A4042 road
The
A4042 is a
trunk road that runs from
Abergavenny to
Newport in the
United Kingdom. It begins on junction of the
A40 and
A465 south of Abergavenny and then travels southwards towards
Little Mill north of
Pontypool. This section is a single carriageway and is notoriously winding and undulating. From Little Mill onwards the road becomes a
dual carriageway, passing Pontypool and
Cwmbran before crossing the city boundary into Newport. Here the road has a junction (25A) with the
M4 motorway and south from there loses its trunk status and becomes an urban road. The first section of which, called Heidenheim Drive,
[named after one of Newport's twin towns.] is an elevated roadway through the
Crindau district. It then becomes a surface street called Kingsway that passes through the city centre, and continues on as Usk Way until its junction with the
A48 Southern Distributor Road in the south of the city.
