Complex sentence: The level crossing-being on a major route between Grimsby town and Cleethorpes was the cause for many hold ups on Cleethorpe Road and in the mid- 1960s was subsequently removed in favour of a concrete-built road bridge.
Split into simpler sentences: The level crossing, being on a major route between Grimsby town and Cleethorpes, was the cause for many delays on Cleethorpe Road. In the mid- 1960s, it was subsequently removed in favour of a concrete-built road bridge.