Top Mainline (8a) is set for East to
West trains. Bottom Mainline (8) is set for West to East trainsSingle Track Mainliine Crossover Interlock
Closed
Top Mainline (8a) is set for East to
West trains. Bottom Mainline (8) is set for West to East trains
Thrown
Top Mainline (8a) is set for West to
East crossover. Bottom Mainline traffic is stopped to allow crossover trains
running West to East