31. After their son was born, Montgomery dropped off the European track circuit to help at home. 32. Track circuits are a means of detecting trains along a track section using an electric current.33. I have a lot of acquaintances on the track circuit but not a lot of friends. 34. Montgomery left the track circuit to be home for the first few weeks after the birth. 35. The track circuit circumference was 400 yards consisting of distances of 300, 525 and 715 yards. 36. DC immune AC coded track circuits were used on the long track sections in the tunnels. 37. Up until that point, Track Circuits always had a big edge when it came to reliability. 38. Occasionally, sleepers are made with conduits for track circuit wiring, or extra fixtures for guard rails. 39. Football might have been his dream, but competing on the international track circuit meant financial security. 40. Axle counters are also useful on long sections where several intermediate track circuits may be saved.
