| Signalling System of Indian Railways (during 1999-2000) | ||
| Installation | As on 31.03.1999 | As on 31.03.2000 |
| Tokenless Block Working (No. of Block Sections) | ||
| Automatic Block Signaling (Track Kms.) | ||
| Multiple Aspect Colour Light Signalling (No. of Stations) | ||
| Panel Interlocking | ||
| Solid State Interlocking | ||
| Route Relay Interlocking | ||
| Track-Circuiting: | ||
| (a) Fouling Mark to Fouling Mark on Run through Lines | ||
| (b) Fouling Mark to Block Section Limit (Straight) | ||
| Auxiliary Warning System (Track Kms.) | ||
| Last Vehicle Check by Axle Counter (No. of Block Sections) | ||
| Second Distant Signal | ||
