AREMA C&S
Wayside signals
Grade crossing warning systems
Track circuits
Switch machines
Relay & electronic interlockings
PTC interfaces
Megger / insulation testing
Relay logic
LED signal modules
FRA Part 234/236 awareness
Blue flag / RWP
Electrical troubleshooting
Apprentice mentoring
Relay & electronic interlockings
SCADA / CTC basics
Signal cable splicing & termination
Hi-rail vehicle operation
Predictor & motion-sensor tuning