The words 'Keep clear' should continue to be used on the carriageway where a junction is liable to be blocked by traffic held up by a railway level crossing or at a junction ahead (paragraph 236).
The words 'Ambulances only' and 'School entrance' should continue to be authorised where necessary (paragraph 237).
Edge of carriageway markings should continue to be white. Broken white, and not broken yellow, lines should be used to divide clearways from their lay-bys (paragraph 238).
The use of coloured road surfaces particularly at junctions should be further investigated: also improved methods of producing coloured carriageway markings (paragraph 239).
All carriageway markings should have a skid-resistant surface. Stainless steel plates as carriageway markings should be replaced by white lines (paragraph 240).
There should be greater use of road markings (paragraph 241). 'Catseyes' are the most effective type of reflector and should be widely used but there is also scope for greater use of ballotini reflectorised lines. Both should be used for double white lines.
Where there is no street lighting during the whole or part of the night, use of both 'catseyes' and reflectorised lines should be considered for longitudinal markings on heavily trafficked roads and where fog is prevalent or conditions are dangerous.
On lightly trafficked roads and roads not subject to fog, plain lines and 'catseyes' may be sufficient depending on traffic conditions.
On roads lit throughout the night plain lines will normally be appropriate (paragraph 242).
'Catseyes' should be reserved for use in longitudinal markings and not be used in stop lines.
More experiments should be done with the use of alternate white and yellow 'catseyes' in warning lines (paragraph 243).
Restoration of road markings should take place more quickly after road repairs (paragraph 244).
The replacement of fixed time by vehicle actuated signals should continue until no fixed time signals remain (paragraph 245).
There should be wider use of selective control of complicated junctions by green arrows but multiple green arrows should not replace the full green signal to indicate that movement in all directions is possible.
There should be more advance signs and carriageway markings to help drivers to move early enough into the appropriate lane and particularly to avoid misuse of a filter lane (paragraph 246).
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