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The Recovery Followed the Road Network
Across more than 1,700 Japanese municipalities, restored expressways were tied to broader post-disaster recovery than high-speed rail.
Summary
Across more than 1,700 Japanese municipalities, restored expressways were tied to broader post-disaster recovery than high-speed rail.
Researchers analyzed municipal economic and demographic data from 2006 through 2020 around the Great East Japan Earthquake. Their counterfactual model associated restored expressway connectivity with wider gains in manufacturing, population inflow and new-business formation than restored high-speed rail, and estimated that withholding expressway restoration would have added ¥567.3 billion in annual losses by 2020. The study supports network-wide restoration planning, but its historical associations and model do not guarantee the same effect after every disaster.
Why it matters
Across more than 1,700 Japanese municipalities, restored expressways were tied to broader post-disaster recovery than high-speed rail.
Limits and context
- The study supports network-wide restoration planning, but its historical associations and model do not guarantee the same effect after every disaster.
Key claims
Across more than 1,700 Japanese municipalities, restored expressways were tied to broader post-disaster recovery than high-speed rail.
Qualification: The study supports network-wide restoration planning, but its historical associations and model do not guarantee the same effect after every disaster.
Evidence: source-2026-07-29-002
Sources
- Sungkyunkwan University via Newswise: Expressway networks and regional post-disaster recoverySungkyunkwan University via Newswise · official announcement
Corrections
No corrections have been recorded for this story.