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Question:
Railroad crossings with control devices to regulate traffic are known as active crossings. Control devices may include regulators such as flashing red lights, warning bells, and gates. Drivers are required by law to follow instructions given by control devices.
Comments
Alkam 2126
4 years ago
It a great app to study for your CDL tests
Cbow33
4 years ago
Great app
Livvy2u
4 years ago
Mom