SSP019 03-79
Approach Locking
Synopsis
More categories for comprehensive; release times dependent on signal spacing.
Read full standard
Registered
Withdrawn
Other
- Issued:
- 01/03/1979
- Published:
- 31/10/2016
- In Force:
- 01/03/1979
- Withdrawn:
- 01/06/1988
Details
| Consultation Status | Closed |
| Vehicle Assessment | No |
| Supersedes | SSP019 01-63 |
| Superseded By | SSP019 06-88 |
| Lead Committee | Control Command and Signalling - CCS |