Mombasa–Nairobi Standard Gauge Railway common standard allows for seamless integration between the railways of NCIP countries. In the 2000s, Kenya's colonial-era metre-gauge railways deteriorated from lack of maintenance. By 2016, passenger trains were taking an entire day to travel from Nairobi to Mombasa, compared to 12 hours during the early 1990s. Freight transported from the Port of Mombasa fell from 4.8 million tonnes per year in the 1980s to 1.5 million tonnes per year in 2012. In 2014, the Rift Valley Railways Consortium, the operator of railways in Kenya and Uganda, reported a loss of US$1.5 million. At the same time, the Chinese government
Mombasa Peninsula, the Indian Subcontinent and China. 16th-century Portuguese voyager Duarte Barbosa claimed, "[Mombasa] is a place of great traffic and has a good harbour in which there are always moored small craft of many kinds and also great ships, both of which are bound from Sofala and others which come from Cambay and Melinde and others which sail to the island of Zanzibar." Vasco da Gama was the first known European to visit Mombasa, receiving a chilly reception in 1498. Two years later, the town was sacked by the Portuguese. In 1502, the sultanate became independent from Kilwa Kisiwani and