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Section 8: Over-run Prevention and Mitigation

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A large signal reminder board with blue and white surrounds [8.72] was installed on the approach to Up Slow signal WM312 at Camden Junction (Midlands Zone) in 2001.

[8.72] Signal Reminder Board.
Area: Camden Junction   Usage: Low   Status: Uncertain

An alternative form of signal reminder board on the Great Western Zone comprises an inverted triangle bearing a small exclamation mark with the associated lettering underneath [8.73].

[8.73] Signal Reminder Board (e.g. refers to signal number W305).
Area: Great Western Zone   Usage: Low   Status: Obsolescent

The countdown markers installed on the approach to signal VC636 at Balham (Southern Region) in 2001 stated the signal number at the top of each board [8.74].

[8.74] Countdown Markers ( (a) - Outer board; (b) - Intermediate board; (c) - Inner board ).
Area: Balham   Usage: Low   Status: Historical

Further countdown markers installed on the Southern Region in 2002 stated the distance to the signal or station concerned [8.75 & 8.76].

[8.75] Countdown Markers ( (a) - Outer board; (b) - Intermediate board; (c) - Inner board ).
Area: Southern Region   Usage: Low   Status: Uncertain
[8.76] Countdown Markers ( (a) - Outer board; (b) - Intermediate board; (c) - Inner board ).
Area: Southern Region   Usage: Low   Status: Uncertain

Signal distance information boards on the Great Western and Midlands Zones were provided with blue and white surrounds [8.77]. On the Great Western Main Line, these boards were installed in the manner of countdown markers at distances of 300 yards, 200 yards and 100 yards to the signal concerned.

[8.77] Signal Distance Information Board.
Area: Great Western and Midlands Zones   Usage: Medium   Status: Uncertain

A report into Railtrack's management of multi-SPAD signals was published by the Health & Safety Executive in 2002. The report made comment on the disparate practices adopted by the various Railtrack Zones regarding the provision and format of signal reminder boards and stated that boards with a white background and red border are more visually arresting than those with a yellow background, as well as being apparently less affected by dirt. Late in 2002, most of the signal reminder boards installed on the Scotland Zone during the preceding three years, which had yellow backgrounds (see [8.48 & 8.49]), were replaced by boards with a white background and red border [8.78 & 8.79].

[8.78] Signal Reminder Board.
Area: Scotland Zone   Usage: Low   Status: Obsolescent
[8.79] Signal Reminder Board. Click Here for Photo
Area: Scotland Zone   Usage: Low   Status: Obsolescent

In 2003, a standard form of signal reminder board was introduced, with a white background and red border. The supplementary sign, which also has a red border, states the distance to the signal ahead as well as its number [8.80].

[8.80] Signal Reminder Board.
Area: All Areas   Usage: Medium   Status: Current

Since 2003, it has been permissible to install up to a maximum of six countdown markers on the approach to a single feature. The red diagonal bars are grouped in sets of no more than three. It also became a standard requirement for each countdown marker to include the identity of the signal or other feature it applies to [8.81].

[8.81] Countdown Markers.
Area: All Areas   Usage: Medium   Status: Current

The standard form of line reminder board, introduced in 2003, comprises a white rectangle with a black border and black characters [8.82].

[8.82] Line Reminder Board (e.g. "DA" = Down Ayr line). Click Here for Photo
Area: All Areas   Usage: Medium   Status: Current

At Ipswich, a signal reminder board with the words "check CO799" [8.83] was provided at the exit from the Carriage Sidings, on the approach to shunting signal number CO799. On the approach to London Liverpool Street, one reminder board on the Up Main line applies to the signals on either leg of the divergence ahead (L58 to the left and L56 to the right) [8.84].

[8.83] Signal Reminder Board (e.g. refers to signal number CO799).
Area: Anglia Region   Usage: Low   Status: Current
[8.84] Signal Reminder Board applicable to two signals ahead.
Area: London Liverpool Street   Usage: Low   Status: Uncertain