LMS Route: Evesham to Birmingham
Barnt Green: mrbg615a
Close up of image 'mrbg615' showing the lower quadrant home
starter mounted on the up Redditch platform. The description 'lower quadrant'
refers to the position the signal arm. Both an upper and lower quadrant signal
are in the 'at danger' position when horizontal (as seen above). Lower quadrant
signals are lowered below the horizontal the when in the 'off' or 'all clear'
position, whereas upper quadrant signals are raised above the horizontal when
in the 'off' or 'all clear' position. The move by most railways (GWR excepted)
to adopt the upper quadrant signal as standard followed a serious accident
which was caused by snow preventing the arm to be raised back to the horizontal
or danger position. The signal box, just visible behind the group of passengers
standing on the down Redditch branch platform, was the third signal box at the
station and was opened on 28th November 1897 remaining in service until 1929
when it was replaced by an LMS model some one hundred yards further towards