17-01-2011, 03:43 PM
I have a couple of comments on your answer:
You seem to have neglected the call-on route from signal 107.
I don't think the 'branch' routes from signal 111 are represented correctly. For instance, when 111 is at red, 107 would be at yellow and there would be no need for BG or BH to be occupied, as you have shown. BG or BH occ is only required for the approach release of 111 to show Y+pos1 or G+pos1 so should be indicated as a condition for these, as you have with "BD occ" on 107.
I would suggest that this condition is also relevant when the warning route has been set from 107.
You seem to have neglected the call-on route from signal 107.
I don't think the 'branch' routes from signal 111 are represented correctly. For instance, when 111 is at red, 107 would be at yellow and there would be no need for BG or BH to be occupied, as you have shown. BG or BH occ is only required for the approach release of 111 to show Y+pos1 or G+pos1 so should be indicated as a condition for these, as you have with "BD occ" on 107.
I would suggest that this condition is also relevant when the warning route has been set from 107.