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A lineside board bearing a numeral, sometimes with a route indicator.
Also known as: Permissible speed indicator, Speed board, Line speed sign, Number on a lineside post
A speed board gives the maximum permitted speed from that point, and where a junction diverges it carries an indicator saying which route the figure applies to — the two routes usually have different limits and the board must say which is which.
Indicates the maximum permitted speed for trains from that point onwards.
Contexts: Public information
Carries a route indicator at junctions, because diverging routes normally have different limits and the figure alone would be ambiguous.
Contexts: Public information
Is preceded by an advance warning board at braking distance, so a driver can slow before reaching the restriction rather than at it.
Contexts: Public information
A rectangular lineside board bearing a large numeral in black on a white ground, sometimes with a small arrow or route letter above.