Complex sentence: The A40 has taken three courses from here over the last thirty years, the last change in 2000, when Westway lost its motorway status (A40 (M)) and became the A40.
Split into simpler sentences: The A40 has taken three courses from here over the last thirty years. The last change was in 2000, when Westway lost its motorway status (A40 (M)) and became the A40.