The orderly presentation needed to let people comfortably and succesfully navigate in an environment. Signage is just one tool used to communicate that information.
encyclopedia
WAYSIDE CONTROL SYSTEM
A command and control system in which transit units (cars or trains) are controlled by electronic or mechanical devices along the track or other guideway. (TRB)
WAYSIDE EQUIPMENT
Train control or movement apparatus which is located along the track or wayside as opposed to the control center or other remote location. (NTSC)
WAYSIDE INTRUSION DETECTION SYSTEM (WIDS)
Safety/security system on the Green Line detecting unauthorized intrusion into the right-of-way.
WAYSIDE PUSH-BUTTON
A device for selecting rail vehicle routes.
WAYSIDE RESTRICTION
Operating instructions issued by the Central Control Facility (CCF) to rail personnel advising of conditions affecting normal rail operations.
WAYSIDE SIGNAL
In rail operations, a fixed signal that is located along the track right-of-way. (TRB)
WAYSIDE TRAIN STOP
A mechanical arm located on the wayside which, when in the up (trip) position, initiates an emergency brake application on a train which passes it. (NTSC)