Mai 2026
Asian Transport Observatory (43 pages).
As incomes rise, the population demands better roads, faster trains, more reliable ports, and modern airports. The question is not whether Asia needs more transport infrastructure. The question is: how much, and at what cost?
This report provides answers. The Asian Transport Observatory (ATO), a joint initiative of the Asian Development Bank (ADB) and the Asian Infrastructure Investment Bank (AIIB), has assembled the most detailed forward-looking estimate of Asia-Pacific transport investment needs ever produced.
The Core Finding - Annual investment needs across all transport modes will climb from roughly US$800 billion per year during 2000–2025 to approximately US$2.6 trillion per year between 2025 and 2035. That is equivalent to 2.3% of LMIC GDP per year. This projection is conservative. It reflects observed trends and current pipelines, not aspirational targets. Actual needs, accounting for the full cost of the energy transition, the climate adaptation backlog, and the SDG access deficit, are likely to be considerably higher. Road investments dominate and will absorb 44% of all transport investment from 2025 to 2035, or about 1% of GDP annually. Asia's LMICs could add 3 million km of roads in the next decade, yet per capita road access will remain below a quarter of OECD levels. Nearly 396 million people still lack an allweather road. Motorization outpaces infrastructure. Vehicle numbers may grow by 3% per year, while road networks expand by only 1.4%. This widening gap will worsen congestion, road damage, and accidents.
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