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.
| Original language | English |
|---|---|
| Article number | 2677 |
| Pages (from-to) | 1-11 |
| Number of pages | 11 |
| Journal | Nature Communications |
| Volume | 10 |
| DOIs | |
| Publication status | Published - 25 Jun 2019 |
Fingerprint
Cite this
}
A global multi-hazard risk analysis of road and railway infrastructure assets. / Koks, E. E.; Rozenberg, J.; Zorn, C.; Tariverdi, M.; Vousdoukas, M.; Fraser, S. A.; Hall, J. W.; Hallegatte, S.
In: Nature Communications, Vol. 10, 2677, 25.06.2019, p. 1-11.Research output: Contribution to Journal › Article › Academic › peer-review
TY - JOUR
T1 - A global multi-hazard risk analysis of road and railway infrastructure assets
AU - Koks, E. E.
AU - Rozenberg, J.
AU - Zorn, C.
AU - Tariverdi, M.
AU - Vousdoukas, M.
AU - Fraser, S. A.
AU - Hall, J. W.
AU - Hallegatte, S.
PY - 2019/6/25
Y1 - 2019/6/25
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85068033406&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85068033406&partnerID=8YFLogxK
U2 - 10.1038/s41467-019-10442-3
DO - 10.1038/s41467-019-10442-3
M3 - Article
VL - 10
SP - 1
EP - 11
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
M1 - 2677
ER -