Original sentence: The idea of the M54 was originally presented due to the high volumes of traffic on two smaller, parallel routes; the A5, the Roman Watling Street, which connected Rochester, Kent with Wroxeter, Shropshire, and the London to Holyhead road (now parts of A5, A45, A41 and A464), which was largely constructed by civil engineer Thomas Telford in the early 19th century.With the proposal for a new town in the Telford area, then named Dawley New Town, the M54 was becoming more likely to be built; the government also wanted to increase transport provision to the rest of Shropshire, and provide an overspill housing area for the West Midlands conurbation
Edited sentence: The idea of the M54 was originally presented due to the high volumes of traffic on the A5,  London to Holyhead road which was largely constructed by civil engineer Thomas Telford in the early 19th following the route of the the Roman Watling Street, which connected Rochester, Kent with Wroxeter, Shropshire.With the proposal for a new town in the Telford area, to provide an overspill housing area for the West Midlands conurbation, then named Dawley New Town, the M54 was becoming more likely to be built; the government also wanted to increase transport provision to the rest of Shropshire