When a straight track splits up
in two different directions with equal radii, the layout is known as a
symmetrical split (Fig. 15.3). In other words, a symmetrical split is a
contrary flexure in which the radii of the two curves are the same. The salient
features of a symmetrical split are the following.
layout consists of a pair of points, one acute angle crossing, four curved lead
rails, and two check rails.
layout is symmetrical about the centre line. This means that the radii of the
main track as well as of the branching track are equal.
layout provides facilities for diverting vehicles both towards the left and the
(d) It is
suitable for locations with space constraints, as it occupies comparatively
much less space than a turnout from the straight track.