Complex sentence: The line between Dunstable and Luton has never been legally decommissioned, the track has now been removed, to make way for the new Luton to Dunstable Busway, which will run as far as Dunstable Town and then divert via the old cement works.
Split into simpler sentences: The line between Dunstable and Luton has never been legally decommissioned. Buses run on this route as far as Dunstable Town and then divert via the old cement works.