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

E. E. Koks; J. Rozenberg; C. Zorn; M. Tariverdi; M. Vousdoukas; S. A. Fraser; J. W. Hall; S. Hallegatte

doi:10.1038/s41467-019-10442-3

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

E. E. Koks^*, J. Rozenberg, C. Zorn, M. Tariverdi, M. Vousdoukas, S. A. Fraser, J. W. Hall, S. Hallegatte

^*Corresponding author for this work

Water and Climate Risk

Research output: Contribution to Journal › Article › Academic › peer-review

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	https://doi.org/10.1038/s41467-019-10442-3
Publication status	Published - 25 Jun 2019

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1038/s41467-019-10442-3

Cite this

@article{6149792a055c4820b6822cb6fb16274d,

title = "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.",

author = "Koks, {E. E.} and J. Rozenberg and C. Zorn and M. Tariverdi and M. Vousdoukas and Fraser, {S. A.} and Hall, {J. W.} and S. Hallegatte",

year = "2019",

month = jun,

day = "25",

doi = "10.1038/s41467-019-10442-3",

language = "English",

volume = "10",

pages = "1--11",

journal = "Nature Communications",

issn = "2041-1723",

publisher = "Nature Publishing Group",

}

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

AN - SCOPUS:85068033406

VL - 10

SP - 1

EP - 11

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 2677

ER -

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

Abstract

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this