Complex sentence: Ruth Kelly, Secretary of State for Transport stated in an interview that this would not necessarily replace motorway widening in all circumstances, but would be another option and that the government were not using it simply a cheaper method of widening roads.
Split into simpler sentences: Ruth Kelly, Secretary of State for Transport stated in an interview that this would not necessarily replace motorway widening in all circumstances, but would be another option. The government were not using it simply a cheaper method of widening roads.