| Year | 2005 |
| Month | September |
| Volume | 27 |
| Issue | 3 |
| Page | 66 |
| Author | Boulton |
| Subject | Signals |
| Key Word | Multiple sections Signal Box Location Power Supplies Bonding and Cables Mechanical Semaphore Signals Safety Warning Routes Operation Variations |
| Article Title | Two - Aspect Automatic Train Signalling and Detection (Part 2) |