Traffic in Taiwan is heavily concentrated: Taiwan Taoyuan International Airport (TPE) alone handles about 44.9 million passengers a year, roughly 100% of the 45 million across the 4 airports listed here. That pattern is typical of a country with one dominant hub carrier feeding a single gateway.
Between them these airports operate 6 runways serving 4 cities, all on a single national clock. Every airport below links to a live map of aircraft observed within available ADS-B coverage around the field.
The airports are spread across roughly 3 degrees of latitude and 1 degrees of longitude. The network is geographically compact enough that most domestic sectors remain comparatively short. Field elevations vary less dramatically than they do in the world's mountain-airport networks. The average across this selected set is 1.5 runways per airport.
Read airport by airport, the selected Taiwan network is not interchangeable: Taiwan Taoyuan International Airport (TPE) has 2 runways and about 44.9 million annual passengers, Taichung International Airport / Ching Chuang Kang Air Base (RMQ) has 1 runway and no comparable traffic figure, Kaohsiung International Airport (KHH) has 1 runway and no comparable traffic figure and Tainan International Airport / Tainan Air Base (TNN) has 2 runways and no comparable traffic figure. Those differences matter when comparing a live map. A larger passenger total indicates schedule scale, while runway count describes physical layout; neither number by itself proves how delayed, connected or operationally efficient an airport will be on a particular day.
With 4 gateways in this data cut, the Taiwan hierarchy is readable directly: TPE contributes 100% of the represented passenger total, RMQ contributes 0% of the represented passenger total, KHH contributes 0% of the represented passenger total and TNN contributes 0% of the represented passenger total. That makes TPE the first gateway here without reducing RMQ to a minor field, since its traffic is about 0% of TPE's.
The physical ranking differs from the traffic ranking: TPE has 2 listed runways, TNN has 2 listed runways, RMQ has 1 listed runway and KHH has 1 listed runway. RMQ is the highest of the group at 663 ft, against 31 ft at KHH. Those facts describe layout and setting, not a live capacity forecast; weather, active runway configuration and traffic flow still decide what a viewer sees on the map at a given hour.