Potential Impacts of Climate Change on Flood-Induced Travel Disruptions: A Case Study of Portland, Oregon, USA

Chang, Heejun; Lafrenz, Martin; Jung, Il‐Won; Figliozzi, Miguel; Platman, Deena; Pederson, Cindy

doi:10.1080/00045608.2010.497110

Cited by 112 publications

(67 citation statements)

References 37 publications

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“…A representative methodology is Road Inundation Warning System (RIWS) which combines a rainfall-runoff model with a road inundation susceptibility analysis (Versini et al 2010b). Chang et al (2010) integrated a hydrologic model (PRMS), a 1D hydraulic model (HEC-RAS) and a travel forecast model into an assessment framework of urban flooding and transportation systems. Moreover, a LRSRM (Local Regional Scale Risk Model) was designed to identify the interruption of a road network due to a hazardous event from a multi-scale perspective by using the biclustering technique (Freiria et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Evaluating the impact and risk of pluvial flash flood on intra-urban road network: A case study in the city center of Shanghai, China

Yin

et al. 2016

Journal of Hydrology

323

150

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Urban pluvial flood are attracting growing public concern due to rising intense precipitation and increasing consequences. Accurate risk assessment is critical to an efficient urban pluvial flood management, particularly in transportation sector. This paper describes an integrated methodology, which initially makes use of high resolution 2D inundation modeling and flood depth-dependent measure to evaluate the potential impact and risk of pluvial flash flood on road network in the city center of Shanghai, China. Intensity-Duration-Frequency relationships of Shanghai rainstorm and Chicago Design Storm are combined to generate ensemble rainfall scenarios. A hydrodynamic model (FloodMap-HydroInundation2D) is used to simulate overland flow and flood inundation for each scenario. Furthermore, road impact and risk assessment are respectively conducted by a new proposed algorithm and proxy. Results suggest that the flood response is a function of spatio-temporal distribution of precipitation and local characteristics (i.e. drainage and topography), and pluvial flash flood is found to lead to proportionate but nonlinear impact on intra-urban road inundation risk. The approach tested here would provide more detailed flood information for smart management of urban street network and may be applied to other big cities where road flood risk is evolving in the context of climate change and urbanization.

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Section: Introductionmentioning

confidence: 99%

Evaluating the impact and risk of pluvial flash flood on intra-urban road network: A case study in the city center of Shanghai, China

Yin

et al. 2016

Journal of Hydrology

323

150

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“…Water demands are projected to increase throughout the 21st century, particularly in urban areas. Part of the increased demand will likely be due to summer ( Tague et al, 2008;Chang and Jung, 2010). Flow in the western Cascades, which is typically fed by shallow subsurface flow, diminishes rapidly during the dry summer season.…”

Section: Hydrology In the Pacific Northwest And Alaskamentioning

confidence: 99%

“…In the context of this report, infrastructure includes roadways, bridges, railways, as well as sea and airports. Critical (Chang et al, 2010). This study employed a variety of climate change scenarios, hydrologic modeling, roadway and stream channel surveys, and travel forecast models to estimate potential impacts in locations known to be susceptible to periodic flooding.…”

Section: Type 3 Infrastructure Failurementioning

confidence: 99%

Climate Change Impact Assessment for Surface Transportation in the Pacific Northwest and Alaska

MacArthur¹,

Mote²,

Figliozzi³

et al. 2012

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ABSTRACT:The states in the Pacific Northwest and Alaska region share interconnected transportation networks for people, goods, and services that support the regional economy, mobility, and human safety. Regional weather has and will continue to affect the physical condition and serviceability of these networks, yet the nature of climate changes and their potential impacts on the regional transportation system and its use are very poorly understood. The world's leading climate scientists, such as the Intergovernmental Panel for Climate Change, have reached consensus that global climate changes are being observed and will continue into the future, particularly increasing temperatures. Given this fact, the widely diverse topography, climate regimes, and localized variability of impacts within the region complicate efforts to understand and plan for adapting to the potential impacts of climate change on the regional transportation system. The rising costs of building and maintaining reliable transportation infrastructure place tremendous pressure on transportation planners, engineers, researchers and policy makers to deliver resilient transportation systems and maximize return on investment. As such, there is an urgent need to synthesize information to characterize the regional impacts of climate change to support the development of economical and resilient adaptation strategies.Climate impacts are posing continued challenges for state departments of transportation (DOT). Changing weather patterns and their associated physical, financial, and social impacts are affecting or will affect the way transportation professionals finance, plan, design construct, operate, and maintain multimodal transportation infrastructure. Many state transportation agency procedures and practices were developed without full consideration of the likely impacts of climate change. For example, more frequent, high intensity precipitation events and associated floods may lead to expensive and unpredictable catastrophic failures of roads and bridges designed with outdated hydrologic data. DOTs could experience hundreds of millions of dollars in infrastructure damage that potentially could be avoided with more robust data collection, planning, and design tools/methods for managing risks. Likewise, climate-related socioeconomic changes may also be occurring, but transportation planners are currently ill-equipped to analyze them and may be delivering transportation projects that do not address future needs. Decisions made today on the planning and design of the regional transportation system will affect resiliency of the system as region tries to adapt to climate change. Making well informed and thoughtful decisions now will help avoid costly modifications and disruptions to operations in the future.This report is built on several significant reports and projects that have been recently published. In 2008, the Transportation Research Board released the Special Report 290: Potential Impacts of Climate Change on U.S. Transportation, which primarily ...

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“…Despite the importance of bridges in transportation networks, notably few studies estimating economic cost due to bridge closures have been conducted [1,2]. In the limited work within this area of study, most have focused on earthquake-induced bridge closures [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Scenario-Based Economic Impact Analysis for Bridge Closures Due to Flooding: A Case Study of North Gyeongsang Province, South Korea

Kim

Shin

Kim

2018

Water

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Abstract:Flooding has the ability to severely reduce the capacity of a transportation network. The closure of even a single bridge, which often acts as a critical link in transportation networks, can have a severe impact on the entire network. This impact can lead to significant economic costs resulting from increased travel distances for drivers. Despite the significance of these costs, however, notably few studies have been conducted to determine the societal economic cost that would be incurred due to bridge closures. One possible reason for the lack of studies investigating bridge closures due to flooding could stem from the difficultly in collecting data. To address this issue, the methodology presented in this paper uses modeling and data resources that are available for major cities in most developed countries, including those in South Korea. We evaluate the economic impact of the bridge closures using the new administrative capital of North Gyeongsang Province, South Korea as a case study. Scenarios for the closure of bridges are derived from channel surveys and hydraulic analyses. These methods are used to overcome a lack of adequate data on historical floods in the new city. Traffic is forecasted to estimate the number of road users that would be forced to take detours due to inundated bridges. Contrasting travel distances when bridges are and are not operational, economic costs incurred by bridge closures due to flooding are estimated. The results indicated that bridge closures would result in an economic cost of 1563 USD to 44,180 USD per day, depending on how many bridges are closed and how many people are living in the new city. The estimates from this study will act as guidelines for identifying cost-effective mitigation and preparedness strategies aimed at reducing the frequency and impact of bridge closures due to flooding.

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Potential Impacts of Climate Change on Flood-Induced Travel Disruptions: A Case Study of Portland, Oregon, USA

Cited by 112 publications

References 37 publications

Evaluating the impact and risk of pluvial flash flood on intra-urban road network: A case study in the city center of Shanghai, China

Evaluating the impact and risk of pluvial flash flood on intra-urban road network: A case study in the city center of Shanghai, China

Climate Change Impact Assessment for Surface Transportation in the Pacific Northwest and Alaska

Scenario-Based Economic Impact Analysis for Bridge Closures Due to Flooding: A Case Study of North Gyeongsang Province, South Korea

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