Index to pages

  1. D F Sarmiento (Buenos Aires Western)
    1. Francisco Alvarez
  2. Gen. Belgrano (Cordoba Central)
    1. Alto Cordoba
    2. Sal Dias
  3. Gen. Mitre (Central Argentine)
    1. Belgrano 'C'
    2. Ludvena
    3. Retiro No1
  4. Gen. Roca (Buenos Aires Great Southern)
    1. La Plaza
    2. Plaza Constitucion
    3. Ringulet
    4. Spurr
    5. Vila Elisa
  5. Gen. San Martin (Buenos Aires & Pacific)
    1. Gallo Junction
    2. Retiro
  6. Gen. Urquiza (Central Buenos Aires)
    1. El Cano

The signalling and signal boxes in Argentina is of considerable interest to the British signalling historian. The vast majority of signalling equipment in this country was sourced from the United Kingdom, most coming from the Railway Signal Company in Liverpool.

Argentina as a country was not slow to adopt interlocking and the block system, nor was it slow to adopt power signalling and a healthy number of pneumatic installations were commissioned after the turn of the century.

Semaphore signalling comprised conventional lower quadrant semaphores, mounted on lattice posts or steel gantries. Three-position upper quadrant signals were introduced at some power installations.

With the fall in the country's economy over the years, the investment in signalling has fallen dramatically. This is a double-edged sword - on one hand much of the mechanical signalling survives, but conversely it has been allowed to fall into an appalling state of repair at many locations. Indeed, it is not unusual to see trains on overgrown lines being signalled past mechanical boxes by flag as the signals and block instruments do not work.

Additional notes by Frank Nicholas