What was the roman road between London and wales called?

The Watling Street went from Dover to Londinium and from there to Viriconium (Wroxeter in Shropshire) via Verulanum (St Albans) Veronis (High Cross in Leicestershire) and Lectocentum (Wall in Staffordshire). One section continued to Chester and another section went to Holyhead on the island od Anglesey. Other roads were built into north and central Wales. All these sections and roads were not considered part of the Watling St.

To go to south Wales you could live the Watling Street at St Albans and take the Akeman Street which went to Corinium Dubunium (Cirenchester in Gloucestershire). It connected the Watling Street with the Fosse Way. From Cirenchester you could take a road to Isca Augusta (or Isca Silurum) near Newport in south Wales. Isca was the headquarters of the Legio (legion) II Augusta.