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| These warning indicators beside the Up Coventry line at Long Lawford advise drivers of a reduction in permissible speed on the approach to Rugby. The lower board indicates an 'enhanced permissible speed' of 75 mph for tilting trains in tilting mode, while the middle board shows that a permissible speed of equal value applies to multiple unit trains. The upper board is an ordinary warning indicator, showing a lower limit of 60 mph for all other trains. (Photo taken 15 August 2009) |
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| A non-standard differential permanent speed restriction sign alongside the Down Main line at Princes Risborough. On the right, the lower board shows a maximum permissible speed of 65 mph for 'Sprinter' type trains, while the upper board indicates a lower limit of 40 mph for all other trains. On the left, the 15 mph board with the left-hand directional arrow applies to movements onto the Thame Branch Siding. (Photo taken 16 January 2008, by Jo Sharpe) |
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| A standard differential permanent speed restriction sign at the south end of North Queensferry station. In simplistic terms, this indicates a permissible speed of 50 mph for passenger trains and 20 mph for all other trains. (Photo taken 5 August 1994) |
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| A non-standard differential permanent speed restriction sign at Marks Tey. The train seen heading to Sudbury is formed of a diesel multiple unit, thus it may observe the higher speed of 30 mph. Other types of trains are restricted to a lower limit of 20 mph. (Photo taken 16 May 2006) |
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| Around Ashford International station, permissible speeds are presented in both imperial and metric units. The signs seen here are fixed to a signal structure at the west end of the station. Speed values displayed on a white background are in miles per hour (MPH), and those on a black background are in kilometres per hour (KMH). (Photo taken 17 May 2006) |
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| A permanent speed restriction sign on the Up Main line approaching Carstairs, on the West Coast Main Line. The upper board indicates a permissible speed of 100 mph for conventional trains, while the lower board shows an 'enhanced permissible speed' of 110 mph, applicable only to tilting trains in tilting mode. (Photo taken 21 April 2023, by Carole Markou) |
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| New reflectorised 'cut-out' speed restriction signs were put on trial to allow their visibility to be compared with the standard circular speed signs. This example at St. Johns has yet to receive the attention of the graffiti vandals. (Photo taken 21 August 2009) |
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| A 'front of train accelerate' speed sign at the east end of Platform 7 at Bristol Temple Meads station. The lower board with the letter "A" informs drivers that they may accelerate to 25 mph as soon as the front of their train passes the sign. (Photo taken 29 June 2022) |
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