Complex sentence: Kingswood is a town in South Gloucestershire, England; it is on the eastern outskirts of Bristol (see below), on the A420 road, as this main road leaves Bristol for Oxford.
Split into simpler sentences: Kingswood is a town in South Gloucestershire, England. It is on the eastern outskirts of the city of Bristol, on the A420 road, as this main road leaves Bristol for Oxford.