scholarly journals Integrating Human Behavior and Safety Measure into Evacuation Route Planning in a Volcanic Crisis

2020 ◽  
Vol 22 (2) ◽  
pp. 103-110
Author(s):  
Budhi Wibowo ◽  
Budi Hartono

Many traditional methods in evacuation route planning are motivated by the operational objective, such as total travel/clearance time. Little attention has been given to the human factor and the safety aspect of the evacuees during the planning phase. Our study aims to propose a simple yet practical route planning method that simultaneously considers human behavior, safety factor, and the travel time in a volcanic crisis context. The planning model is developed based on the shortest-path problem with a joint-cost parameter representing the three aspects. We present a large-scale street network in Merapi volcano as a case study. The result implies that employing a joint-cost parameter is effective for creating an evacuation route that is reasonably safe and in line with human cognition in navigation. The finding offers practical insights for the stakeholders as part of the greater effort to develop a systematic disaster management plan.

2021 ◽  
Vol 13 (5) ◽  
pp. 2637
Author(s):  
Dinh-Thanh Nguyen ◽  
Zhen-jiang Shen ◽  
Minh-Hoang Truong ◽  
Kenichi Sugihara

In disaster management, evacuation modeling is considered a useful visual tool to disaster managers for reviewing current evacuation strategies, estimating the ability of shelters to accommodate all evacuees, and developing evacuation route planning. Though there are several existing studies on evacuation modeling in the case of an earthquake, research that integrates road blockades into evacuation simulations is quite limited. From that viewpoint, this research aims to develop evacuation modeling with consideration of road blockades to simulate how residents move to evacuation centers (hereafter, shelters) through urban areas following an earthquake occurrence. The research also determines difficulties that residents may encounter under earthquake conditions, compared with normal conditions, corresponding to considering or not considering road blockades, respectively, such as having no access to shelters, taking longer routes instead of shortest routes, and so on. Debris from damaged buildings in an urban area is assumed as the main source of debris that would cause a road blockade. The model is applied to a case study of the Daitoku school district in Kanazawa city. According to simulated results, due to road blockades, occupants of many damaged buildings did not have access to shelters, and a lot of evacuees needed to move to shelters with longer routes instead of taking the shortest routes. Furthermore, the research results show the possibility of considering road blockades for improving current evacuation modeling and making evacuation simulations more realistic.


2016 ◽  
Vol 21 (1) ◽  
pp. 28-34
Author(s):  
Bam Bahadur Thapa ◽  
Shree Ram Khadka

Evacuation route planning is essential for emergency preparedness, especially in regions threatened by hurricanes, earthquake etc. The evacuees who do not travel on their own are gathered at few collection points, where they are brought on buses to take them to safe region in bus based evacuation. Bus based evacuation planning is more essential for developing country like Nepal. It is necessary to reach the destination as early as possible for bus based evacuation. The bus based evacuation planning (BEP) problem is a variant of vehicle routing problem that arises in emergency planning. The problem in this variant is that not all the evacuees can gather at the same time, elderly and handicaps may need special help like wheelchair and may need more pickup time. Another problem is that at the shelter, some people may need special care like medicine, oxygen etc. In this paper we review a mathematical model to minimize the duration of evacuation together with the dynamic programming and the branch and bound as solution procedures. Moreover, a brief report of a case study for Kathmandu has also been given.Journal of Institute of Science and TechnologyVolume 21, Issue 1, August 2016, page: 28-34


2017 ◽  
Vol 28 (12) ◽  
pp. 1750145
Author(s):  
Juan Wei ◽  
Zhenya Wu ◽  
Lei You ◽  
Junlin He ◽  
Hong Zhang ◽  
...  

In order to depict crowd dynamics in the case of smoke effect, a novel evacuation model is presented based on the extended cellular automaton. In the model, the moving probability of the target position in the next time step is given by combining distance gain and smoke gain at first. Through considering individual kinship and group effect, group disbanding and regrouping rules are defined, and the optimal evacuation route planning is determined. At last, the simulation was conducted to study the key factors influencing evacuation efficiency. The results showed that when the group size was small and the smoke spreading velocity was slow, priority selection of the shortest route strategy was good for reducing evacuation time, and large-scale group should be avoided as much as possible in evacuation process.


Author(s):  
A. Ramón ◽  
A. B. Rodríguez-Hidalgo ◽  
J. T. Navarro-Carrión ◽  
B. Zaragozí

2015 ◽  
Vol 3 ◽  
pp. 44-53
Author(s):  
Phanindra Prasad Bhandari ◽  
Shree Ram Khadka

Evacuation planning is becoming crucial due to an increasing number of natural and human-created disasters over last few decades. One of the efficient ways to model the evacuation situation is a network flow optimization model. This model captures most of the necessities of the evacuation planning. Moreover, dynamic network contraflow modeling is considered a potential remedy to decrease the congestion due to its direction reversal property and it addresses the challenges of evacuation route planning. However, there do not exist satisfactory analytical results to this model for general network. In this paper, it is tried to provide an annotated overview on dynamic network contraflow problems related to evacuation planning and to incorporate models and solution strategies to them developed in this field to date.


2020 ◽  
Vol 9 (7) ◽  
pp. 432 ◽  
Author(s):  
Wonjun No ◽  
Junyong Choi ◽  
Sangjoon Park ◽  
David Lee

Efficient evacuation planning is important for quickly navigating people to shelters during and after an earthquake. Geographical information systems are often used to plan routes that minimize the distance people must walk to reach shelters, but this approach ignores the risk of exposure to hazards such as collapsing buildings. We demonstrate evacuation route assignment approaches that consider both hazard exposure and walking distance, by estimating building collapse hazard zones and incorporating them as travel costs when traversing road networks. We apply our methods to a scenario simulating the 2016 Gyeongju earthquake in South Korea, using the floating population distribution as estimated by a mobile phone network provider. Our results show that balanced routing would allow evacuees to avoid the riskiest districts while walking reasonable distances to open shelters. We discuss the feasibility of the model for balancing both safety and expediency in evacuation route planning.


2017 ◽  
pp. 57-72 ◽  
Author(s):  
KwangSoo Yang ◽  
Shashi Shekhar

Sign in / Sign up

Export Citation Format

Share Document