Page:Report of the Departmental Committee on Traffic Signs (1946).djvu/40

 Detailed review of mandatory signs

89. Diagrams 62 to 73 in Appendix VI illustrate the mandatory signs at present authorised, and new or amended mandatory signs which we recommend for adoption. These signs are reviewed in detail in paragraphs go to gg.

Turn Left, One Way Only

90. We recommend the sign “Turn Left, One Way Only” shown in diagram 62. It differs from the existing sign only in that for the reasons given in paragraph 18, the lettering is black on white instead of white on blue. The sign may be erected only where an appropriate statutory Order or Regulation is in force. A similar sign “Turn Right, One Way Only,” with the arrow pointing to the right, is also recommended.

Turn Left

91. Diagram 63. shows a “Turn Left” sign recommended for use where a statutory Order or Regulation requires traffic to turn left at_a junction, although the road entered is not subject to a one-way traffic Order. The over-all dimensions shown differ slightly from those of the existing sign, and, as recommended in paragraph 18, the lettering is black on white instead of white on blue.

Keep Left, One Way Only

92. Diagram 64 shows a sign “Keep Left, One Way Only” recommended for use in appropriate cases where one-way traffic working is imposed by a statutory Order or Regulation. Agajn the lettering is black on white instead of white on blue as in the existing sign.

Keep Left, Dual Carriageway

93. Diagram 65 shows an existing sign worded “Dual Carriageway, Keep Left of Islands,” intended for use at the ends of sections of dual carriageway. It may be used only where the direction of travel on the separate carriageways is governed by statutory Order or Regulation. We recommend that it be superseded by the simpler sign “Keep Left, Dual Carriageway” shown in diagram 66.

Turn Left, Dual Carriageway

94. Diagram 68 shows an amended sign which we recommend should replace the existing sign shown in diagram 67. It should be used only at junctions with a dual carriageway system where a left turn is obligatory on all traffic entering from the side road.

Keep Left

95. We recommend the “Keep Left” sign shown in diagram 69. It differs from the signs discussed in the preceding paragraphs in that it may be erected on island refuges and other obstructions in the carriageway at the discretion of the highway authority without the backing of a statutory Order or Regulation. We understand that in the past there has been some indecision whether the “Keep Left” sign is, in the words of Section 49 of the Road Traffic Act, 1930, “a sign for regulating the movement of traffic or indicating the route to be followed by traffic,” and consequently whether or not failure to conform to the indication given by an authorised “Keep Left” sign constitutes an offence under that Section. We desire to record our view, which is