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T.P.D.M. V.2.3
(Al/2001)
3.11.12 Traffic Aids
3.11.12.1 Traffic signs on single track roads should be kept to a minimum. Where traffic signs or
other traffic aids are considered necessary, the land status should be checked to ensure they
will not be erected on private land.
3.11.12.2 Where a road is initially two lane for a short section prior to becoming a single track road,
traffic sign 604 (TC 304) 'Single track road with passing places' should be erected.
3.11.12.3 The speed limit will normally be 50 km/h, even when the road is designed to a lower speed.
A lower speed limit should only be introduced where the Police are able to adequately
enforce it, not just as a means to indicate to motorists that the road is designed to a low
speed.
3.11.12.4 The use of road humps should be considered at appropriate locations as a means of
controlling vehicle speeds. Further advice is given in Chapter 5 of this Volume.
3.11.12.5 Where there is no street lighting, or the lamps are more than 200 metres apart, and there is
a likelihood of illegal parking then traffic sign PA 6 (TC 286) may be erected. However
the use of this sign should be restricted to those locations where illegal parking is a
problem. The sign must not be used where there is a system of street lighting with the
lamps less than 200 metres apart.
3.11.12.6 Unless there is a need to control the type of vehicle using parking spaces these maybe
designated by the marking alone.
3.11.12.7 Passing bays should normally be signed by means of traffic sign 620 (TC 313).
3.11.12.8 Bends would not normally be signed though on very sharp or hairpin bends a chevron sign
414 (TC 210) or black and white markings on the outer kerb or barrier may be appropriate
particularly if the road is unlit.
3.11.12.9 Railings would not normally be appropriate on these roads other than where there is a steep
drop with insignificant level difference behind the footpath.
3.11.12.10Safety fencing would only normally be required on the outside of very sharp bends or on
structures where there is a steep drop. At other locations a concrete upstand would
probably suffice.
3.11.13 Use by Public Transport
3.11.13.1 These roads would not normally be considered suitable for use by buses but would
however be suitable for use by minibuses and taxis. Depending on the type of facility
which each road serves, they may be used by coaches. Consideration should be given to
providing suitable facilities for GMB's and taxis to turn round and wait close to villages
and other locations where the public would be most likely to require public transport.