ground frame


Porthmadog Ground Frame on the Ffestiniog Railway in Wales


ground frame (plural ground frames)

  1. (rail transport) A lever frame controlling the operation of points and/or signals which is installed at ground level.
    • 2019 October, James Abbot, “Esk Valley revival”, in Modern Railways, page 78:
      At the western [actually eastern] end of the line, operation of the ground frames at Grosmont and Whitby for NYMR [North Yorkshire Moors Railway] services is time-consuming: if we could speed that up, we'd improve track occupancy. Motorising points is quite easy to do.