Complex sentence: In the late 1980s and early 1990s, when large housing developments spread across several towns, Pewsham was the name given to Chippenham's new residential district in the southeast of the town; the diverted A4 which formed the district's perimeter road was named Pewsham Way.
Split into simpler sentences: In the late 1980s and early 1990s, when large housing developments spread across several towns, Pewsham was the name given to Chippenham's new residential district in the southeast of the town. The diverted A4 which formed the district's perimeter road was named Pewsham Way.