(i) Dimension of roundabout symbols
| Number of roads | Internal radius | External radius | Length of entry arm | Minimum length of route symbol from centre of roundabout |
| 1 entry + 3 exits | 7 | 12 | 22 | 24 |
| 1 entry + 4 exits | 8 | 13 | 30 | 30 |
(ii) When it is more economical on roundabout signs especially where there is a group comprising more than one destination and route number, destinations may be placed to one side of an oblique route symbol, but see especially C(iv)(g).
(iii) The minimum distance between the route entering a roundabout and destinations to left and right shall be 6 S/W on the left and 5 S/W on the right.
(iv) There shall be a minimum of 2 S/W between a destination and the nearest point on the perimeter of a roundabout symbol.
(i) Where border is of the same colour as the letters it shall be 1½ S/W.
(ii) Between panels divisions of letter colour shall be 1 S/W.
(iii) Blue borders on local advance direction signs shall be 4 S/W.
(iv) Between panels on blue bordered signs divisions shall be blue and 1½ S/W.
(v) Internal corners of panels shall be radiused 1 S/W. External corners of sign plates shall be radiused 2 S/W.
(vi) Within panels, the border shall be separated from the top and sides by 21 S/W and from the base by 11 S/W.
(vii) Figured mileages shall follow place names on the same line and shall be at a distance of 3 S/W from them.
(viii) Route numbers shall be placed below place names and aligned with the initial of the place name.
(ix) Groups of place names/route numbers within panels shall be separated vertically by 1 S/W.
(x) Arrows shall be of a size appropriate to the alphabet.
(xi) Arrows shall be on the left of forward and left-turn destinations and to the right of right-turn destinations. Arrows for other than right-angle turns shall be set at 45°.
(xii) Arrows shall be centred vertically on related destinations however numerous these may be.
(xiii) Forward pointing and oblique arrows shall be 3 S/W from side borders.
(xiv) Side pointing arrows shall be 1 S/W from borders.
(xv) Vertically pointing arrows if related to a single place name shall be reduced to 1½ S/W in length.
(xvi) Destinations or route numbers shall be 2½ S/W from arrows.
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