Evaluating impacts of coastal flooding on the transportation system using an activity-based travel demand model: a case study in Miami-Dade County, FL

Yu Han, Changjie Chen, Zhong-Ren Peng () and Pallab Mozumder
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Yu Han: University of Florida
Changjie Chen: University of Florida
Zhong-Ren Peng: University of Florida
Pallab Mozumder: Florida International University

Transportation, 2022, vol. 49, issue 1, No 7, 163-184

Abstract: Abstract Recent climatic disasters have shown the vulnerability of transportation infrastructures against natural hazards. To understand the risk of coastal hazards on urban travel activities, this study presents an activity-based modeling approach to evaluate the impacts of storm surge on the transportation network under sea-level rise in Miami-Dade County, FL. A Markov-Chain Monte Carlo (MCMC) based algorithm is applied to generate population attributes and travel diaries in the model simulation. Flooding scenarios in 2045 are developed based on different adaptation standards under the 100-year storm surge and population projections are from the land-use conflict identification strategy (LUCIS) model. Our analysis indicates that about 29.3% of the transportation infrastructure, including areas of the US No. 1 highway, roadways in the south and southwest of the county, and bridges connecting Miami Beach area, will be damaged under the storm surge when a low-level adaptation standard is chosen. However, the high-level adaptation standard will reduce the vulnerable infrastructures to 12.4%. Furthermore, the total increased travel time of the low-level adaptation standard could be as high as twice of that in the high-level adaptation standard during peak morning hours. Our model results also reveal that the average increased travel time due to future storm surge damage ranges between 14.2 and 62.8 min per trip.

Keywords: Coastal flooding; Adaptation planning; Travel demands; Vulnerability; MATSim (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s11116-021-10172-w

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