Subjgrp 109. Track Circuits
- § 236.51 - Track circuit requirements.
- § 236.52 - Relayed cut-section.
- § 236.53 - Track circuit feed at grade crossing.
- § 236.54 - Minimum length of track circuit.
- § 236.55 - Dead section; maximum length.
- § 236.56 - Shunting sensitivity.
- § 236.57 - Shunt and fouling wires.
- § 236.58 - Turnout, fouling section.
- § 236.59 - Insulated rail joints.
- § 236.60 - Switch shunting circuit; use restricted.