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Carrigeways |
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Dual carriageway route |
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Single carriageway
route |
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Dual carriageway
route with no fixed central reservation
carriageways are undivided and lane directions can be altered to
cater for traffic flows -
link to photo of road example (A38(M)) |
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Road Classifications |
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Motorway |
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Primary Route |
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A-road |
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B-road |
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Unclassified (un-numbered)
road |
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Road under construction |
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Junction
Types |
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Roundabout interchange -
grade separated, roundabout over road |
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Roundabout interchange -
grade separated, roundabout under road |
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Roundabout interchange -
at-grade (road is on same level as roundabout) |
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Diamond interchange |
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Half diamond interchange |
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Dumbell interchange |
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Trumpet interchange |
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Fork interchange |
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Crossroads -
at-grade (road is on same level as roundabout) |
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Staggered Crossroads -
at-grade |
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T-Junction -
at-grade |
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Parclo (Partial
cloverleaf)
This parclo has single carriageway slip roads |
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Other Symbols |
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Bridge
Only major or significant bridges are shown. Names of
bridges or rivers shown like
this. |
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Service area
- with
name shown like this |
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Truck Stop
-
with name shown like this |
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Hotel -
with
name shown like this |
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Toll Plaza |
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Tunnel
Names of tunnels are shown
like
this. |
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Partial
Tunnel
One carriageway is
tunnelled, the other is not (for example, Dartford Crossing). |
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10
11
12
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Junction Number
- Primary Route, Motorway, Limited Access junction |
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Park and Ride facility with connecting bus service. |
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Park and Ride facility with adjacent railway station. |
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Park and Ride facility with adjacent tram
/ light rail transit station. |
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Park and Ride facility with adjacent
London Underground station. |
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Park and Ride facility with adjacent Tyne
and Wear Metro station. |
