Guinness-certified as the world’s longest driverless metro: six lines, 176 kilometres, 85 stations, $22.9 billion. The 100-millionth passenger boarded nine months after launch; November 2025 alone carried 17.5 million.
Opened in phases from December 2024, all six lines were operational by September 2025. Monthly ridership climbed from 2.8 million at launch to 17.48 million by November 2025 — roughly 583,000 a day, closing on the Phase 1 design benchmark of 700,000 daily.
Line 1 (Blue) leads with 28.7% of riders; the KAFD interchange — a Zaha Hadid-designed station that passed 3 million passengers in its first two months — is the network’s busiest node at 48,200 daily boardings.
Riyadh was built for the automobile: the metro’s 99.7% on-time rate and driverless GoA4 operation are engineered to make public transport the default in a city that never had any. Designed full capacity is 3.6 million passengers a day.
The system anchors a wider shift — bus network, on-demand services, park-and-ride — and the airport’s Terminal 1 station already ranks third by boardings, feeding the aviation hub directly.
Saudi urban rail carried 32.3 million passengers in Q1 2025 alone, Riyadh leading; the Kingdom’s full rail network — including the Haramain high-speed line — moved over 35 million in the same quarter.
No metro in history has been asked to change a city’s habits this fast. Riyadh went from zero rail transit to 176 kilometres in a single programme, and the ridership curve — doubling every few months through the first year — suggests the demand was dammed, not absent. The test now is the summer, when the Season ends and only habit remains.
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