Complex sentence: He also worked towards improving the road system with four classes of roads and oversaw the building of bridges at key points such as at Fraserpert, Maddur, Hoskote, Shimoga and Hiriyur.
Split into simpler sentences: He also worked towards improving the road system with four classes of roads. Building bridges at key points such as at Fraserpert, Maddur, Hoskote, Shimoga and Hiriyur.