Complex sentence: After construction of the connection to Voi, traffic between Arusha, Moshi and the coast was directed to the port of Mombasa and the eastern part of the Usambara Railway was reduced to a local service.
Split into simpler sentences: After construction of the connection to Voi traffic between Arusha, Moshi and the coast was directed to the port of Mombasa. So the eastern part of the Usambara Railway was reduced to a local service.