Passive warning devices definition
Passive warning devices means those typos o f traffic control devices, in cluding signs, markings and other de vices, located at or in advance o f grade crossings to indicate the presence o f a crossing but which do not change aspect upon the approach or presence o f a train. Cj) "Active Warning Devices” means those traffic control devices activated by the approach or presence o f a train, such as flashing light signals, automatic gates and sim ilar devices, as well as manually operated devices and crossing watchmen, all o f which display to motorists positive warning o f the approach or presence of
Passive warning devices means those types of traffic control device, including signs, markings and other devices located at or in advance of grade crossings to indicate the presence of a crossing but which do not change aspect upon the approach or presence of a train;