than one route, the foreman must make a new arrangement with
the RTC before authorizing the movement.
(c) Track limits shall be kept as short as practicable and be
expressed in whole miles or by other identifiable locations.
(d) The GBO must indicate the location of flags that cannot be
placed at the distance prescribed by Rule 842.
843. SLOW TRACK PROTECTION – RULE 43
(a) When slow track protec-
tion is required the request
must be in writing and when
practicable on the prescribed
form, and after GBO protec-
tion has been provided, the
speed restriction and limits
must be confirmed to the
foreman in writing who will
arrange to:
(i) place a yellow flag at least two miles in each direction from the
defect, to the right of the track as seen from an approaching move-
ment; and
(ii) place a green flag in each direction, immediately beyond the
defect, to the right of the track as seen from an approaching
movement.
(b) The GBO must indicate the location of flags that cannot be
placed at the distance prescribed by Rule 843.
(c) When the placement of flags as prescribed by Rule 843 is
delayed, the RTC must be advised and the following must be added
to the Form V: “Signals may not be in place.” The flags must be
placed as soon as possible and the GBO changed accordingly.
(d) When a Rule 43 restriction is located at a single mile point, one
green signal will be displayed to identify the restriction and may be
displayed to either side of the track.
(e) When a rail break has been detected by an engineering employee
and it is safe to operate over the break at a speed less than posted
speed, the RTC will provide GBO protection to affected movements
stating the authorized speed over the break and how such location
is marked in the field, by either a Rail Break Sign or foreman, at the
break. Flags required by Rule 843 will not be in place.
(f) The regular placement of flags as required by Rule 843 must be
utilized after twenty four (24) hours if the defect is continuing.
845. SIGNAL PLACEMENT MULTI-TRACK
Except on a subdivision desig-
nated in special instructions,
signals required by Rules 842
and 843, must be placed to
the outside of the outermost
track(s) and not between the
main tracks.
Maintenance flags - 11
MRH-Dec 2014
