|Distance:||0.3 miles (0.5 km)|
|Meets:||A3, B81, A17, A4|
|Route outline (key)|
The B80 follows Roseville Street in the east of St Helier. It is entirely one-way, but as with many nearby streets changes half way along. Traffic therefore approaches from either end, and has to turn into Hastings Road, the B81, in the middle to continue. This junction is a filter in turn type, where the pavement opposite the side road bulges to turn traffic, but no priority is indicated. Due to the nature of the one-way system, and the fact that the B81 is unsigned, it is often shown as a spur of the B80.
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