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Section 8: Over-run Prevention and Mitigation

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Some new countdown markers installed on the Southern Zone in 2000 stated the distance to the relevant station or signal in red text [8.58 & 8.59], instead of having the usual red diagonal bars (see [8.16]).

[8.58] Countdown Markers ( (a) - Outer board; (b) - Intermediate board; (c) - Inner board ).
Area: Southern Zone   Usage: Low   Status: Uncertain
[8.59] Countdown Markers.
Area: Southern and Great Western Zones   Usage: Low   Status: Uncertain

Signal WM717 controls the exit from the Down Side Carriage Shed at London Euston and was commissioned during resignalling of the station in 2000. Shortly after being brought into use, a board was added near the signal, worded "obey WM717" with a left-hand arrow [8.60].

[8.60] "Obey WM717" Sign.
Area: London Euston   Usage: Low   Status: Uncertain

In September 2000, a signal distance information board was provided at Dunfermline Queen Margaret station (Scotland Zone), stating the distance to the next signal ahead [8.61]. A similar board was provided at Dunfermline Town station, referring to signal EO714.

[8.61] Signal Distance Information Board. Click Here for Photo
Area: Scotland Zone   Usage: Low   Status: Obsolescent

A signal distance information board was erected at Ashtead station, alongside the DOO mirror at the south end of the Down platform, bearing the rather wordy message "your next signal W477 is 420 metres ahead of this point" in blue text [8.62].

[8.62] Signal Distance Information Board.
Area: Ashtead   Usage: Low   Status: Historical

The first signal encountered after leaving Oxford station to the north was signal OX26, which had restricted sighting. In November 2000, a very large board worded "OX26 ahead" was attached to the overbridge on the approach to the signal [8.63]. At a later date, a similar board reading "OX76 ahead" was placed immediately to the left of the original board, OX76 being the corresponding signal on the Down Passenger Loop.

[8.63] Signal Reminder Board. Click Here for Photo
Area: Oxford   Usage: Low   Status: Current

Signs with a blue and white surround were fitted on both sides of signal gantries on the approach to London Waterloo, to clearly identify the Down Windsor Fast line [8.64].

[8.64] Line Reminder Sign with blue and white striped surround.
Area: London Waterloo   Usage: Low   Status: Historical

Despite the provision of mitigation measures (see [8.46 & 8.47]), a further SPAD incident occurred at signal T22 at Norwood Junction on 20 October 2000. Following this, the original countdown markers were replaced by new ones having blue and white edging and stating the signal number [8.65]. The original line reminder sign alongside the signal head (see [8.47]) was replaced by one with a white background and blue and white edging [8.66]. The countdown markers were removed in 2016.

[8.65] Countdown Markers with blue and white striped surrounds ( (a) - Outer board; (b) - Intermediate board; (c) - Inner board ).
Area: Norwood Junction   Usage: Low   Status: Historical
[8.66] Line Reminder Sign with blue and white striped surround.
Area: Norwood Junction   Usage: Low   Status: Uncertain

Following a trial in 1999, D.R.A. reminder signs were, from 2001, provided at a number of stations operated by South West Trains. These comprise small signs placed near the "car stop" markers, worded "D.R.A. reminder" and bearing a picture of a red signal [8.67]. This acts as a reminder to the driver to set the 'driver's reminder appliance' (D.R.A.) if the platform starting signal (where provided) is at 'danger' or if the previous signal was displaying 'caution' (where no platform starting signal is provided). Similar signs have subsequently been provided in some other areas.

[8.67] D.R.A. Reminder Sign. Click Here for Photo
Area: Various   Usage: High   Status: Current

Position light shunting signal E961 at Southampton Maritime Freightliner Terminal was a multi-SPAD signal. To assist drivers in locating the signal, double-sided signs reading "beware E961" were positioned adjacent to it on both sides of the line [8.68]. A similar pair of signs was installed adjacent to signal E940 at Millbrook Freightliner Terminal.

[8.68] "Beware" Sign (e.g. on left-hand side of track).
Area: Southampton / Millbrook   Usage: Low   Status: Uncertain

Some signal reminder boards installed on the East Anglia Zone from 2001 have included the words "falling gradient" or "steep falling gradient" on their supplementary signs to assist drivers who are braking to stop at the signals concerned [8.69].

[8.69] Signal Reminder Board on Falling Gradient.
Area: East Anglia Zone   Usage: Low   Status: Obsolescent

Signal W187 on the Down Slow line at Wimbledon is the first signal beyond the flyover that carries the Up Slow line over the Fast lines. Approaching from the north, the Down lines are separated by the Up Slow, but beyond the flyover they run adjacent to each other. On occasions, drivers running on the Down Slow had been misled into reading the Down Fast signal adjacent to W187. In May 2001, as a short term remedy, line reminder signs with a letter "S" [8.70] were erected on the approach to signal W187 and adjacent to the signal itself.

[8.70] Line Reminder Sign with blue and white striped surround.
Area: Wimbledon   Usage: Low   Status: Historical

In May 2001, two countdown markers were provided on the approach to signal T365 at Wivelsfield (Southern Zone), stating the distance to the signal and embellished with blue and white surrounds [8.71].

[8.71] Countdown Markers ( (a) - Outer board; (b) - Inner board ).
Area: Wivelsfield   Usage: Low   Status: Uncertain