Complex sentence: At the same time, he rationalised bus routes to ensure that they complemented and acted as feeder services for the company's railway lines; tripling the number of LGOC operated routes during 1912 and extending the area covered to five times its previous size.
Split into simpler sentences: At the same time, he rationalised bus routes to ensure that they complemented and acted as feeder services for the company's railway lines. The number of LGOC operated routes was tripled during 1912 and the area covered was extended to five times its previous size.