On 30 September 2012 22:43, Peter Miller <peter.mil...@itoworld.com> wrote:
> > So what about slip roads on non-motorway dual-carriageways? Are these > 70mph or 60mph in your view? > > Thanks, > Peter > >From what I've read I think there's a problem with the term '* dual-carriageway*' being commonly used to describe all the core parts of a route rather than the road sections along a route that meet a particular legislative definition (hope that's makes sense?). The slip road may be a core part of a route that consists primarily of 'dual-carriageway', but when considering speed limits it is wrong to consider a slip lane as part of the dual-carriageway. My opinion is that a slip road is a separate road, a road that joins two other roads. Therefore to find it's speed limit you look at the road before you and the legislation. The definition for a dual-carriageway is clear (if I've got the legislation correct!) *“dual-carriageway road” means a road part of which consists of a central reservation to separate a carriageway to be used by vehicles proceeding in one direction from a carriageway to be used by vehicles proceeding in the opposite direction* A slip road is highly unlikely to meet the above definition, since normally traffic travels in only one direction and there is no central reservation. The legislation states *all* other National Speed Limit roads are single-carriageway with a speed limit of 60 mph for cars. This all assumes a lack of a 'system of street lighting' Jason
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