ChangeMarker

Marks a <i>spot location</i> from where a quality like a speed, gradient or ATP control changes. A<i> physical track side signal</i> may be present at this location. This signal need not be positioned exactly where the quality changes.

ChangeMarker

Marks a <i>spot location</i> from where a quality like a speed, gradient or ATP control changes. A<i> physical track side signal</i> may be present at this location. This signal need not be positioned exactly where the quality changes.