A once-in-one-hundred-year event? A survey assessing deviation between perceived and actual understanding of flood risk terminology

Lee, Katherine; Torell, Gregory L.; Newman, Soren

doi:10.1016/j.jenvman.2020.111400

Cited by 8 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Flood risk = f (H, E, V) = Hazard × Exposure × Vulnerability (1) Considering that the different risk evaluation indicators play different importance in flood risk results, we modified the conceptual model of flood risk assessment to Equation (2).…”

Section: Risk Assessment Modelmentioning

confidence: 99%

“…Flooding is one of the most devastating natural disasters that can cause tremendous loss of life and economic damages [1][2][3]. According to a preliminary investigation, floods resulted in approximately 7 million deaths and more than USD 700 billion losses worldwide from 1900 to 2016 [4].…”

Section: Introductionmentioning

confidence: 99%

“…To address the aforesaid issues, we investigated and compared the flood risk levels in two scenarios, ignoring and considering land subsidence, respectively, using the Beijing subway as an example. The objectives of this study are (1) to develop a flood risk indicator system for metropolitan subway systems, (2) to propose an accurate method for assessing flood risk in metropolitan subway systems, (3) to evaluate the impact of land subsidence on the flood risk levels, and (4) to analyze the spatial pattern of flood risk in the Beijing subway system and provide a scientific basis for flood prevention. This paper is organized as follows.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Flood Risk Assessment of Subway Systems in Metropolitan Areas under Land Subsidence Scenario: A Case Study of Beijing

Wang

Liu

et al. 2021

Remote Sensing

View full text Add to dashboard Cite

Flooding is one of the most destructive natural events that severely damage the ground and inundate underground infrastructure. Subway systems in metropolitan areas are susceptible to flooding, which may be exacerbated when land subsidence occurs. However, previous studies have focused on flood risk evaluation on regional/watershed-scales and land subsidence monitoring in plains, instead of on subway flood risk evaluation and how land subsidence aggravates the flood risk in subway systems. Using the proposed risk indicators and field survey data, we present a method assessing the flood risk of metropolitan subway systems under a subsidence condition based on the fuzzy analytic hierarchy process (FAHP) combined with a geographic information system (GIS). We use the regional risk level within the 500 m buffer zone of the subway line to depict the flood risk of the subway system. The proposed method was used to evaluate the flood risk of the Beijing subway system. The results show that the flood risks of the Beijing subway show a ring-like distribution pattern—risk levels decreasing from the central urban area to the suburbs. Very high and high risks are mainly located within third and fourth ring roads, accounting for 63.58% (29.40 km2) and 63.83% (81.19 km2) of the total area. Land subsidence exacerbated the Beijing subway system’s flood risk level—the moderate to very high risk increased by 46.88 km2 (16.33%), indicating that land subsidence is an essential factor affecting the flood risk level of subway systems. In addition to enhancing flood warnings, future subway flooding could be reduced by elevating the height of the stations’ exit (entrance) and installing water stop plates and watertight doors. This study is of great significance for flood warning and prevention in the Beijing subway system; it provides a theoretical basis for flood risk evaluation in other metropolitan areas.

show abstract

Section: Risk Assessment Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Flood Risk Assessment of Subway Systems in Metropolitan Areas under Land Subsidence Scenario: A Case Study of Beijing

Wang

Liu

et al. 2021

Remote Sensing

View full text Add to dashboard Cite

show abstract

“…Además los modelos permiten analizar los impactos de las inundaciones en las sociedades, considerando aspectos como la salud, la educación, las actividades productivas, la habitabilidad y la cooperación, entre otros. De esta misma forma se aborda la gestión del riesgo por inundación en otras partes del mundo, como es el caso de Estados Unidos, (Lee et al, 2021). Donde las inundaciones son los desastres naturales más frecuentes, que generan impactos socioeconómicos.…”

Section: Transferencia De Los Modelos a Otras áReas Donde Se Presenta...unclassified

“…Esto implica que entre más conocimiento se tenga de las inundaciones y los impactos que esta genera, se podrá realizar una mejor gestión del riesgo en los territorios. Lee et al, (Lee et al, 2021), mencionan que se han realizado varias encuestas sobre la percepción del riesgo (Ludy and Kondolf, 2012), para determinar si la educación o lo ingresos afectan la comprensión del riesgo de inundaciones, encontrando que el 70 % de los encuestados no entendía su riesgo de inundación. También mencionan que Henstra et al, (Henstra et al, 2019)encontraron que los mapas no comunican el riesgo de manera efectiva.…”

Section: Transferencia De Los Modelos a Otras áReas Donde Se Presenta...unclassified

“Gestión del riesgo por inundaciones. Un metamodelo para el desarrollo de artefactos participativos” modelos integrados de sistemas socio-ecológicos : caso de estudio en la ecorregión de La Mojana (Colombia)

Gonzalez¹

View full text Add to dashboard Cite

Los análisis de riesgo por inundación en Colombia, se han enfocado en la modelación física de la amenaza y en la valoración de la vulnerabilidad física y social. Pero no se han integrado estos dos análisis en la evaluación del riesgo. El trabajo presentado hace énfasis, en la inclusión de los elementos sociales y el conocimiento de las comunidades, como base para la generación de modelos de evaluación del riesgo. Específicamente, se propone un modelo para hacer modelos, en el marco de procesos de participación local. Para esto se utiliza la metodología GAIA. Los artefactos desarrollados son: MOJANA, MOJANACOOP y MOJANAREAL, los cuales reflejan en su diseño los principales componentes del metamodelo. Las variables y procesos a modelar se representan a través de las reglas, que permiten integrar el fenómeno de la inundación y las características del sistema social. Para el desarrollo de los modelos se utiliza el caso de estudio de la ecorregión de la Mojana y se pudo concluir que las variables más importantes para analizar la vulnerabilidad social son: la condición de habitabilidad, las actividades productivas, los procesos de cooperación y, el acceso a la salud y educación de las comunidades locales. Para el caso específico de la ecorregión de la Mojana, la vulnerabilidad social es media y esta se encuentra relacionada con las formas de adaptación a los procesos de inundación

show abstract

University student flood risk perceptions and flood probability knowledge in Greater Sydney

Lin,

Opdyke

2024

Nat Hazards

View full text Add to dashboard Cite

While flood risk perception has been studied extensively in general populations, there remains a dearth of focus on youth perspectives – a key demographic to mobilising knowledge to achieve disaster risk reduction targets. This study aimed to evaluate university students’ perceptions of flood risk and their understanding of common flood probabilities in the Greater Sydney region of Australia. We surveyed 262 university students to better understand how flood preparedness, knowledge, and experience predict flood risk perceptions. Using ordinal logistic regression, we identified that students with past flood experience and women were more likely to have higher flood risk perceptions. In contrast, students with higher flood preparedness were more likely to have lower flood risk perceptions. Age, degree level (e.g. bachelor’s, master’s), place of residence, and flood knowledge were inconclusive predictors of risk perception. We also assessed differences in how students rated the likelihood of three equivalent flood probabilities presented in different ways: (1) a 1-in-100 year flood; (2) a flood with a 1% of happening in a given year; and (3) a flood with a 55% chance in an 80-year lifetime. Using Friedman and Kruskal-Wallis tests, we compared differences within student responses and across different risk perception groups. We found that students perceived equivalent flood probabilities stated over longer periods of time to be more likely to occur. This study contributes to understanding student perceptions of flood risk, presenting recommendations on how governments and higher educational institutions can improve building students’ knowledge of flood hazards.

show abstract

A once-in-one-hundred-year event? A survey assessing deviation between perceived and actual understanding of flood risk terminology

Cited by 8 publications

References 9 publications

Flood Risk Assessment of Subway Systems in Metropolitan Areas under Land Subsidence Scenario: A Case Study of Beijing

Flood Risk Assessment of Subway Systems in Metropolitan Areas under Land Subsidence Scenario: A Case Study of Beijing

“Gestión del riesgo por inundaciones. Un metamodelo para el desarrollo de artefactos participativos” modelos integrados de sistemas socio-ecológicos : caso de estudio en la ecorregión de La Mojana (Colombia)

University student flood risk perceptions and flood probability knowledge in Greater Sydney

Contact Info

Product

Resources

About