depending on which carriageway of the motorway it wishes to join. At the present time these two roundabouts are signposted separately, and some drivers have shown an understandable reluctance to pass the first roundabout when in fact they should proceed along the all-purpose road to the second one, of whose existence they may however be unaware. The result has been in some cases that they have found themselves on the wrong carriageway of the motorway. Since we understand that this type of junction is likely to be employed elsewhere we have designed a special sign which clearly shows both roundabouts. It is illustrated in figure 7 of Appendix IV. This sign represents the only exception to the rule we have enunciated earlier that on advance direction signs the placenames should precede the route-number; the rule has been broken in this case to separate more clearly the place-names in different word-groups.
Supplementary Direction Signs at the Junction itself
58. In our interim report we recommended a pointer-type sign for use on the all-purpose road at junctions with the motorway to supplement the motorway directions already given on the advance direction signs and to point the way to the motorway or the slip road leading to it. It incorporated white letters on a rectangular blue panel within a pointed white sign, and it has been represented to us that viewed from certain angles the white pointed area of the sign fades into the background . We think there is some substance in this objection, and we now recommend a revised design (figures 8 and 9 of Appendix IV) in which the white point is emphasised by being enclosed in a wide band of blue.
59. It will be seen that where the sign incorporates more than one place-name and the pointed area is therefore larger the distance between the white point and the route-number nevertheless remains constant, so that the route-number is at least partly inside the pointed area. We consider in fact that two is the ideal number of names to appear on this sign, although three could be tolerated. With four or more names on the sign, however, the pointed end would lose definition, and we therefore recommend that if more than three names are to be given two signs should be used. 60. The conventional black and white pointer signs should be used on allpurpose roads at junctions with the motorway to point to or along the allpurpose arms of the junction, and standard 'No Entry' signs should be erected to prevent traffic attempting to join the motorway by means of an exit slip road.
Signs Indicating Motorway Regulations
61. We recognise with some reluctance that in the early stages at least it will be necessary to give some positive guidance about the motorway Regulations at all accesses to the motorways and we propose two signs for the purpose. These are shown at figures 10 and 12. The first, dealing with the traffic excluded from the motorway, should be put up at the entry to the slip road leading to the motorway, and the second, dealing with the use of the motorway, should be placed on the slip road before the motorway is reached.
62. We debated whether, since the first of these signs will appear just at the point where the driver starts his manœuvre on to the motorway, some advance
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