Complex sentence: Petropavlovsk-Kamchatsky and the settlements in the central part of the peninsula are connected with highway leading to Ust-Kamchatsk, covered with asphalt in its southern part and near habitations, and changing into a gravel road about halfway north.
Split into simpler sentences: Petropavlovsk-Kamchatsky and the settlements in the central part of the peninsula are connected by highway leading to Ust-Kamchatsk. The road is asphalt in its southern part and near habitations, but changes to gravel about halfway north.