page_title: General Railway Signal
section_title: Products
hierarchical_section_title: General Railway Signal / Products
caption_attribution_description: English: View of GRS Model 2 unit lever type interlocking machine, in combination with operating switchboard and indicator groups.
context_page_description: General Railway Signal Company was a supplier of railway signaling equipment, systems and services in the Rochester, New York area. The company was established in 1904 and became part of Alstom Transport in 1998. GRS was a member of the Dow Jones Industrial Average from 1928 to 1930.
context_section_description: Carborne signaling equipment
  Automatic Train Control (ATC)
  Automatic Train Protection (ATP)
  Automatic train stop (ATS)
  Wayside signaling equipment
  DC code systems
  electronic communication systems
  electronic interlocking
  relays
  signals
  switch machines
  track circuits
  trip stops
  yard retarders
  Central Control signaling equipment
  computer-based Manual Control Systems
  computer-based Traffic Management Systems
  dark territory control systems
  electro-mechanical centralized traffic control (cTc) machines
  yard control systems
caption: GRS Model 2 interlocking machine. (1915).
exif: {}