 The £ 8 @.@ 5 million Central Link ( Welsh : Ffordd Gyswllt Canolog ) between the Queen 's Gate Roundabout ( 51 @.@ 468399 ° N 3 @.@ 157366 ° W ﻿ / 51 @.@ 468399 ; -3.157366 ﻿ ( Queen 's Gate Roundabout ) ) and the junction on Adam Street ( 51 @.@ 479557 ° N 3 @.@ 167631 ° W ﻿ / 51 @.@ 479557 ; -3.167631 ﻿ ( Adam Street Junction ) ) on the A4160 was opened on 16 February 1989 . When it was first opened it only linked Cardiff city centre with Cardiff Bay . It was not until the Butetown Link was opened on 27 March 1995 that this road started to be used as a link to the motorway network , Penarth and the Vale of Glamorgan . It will not be until the Eastern Bay Link is built , when traffic from the city centre will use it to travel east , that it will be fully used . The length of the A4234 is just 1 @.@ 45 km ( 0 @.@ 90 mi ) and is entirely a two lane dual carriageway with clearway restrictions . 
 The £ 8 @.@ 5 million Central Link ( Welsh : Ffordd Gyswllt Canolog ) between the Queen <a href='null_genetive' title='1'><mark>'s</mark></a>Gate Roundabout ( 51 @.@ 468399 ° N 3 @.@ 157366 ° W ﻿ / 51 @.@ 468399 ; -3.157366 ﻿ ( Queen <a href='null_genetive' title='2'><mark>'s</mark></a>Gate Roundabout ) ) and the junction on Adam Street ( 51 @.@ 479557 ° N 3 @.@ 167631 ° W ﻿ / 51 @.@ 479557 ; -3.167631 ﻿ ( Adam Street Junction ) ) on the A4160 was opened on 16 February 1989 . When it was first opened it only linked Cardiff city centre with Cardiff Bay . It <a href='negative_concord' title='3'><mark>was</mark></a> <a href='negative_concord' title='4'><mark>not</mark></a>until the Butetown Link was opened on 27 March 1995 that this road started to be used as a link to the motorway network , Penarth and the Vale of Glamorgan . It will <a href='negative_concord' title='5'><mark>not</mark></a><a href='negative_concord' title='6'><mark>be</mark></a> until the Eastern Bay Link is built , when traffic from the city centre will use it to travel east , that it will be fully used . The length of the A4234 <a href='drop_aux' title='7'><mark>is</mark></a>just 1 @.@ 45 km ( 0 @.@ 90 mi ) and <a href='drop_aux' title='8'><mark>is</mark></a>entirely a two lane dual carriageway with clearway restrictions . 
The £ 8 @.@ 5 million Central Link ( Welsh : Ffordd Gyswllt Canolog ) between da Queen  Gate Roundabout ( 51 @.@ 468399 ° N 3 @.@ 157366 ° W ﻿ / 51 @.@ 468399 ; -3.157366 ﻿ ( Queen  Gate Roundabout ) ) and tdajunction on Adam Street ( 51 @.@ 479557 ° N 3 @.@ 167631 ° W ﻿ / 51 @.@ 479557 ; -3.167631 ﻿ ( Adam Street Junction ) ) on the A4160 was opened on 16 February 1989 . When it was first opened it only linked Cardiff city centre witt Cardiff Bay . It ain't untill the Butetown Link was opened on 27 March 1995 that dis road started to b used as a link to the motorway network , Penarth and the Vale of Glamorgan . It gon ain't until thdaastern Bay Link is built , when traffic from thedaty centre wgonuse it to travel east , dat it will be fully used . The length of the A4234 just 1 @.@ 45 km ( 0 @.@ 90 mi ) and entirely a 2 lane dual carriageway w/ clearway restrictions .