When it is anticipated that a work train may be where it cannot be reached for meeting or passing orders, it may be directed to report for orders at a given time and place, or an order may be given that it shall clear the track for a designated extra in the following form:
(d.) Work train 292 will keep clear of Extra 223, south, between Antwerp and Brussels after 2.10 P. M.
In this case, extra 223 must not pass either of the points named before 2.10 P. M., at which time the work train must be out of the way between those points.
When the movement of an extra train over the working limits cannot be anticipated by these or other orders to the work train, an order must be given to such extra, to protect itself against the work train, in the following form:
(e.) Extra 76 will protect itself against work train extra 95 between Lyons and Paris.
This may be added to the order to run extra.
A work train when met or overtaken by an extra must allow it to pass without unnecessary detention.
When the conditions are such that it may be considered desirable to require that work trains shall at all times protect themselves while on working limits, this may be done under the following arrangements. To example (b) add the following words:
(f.) protecting itself against all trains.
A train receiving this order must, whether standing or moving, protect itself within the working limits (and in both directions on single track) against all trains, in the manner provided in Rule 99.