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A global multi-hazard risk analysis of road and railway infrastructure assets

Abstract:
Transport infrastructure is exposed to natural hazards all around the world. Here we present the first global estimates of multi-hazard exposure and risk to road and rail infrastructure. Results reveal that ~27% of all global road and railway assets are exposed to at least one hazard and ~7.5% of all assets are exposed to a 1/100 year flood event. Global Expected Annual Damages (EAD) due to direct damage to road and railway assets range from 3.1 to 22 billion US dollars, of which ~73% is caused by surface and river flooding. Global EAD are small relative to global GDP (~0.02%). However, in some countries EAD reach 0.5 to 1% of GDP annually, which is the same order of magnitude as national transport infrastructure budgets. A cost-benefit analysis suggests that increasing flood protection would have positive returns on ~60% of roads exposed to a 1/100 year flood event.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1038/s41467-019-10442-3

Authors

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Role:
Author
ORCID:
0000-0002-4953-4527
More by this author
Role:
Author
ORCID:
0000-0003-3101-1004


Publisher:
Nature Research
Journal:
Nature Communications More from this journal
Volume:
10
Issue:
1
Article number:
2677
Publication date:
2019-06-25
Acceptance date:
2019-05-14
DOI:
EISSN:
2041-1723
Pmid:
31239442


Language:
English
Keywords:
Pubs id:
pubs:1024965
UUID:
uuid:b57644c9-535e-466d-bc13-0e459967c9fd
Local pid:
pubs:1024965
Source identifiers:
1024965
Deposit date:
2019-11-15
ARK identifier:

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