A coupled high-resolution hydrodynamic and cellular automata-based evacuation route planning model for pedestrians in flooding scenarios

Li, Bingyao; Hou, Jingming; Ma, Yuchi; Bai, Guohua; Xu, Guo-Xin; Wu, Binzhong; Jiao, Yongbao

doi:10.1007/s11069-021-04960-x

Cited by 20 publications

(5 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1(a)). In literature [4,5,6], the neighborhood is the distance of one cell in eight directions (Fig. 1(b)).…”

Section: Methods Articlementioning

confidence: 99%

Obtaining Pedestrian Interest Regions Using Experimental Methods

Zhang

Liu²

2022

JERR

View full text Add to dashboard Cite

In pedestrian simulation, using the region of interest of pedestrians can solve the problem of data redundancy and complexity and lack of representation in the pedestrian saccade range, and establish an efficient pedestrian collision avoidance behavior model. The real-time eye movement data of unidirectional and bidirectional pedestrian flow were collected by eye tracker, and the mathematical models of pedestrian flow density, radius and angle of each region of interest were established. Analyzing the experimental data, it is found that the range of pedestrian interest region is affected by pedestrian density. The angle of the pedestrian interest region is generally not more than 90°, and the radius of the high-interest region and the low-interest region are negatively correlated with the pedestrian density. When the pedestrian density reaches a certain degree, the radius of the high-interest region and the low-interest region approach the fixed value respectively.

show abstract

“…1(a)). In literature [4,5,6], the neighborhood is the distance of one cell in eight directions (Fig. 1(b)).…”

Section: Methods Articlementioning

confidence: 99%

Obtaining Pedestrian Interest Regions Using Experimental Methods

Zhang

Liu²

2022

JERR

View full text Add to dashboard Cite

show abstract

“…Developed through extensive theoretical and experimental studies by Xia et al [9], The physically based and experimentally calibrated flood hazard assessment method evaluates the safety of individuals in contact with flood flow. It incorporates a set of forces acting on the human body, including buoyancy, drag, gravity, and normal reaction forces (figure 4).…”

Section: Physically-based and Experimentally Calibrated Hazard Assess...mentioning

confidence: 99%

“…Finally, the flood hazard for instability mechanisms can be assessed using the following expression: Unlike conventional empirically derived approaches that consider only water depth and velocity multiplication (hv) as the proportional term to the destabilizing or the "overturning" force on the body [3,5], this method considers depth x velocity squared (hv 2 ), making it more sensitive to higher velocities and momentum often encountered during extreme flood events. For this paper we considered a real human body with a 1.7-m height and 60-kg weight [10], the other parameters are demonstrated in table 1 [9].…”

Section: Physically-based and Experimentally Calibrated Hazard Assess...mentioning

confidence: 99%

Application of physically-based and experimentally calibrated method for flood hazard assessment: Case study of Zaio, Morocco

El Baida,

Boushaba,

Chourak

et al. 2023

E3S Web of Conf.

View full text Add to dashboard Cite

This study aims to assess the urban flood hazard in Zaio, Morocco by utilizing a rainfall-runoff transformation and hydrodynamic modelling. We utilized a statistical adjustment and The Soil Conservation Service–Curve Number (SCS-CN) method to estimate the 100-year return period flood hydrograph, which itself served as input for the Iber numerical model. Flood hazard assessment for human adults was calculated using a physically-based and experimentally calibrated method, a method that takes into consideration all physical forces acting on a human body during a flood, i.e., drag and buoyancy, and thereby facilitate a more precise assessment of urban flood hazard.

show abstract

“…Thus, two route search methods are incorporated into the model as (1) the shortest distance route search method (Mode 1) and (2) the system optimization-based route search method (Mode 2). In the shortest distance route search method, each agent focuses on finding the shortest route from their current location to the selected evacuation destination in the road network (Gallo and Pallottino, 1988;Fu et al, 2006;Li et al, 2022). Notably, an agent seeks to reduce their evacuation time without considering the effects of other agents' evacuation route selections.…”

Section: The Abm For Human Decision-making During Flood Eventsmentioning

confidence: 99%

“…Furthermore, in this study we also seek to examine how evacuation processes are affected by households' evacuation route searching strategies, which is another question that concerns emergency responders and policy makers. Previous studies have mostly applied the shortest distance path searching method for evacuees to find evacuation routes from their original locations to evacuation destinations (He et al, 2021;Bernardini et al, 2017;Du et al, 2016;Li et al, 2022). However, each evacuee's searching for the shortest evacuation path may not ensure system-level evacuation outcomes.…”

Section: Introductionmentioning

confidence: 99%

Development of an integrated socio-hydrological modeling framework for assessing the impacts of shelter location arrangement and human behaviors on flood evacuation processes

Jiang

et al. 2022

Preprint

View full text Add to dashboard Cite

Abstract. In many flood-prone areas, it is essential for emergency responders to use advanced computer models to assess flood risk and develop informed flood evacuation plans. However, previous studies have limited understanding of how evacuation performances are affected by the arrangement of evacuation shelters regarding their number and geographical distribution and human behaviors regarding the heterogeneity of household evacuation preparation times and route searching strategies. In this study, we develop an integrated socio-hydrological modeling framework that couples (1) a hydrodynamic model for flood simulation, (2) an agent-based model for evacuation management policies and human behaviors, and (3) a transportation model for simulating household evacuation processes in a road network. We apply the model to the Xiong’an New Area and examine household evacuation outcomes under various shelter location plans and human behavior scenarios. The results show that household evacuation processes are significantly affected by the number and geographical distribution of evacuation shelters. Surprisingly, we find that establishing more shelters may not improve evacuation results if the shelters are not strategically located. We also find that low heterogeneity in evacuation preparation times can result in heavy traffic congestion and long evacuation clearance times. If each household selects their own shortest route without considering the effects of other evacuees’ route choices, traffic congestions will likely to occur, thereby reducing system-level evacuation performance. These results demonstrate the unique functionality of our model to support flood risk assessment and to advance our understanding of how the multiple management and behavioral factors jointly affect evacuation performances.

show abstract

A coupled high-resolution hydrodynamic and cellular automata-based evacuation route planning model for pedestrians in flooding scenarios

Cited by 20 publications

References 22 publications

Obtaining Pedestrian Interest Regions Using Experimental Methods

Obtaining Pedestrian Interest Regions Using Experimental Methods

Application of physically-based and experimentally calibrated method for flood hazard assessment: Case study of Zaio, Morocco

Development of an integrated socio-hydrological modeling framework for assessing the impacts of shelter location arrangement and human behaviors on flood evacuation processes

Contact Info

Product

Resources

About