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A4232

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A4232
Cameraicon.png View gallery (39)
From:Cardiff West (ST090794)
To:Cardiff Gate (ST217831)
Via:Cardiff Bay
Length:17.8 miles (28.6 km)
Meets: M4, A48, A4050, A4055, A4234, A4161, A48, M4
Highway Authorities

South Wales Trunk Road Agent • Cardiff Council • Vale of Glamorgan Council

Traditional Counties

Glamorgan • Monmouthshire

Route outline (key)
A4232 Cardiff West - Culverhouse Cross
A4232 Culverhouse Cross - Cardiff Bay
A4232 Cardiff Docks - Pengam
A4232 Pengam - Rumney
(A4161) Rumney - Llanedeyrn
(A48) Llanedeyrn
A4232 Llanedeyrn - Cardiff Gate

Route

The A4232 forms three quarters of an outer ring road of Cardiff, with the M4 completing the circle to the north, thus connecting Cardiff Bay and the docks with the motorway in both directions. At least that's the theory. Whereas the western half of the A4232 seems to be complete, the eastern half of the road consists of two short unconnected link roads, with no obvious way of getting from there to the western half of the road.

Cardiff West - Cardiff Bay

The western end of the A4232 is at M4 J33, which also serves Cardiff West services but no other roads. Initially we head south, as a grade-separated trunk dual-carriageway through open countryside. Southbound there's an unexpected LILO junction which only serves the Museum of Welsh Life at St Fagans; there's no corresponding northbound link so traffic is signed to rejoin the southbound A4232 and then U-turn.

Taff Viaduct

Over a mile later, having crossed the main railway line and the River Ely, we reach the first actual GSJ on our route at Culverhouse Cross, where we meet the A48(for west Cardiff) and A4050 (for Barry and Cardiff Airport). Although there's little on the ground to indicate our change of status we lose primary status here. The road then heads east, skirting the edge of the urban area, to recross the River Ely and meet the B4267. Heading south now, we cross the river twice more in quick succession, going over the A4160 with no junction, and then bend to the left to meet the A4055. We then cross a long bridge over the River Taff on the northern edge of Cardiff Bay. There's a turn off for Butetown and the Bay area and then we drop down into the Queen's Gate Tunnel. We soon emerge and reach a roundabout where the A4232 disappears. It was obviously meant to continue ahead but there's no road there at present.

Cardiff Bay - Cardiff Gate

Plans for the unbuilt section of the A4232

To continue following the A4232 we have to bear left onto the A4234 past the old Bute East Dock and turn off at the first junction. We now follow an unclassified road east past Cardiff's "Magic Roundabout" (an ordinary roundabout with road signs in the centre forming sculptures). We turn right here, following signs for the M4 and follow a zigzag route through an industrial estate. One of the roundabouts is unusually large and connects to nothing, suggesting that the A4232 is meant to pass this way.

We continue through an industrial area before bearing left to pass a Tesco to reach another roundabout. Perhaps unexpectedly, the A4232 reappears here (there are no other classified roads), with splayed carriageways on that road suggesting a possible future GSJ. We cross the River Rhymney twice in quick succession, with the main railway line in between, meaning that the majority of this section is elevated. It's also S2, meaning that dualling could be expensive.

As soon as the A4232 has appeared it disappears again. We go over a roundabout on the A4161 and then that road comes up to merge with us and we take its number. We're now dual again. There are a couple of bends and we come to a halt on the A48. There's a multiplex east along that road through the bi-central suburb of Llandeyrn and the A4232 reappears at the second GSJ. We're now dual once more but there is an at-grade roundabout we have to stop for, serving a retail park. The road continues north to end at the next roundabout, M4 J30. It's a similar junction to the western end: just the motorway, the A4232 and a service area, Cardiff Gate services, although this time there is an unclassified road heading north to nowhere in particular.



A4232
JunctionsCardiff West Interchange • Culverhouse Cross roundabout • Pentwyn Interchange
ServicesCardiff Gate services • Cardiff West services
CrossingsQueens Gate Tunnel
Related Pictures
View gallery (39)
A4232 Extension 03A4232 Extension 07A4232 Extension 15Cardiff Bay and Flyover - Geograph - 1446226.jpgM4 J33 early design.png
Other nearby roads
CardiffA4050 • A4053 (Cardiff) • A4054 • A4055 • A4056 • A4119 • A4160 • A4161 • A4234 • A469 • A470 • A48 • A48(M) • A48(M) (Llantrisant Radial) • B4239 • B4258 (Llandaff) • B4258 (Roath - Gabalfa) • B4259 • B4260 (Penarth) • B4261 • B4261 (Llandaff - Llantrisant) • B4262 • B4267 • B4288 (Monmouthshire) • B4487 • B4488 • B4562 • E105 (London - Fishguard) • E30 • Hook Road • M4 • NCN8 • T10 (Britain) • T75 (Britain) • Western Tangential
A4200-A4299
A4200 • A4201 • A4202 • A4203 • A4204 • A4205 • A4206 • A4207 • A4208 • A4209 • A4210 • A4211 • A4212 • A4213 • A4214 • A4215 • A4216 • A4217 • A4218 • A4219
A4220 • A4221 • A4222 • A4223 • A4224 • A4225 • A4226 • A4227 • A4228 • A4229 • A4230 • A4231 • A4232 • A4233 • A4234 • A4235 • A4236 • A4237 • A4238 • A4239
A4240 • A4241 • A4242 • A4243 • A4244 • A4245 • A4246 • A4247 • A4248 • A4249 • A4250 • A4251 • A4252 • A4253 • A4254 • A4255 • A4256 • A4257 • A4258 • A4259
A4260 • A4261 • A4262 • A4263 • A4264 • A4265 • A4266 • A4267 • A4268 • A4269 • A4270 • A4271 • A4272 • A4273 • A4274 • A4275 • A4276 • A4277 • A4278 • A4279
A4280 • A4281 • A4282 • A4283 • A4284 • A4285 • A4286 • A4287 • A4288 • A4289 • A4290 • A4291 • A4292 • A4293 • A4294 • A4295 • A4296 • A4297 • A4298 • A4299