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4.6.9.11 Types 2 + 5 (Diagram No. 4.6.9*3)
The direct diverging lane layout is appropriate for exiting
flows around the limit of the single lane exit but where site
conditions do not favour a single lane. The standard layout
where two exit lanes are required, and where there is no lane
drop, is shown in the parallel diverging lane layout. The
parallel diverging lane layout is particularly preferred when
the diverge is situated on a right hand curve*
4.6.9.12 Types 4*6 (Diagram No. 4.6.9.4)
Where a lane is dropped at the intersection types 4 + 6 layouts
are appropriate. The direct diverging lane may be used in
favourable site conditions, whereas the parallel type layout is
more appropriate on right hand curves.
4.6.9*13 Types 7, 8 + 9 (Diagram No. 4.6.9.5)
Types 7 and 8 are appropriate along routes with lane drop/pick
up at interchanges. Type 9 may be used at the divergence of two
routes of equal importance and carrying equal volumes of
traffic.