NR SSIDIS172
Sequential Operation of Point Ends
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| Organization: | NR |
| Publication Date: | 23 January 2013 |
| Status: | active |
| Page Count: | 14 |
scope:
PURPOSE
This document has been produced to specify SSI data constructs which are necessary as part of the new, novel and low-cost approach to the implementation of signalling projects on secondary routes and data not covered by the traditional SSI data preparation standards.
In this case the paper has been prepared to deal with the special data requirements for controlling one point-end at a time within the geographic limits of a single signalling "island".
Document History
NR SSIDIS172
January 23, 2013
Sequential Operation of Point Ends
PURPOSE
This document has been produced to specify SSI data constructs which are necessary as part of the new, novel and low-cost approach to the implementation of signalling projects on secondary...