Complex sentence: There have been a few plans to build along the route of the M49, they have been, an industrial estate, A new stadium for Bristol Rovers and an international arena, to rival that of Cardiff's and the new stadium being constructed alongside Temple Meads.
Split into simpler sentences: There have been a few plans to build along the route of the M49. These have included an industrial estate, a new stadium for Bristol Rovers and an international arena, to rival that of Cardiff's and the new stadium being constructed alongside Temple Meads.