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T.PD.M.V.2.3
(Al/2001)
3.4.3 Carriageway Widths in Rural Areas
3.4.3.1 Table 3.4.3.1 shows the carriageway widths for the various road types in rural areas.
Table 3.4.3.1
Minimum Carriageway Widths in Rural Areas
Road Type Single Carriageway
2 lane 4 lane
Trunk Roads —
Rural Roads 7.3 13.5
Feeder Roads 6
Dual Carriageway
2 lane 3 lane 4 lane
(in) (m) (m)
7.3 11 14.6
7 3
3.4.3.2 For Trunk Roads and Rural Roads lesser widths may be used if these can be justified on
economic or other grounds.
3.4.3.3 If foreseeable development will change the function of a road to that of a different type then
the standard for this latter type should be adopted at the initial design stage.
3.4.3.4 Additional parking strips will not normally be justified in rural areas, but if for any reason
they are to be provided similar standards to that for urban areas as mentioned in paragraph
3.4.2.6 should be used.
3.4.3.5 For the same reasons given in paragraph 3.4.2.7 in respect of urban areas, two way single
carriageways in rural areas must not be divided into three lanes, other than on steep
gradients, for the purpose of providing an additional climbing lane, and then only strictly in
accordance with section 3.3.8 of this chapter. Where a climbing lane is proposed, right
turning pockets with local widening must be provided, for both directions, if right turning
movements are to be permitted in to any premises fronting the road.