| Year | 1997 |
| Date | 07-Nov |
| Volume | 179 |
| Issue | 4,054 |
| Page | 574 |
| Category | Railway |
| Part | 4 |
| Title | S.A.M.E.S. (Sale Area MES) Electric Signals: Safe, Automatic & Modern |
| Author | Tom Brown |
| Notes | Looks at the final details. The system can grow, material availability, making a lens, electrical continuity |