train control

🔴🟡🟢🚂

#railroad signal #RYG signal #train signal light #signal aspect #train control #railway signal