Every City of 400,000+ Gets a Port and a JFK-Class Airport
Any city that reaches 400,000 citizens is entitled to, and must be given within 10 years, a connected port and an international airport built to JFK standard : multiple long runways, several terminals, customs and immigration, a bonded air-cargo terminal and an on-site HSR or metro station. Cities on the coast get a seaport. Cities on a lake or river get a lake or river port. Landlocked cities get a rail-linked dry port , a customs-cleared container terminal connected by freight rail to a seaport.
Gateway Register: Every City with 400,000+ Citizens
Each city is listed with its port type and airport tier. Search by city, country or port.
City Country Population HSR Port Airport (JFK-class)
Realism check: New York JFK handles roughly 60 million passengers a year, far more than a city of 400,000 can fill. The gateway rule therefore fixes the standard (runway length, customs, cargo, rail link) for every city and scales design capacity by city size across three tiers. Cities listed without a population figure in the union dataset are not yet in this register, and any city that crosses 400,000 is added automatically. Kigali's population is an estimate.