Agent-Based Simulation and Analysis of Human Behavior towards Evacuation Time Reduction

Human factors play a significant part in the time taken to evacuate following an emergency. An agent-based simulation, using the Prometheus methodology (SEEP 1.5), has been developed to study the complex behavior of human (the ‘agents’) in high-rise buildings evacuations. In the case of hostel evacuations, simulation results show that pre-evacuation phase takes 60.4% of Total Evacuation Time (TET). The movement phase (including queuing time) only takes 39.6% of TET. From sensitivity analysis, it can be shown that a reduction in TET by 41.2% can be achieved by improving the recognition phase. Exit signs have been used as smart agents. Expanded Ant Colony Optimization (ACO) was used to determine the feasible evacuation routes. Both the ‘familiarity of environment’ wayfinding method, which is the most natural method, and the ACO wayfinding, have been simulated and comparisons made. In scenario 1, where there were no obstacles, both methods achieved the same TET. However, in scenario 2, where an obstacle was present, the TET for the ACO wayfinding method was 21.6% shorter than that for the ‘familiarity’ wayfinding method

Harmonizing Climate Change Mitigation and Adaptation in Transportation and Land-Use Planning in California Cities

Abstract: Recent extreme weather events in California—wildfires, drought, and flooding—make abundantly clear the need to plan effective responses to both the causes and the consequences of climate change. A central challenge for climate planning efforts has been identifying transportation and land-use (TLU) strategies that simultaneously reduce greenhouse gas emissions (“mitigation”) and adapt communities so that they will be less affected by the adverse impacts of climate change (“adaptation”). Sets of policies that collectively address both mitigation and adaptation are known as “integrated actions.” This study explores municipal climate planning in California to determine whether cities incorporate integrated actions into their plans, assess the potential drivers of conflict between mitigation and adaptation in municipal plans, and identify ways the State of California can help cities more effectively incorporate integrated actions. The study methods consisted of a detailed analysis of climate planning documents from 23 California cities with particularly long histories of climate planning, plus interviews with 25 local, regional, and state officials who work on municipal climate planning. The authors found that some cities did adopt packages of integrated actions, and, promisingly, two cities with recently updated climate plans explicitly focused on the need for integrated actions. However, most cities addressed climate mitigation and adaptation in separate efforts, potentially reducing synergies between the two types of action and even creating conflicts. Since the first generation of climate action plans focused primarily on mitigation of greenhouse gases (GHGs), adaptation strategies have not yet been effectively or fully combined into mitigation plans in many cities. Also, a cross-comparison of plan content and interview data suggests that cities often had sets of policies that could potentially create conflicts—mitigation policies that would undermine adaptation capacity, and vice versa. In addition, where a city did adopt integrated actions, these efforts are typically not labeled as such, nor do the policies appear within the same policy document. The study findings suggest promising steps that both municipal and state governments can take to support integrated TLU actions at the local level. For example, cities can proactively link the content in climate mitigation and adaptation plans—a process that will require building the capacity for cross-collaboration between the various departments in charge of developing, implementing, and monitoring climate-related plans. As for the state government, it can provide funding specifically for planning and implementing integrated actions, offer technical support to help municipalities adopt programs and projects that produce integrated mitigation and adaptation benefits, and fund research in the area of integrated actions

Maximizing Ferries in New York City's Emergency Management Planning

In addition to providing fast, efficient, and enjoyable public transportation under normal circumstances, ferries have consistently proven to be the most resilient mode of transit during and after emergencies. Lacking reliance on either a fixed route or the electrical grid, ferries have historically been deployed for speedy evacuations from no-notice emergency situations. Moreover, ferries are typically the first mode of transportation to resume service during prolonged transit outages, relieving New Yorkers -- particularly in communities lacking bus and subway access -- from an extended transit paralysis.In spite of ferries' utility in emergency management, they are presently underutilized in New York's waterways. This paper is a call to action to policymakers and city officials to redefine ferries as critical emergency management assets. In doing so, the City will not only be equipped for a robust, interconnected ferry transit network, but it will also be prepared to facilitate effective waterborne evacuation and transit recovery. This paper makes eight key recommendations for maximizing the role of ferries in citywide emergency preparedness:1. Increase capacity for waterborne evacuation by expanding inter-borough ferry service.2. Provide ferry crews with emergency personnel identification.3. Prioritize reimbursements to ferry operators when allocating federal and state emergency relief funds.4. Fully integrate ferries with mass transit to facilitate seamless regional mobility.5. Coordinate all regional ferry infrastructures -- including all boats and landings -- as one unified system of emergency management.6. Develop coastal design standards to equip New York's shoreline for emergency response.7. Establish a Department of the Waterfront -- a new city agency -- and house a Waterfront Emergency Management division within it to coordinate long-term planning and preparedness efforts.8. Considering ferries as essential emergency management assets, apply for government emergency preparedness and recovery grants for coastal retrofitting and additional tie-up sites

Development in building fire detection and evacuation system-a comprehensive review

Fire is both beneficial to man and his environment as well as destructive and deadly among all the natural disasters. A fire Accident occurs very rarely, but once it crops up its consequences will be devastating. The early detection of fire will help to avoid further consequences and saves the life of people. During the fire accidents, it is also important to guide people within the building to exit safely. Because of this, the paper gives a review of literature related to recent advancements in building fire detection and emergency evacuation system. It is intended to provide details about fire simulation tools with features, suitable hardware, communication methods, and effective user interface

Developing an Adaptive Building Evacuation Simulation and Decision Support Framework using Cognitive Agent-Based Modelling

Preparing for an unprecedented event involving the movement of populations could take up large amounts of resources if done conventionally. The main motivation of this study is the behavioural modification approach which is an underexplored potential in evacuation dynamics, offering new possibilities in terms of practicality and ease of implementation. This paper tackles an adaptive building evacuation simulation and decision support framework that will serve as a guide to evaluate and propose evacuation strategies for disaster management researchers and decision-making authorities. The framework mainly involves the formulation of the cognitive agent model, the evacuation simulation, and the decision support. The timeliness in the Philippine context of the long-overdue “Big One” earthquake, the vulnerability of the case study, and the capability of the framework to be a standard guide where components can be customized by users based on the disaster type and site-specific requirements make this research a significant undertaking

Ports Resilience Index: Participatory Methods to Assess Resilience

Many hazard threats challenge the uninterrupted operation of the maritime transportation system across multiple temporal and spatial scales. Environmental hazard threats include hurricanes, storm surge, and sea-level rise. Resilience begins at the port, which provides the physical, economic, and social connection between sea and land transportation users. Ports function through port authorities, composed of people with decision-making abilities, which causes port resilience to be a complex process to understand. The paucity of metrics to quantify port resilience warrants other methods to study this place-specific topic. The goal of the Ports Resilience Index (PRI) project centered on the development of a qualitative resilience self-assessment tool for port authorities, using input of port practitioners. Using a participatory approach, I facilitated three rounds of expert consultation with forty-nine port practitioners across the Gulf of Mexico coast to develop the PRI. One round included pilot-testing the PRI with three port authorities. This dissertation uses qualitative methods of historical and comparative case study analyses, thematic coding of written hurricane plans, focus group discussion analyses, and participant evaluations to analyze the effectiveness of a participatory approach in engaging port stakeholders. The method to develop and complete the PRI might build capacity for resilience in port communities. Social interactions among port practitioners provided a look at the process of resilience that goes deeper than written hurricane plans but also identified challenges to resilience, including an emphasis on reactive, business-driven planning. Discussion facilitated by the PRI enhances anticipation by revealing collective perceptions of environmental risks and creating a non-competitive space to discuss risks. Completing the tool fosters on-going resilience through identification of opportunities to implement feasible resilient practices, including communication strategies and agency partnerships. The discussion-based assessment method of the PRI provides a connection between what researchers know about resilience and how we know it. A geographer’s perspective provides a solid foundation to study and understand the process of resilience at the human-environment interface. Resilient adaptability of ports to other hazards depends on flexibility in decision-making, which can be strengthened through participatory and place-based methods

Voronoi diagram with fuzzy number and sensor data in an indoor navigation for emergency situation

Finding shortest and safest path during emergency situation is critical. In this paper, an indoor navigation during an emergency time is investigated using the combination of Voronoi Diagram and fuzzy number. The challenge in indoor navigation is to analyses the network when the shortest path algorithm does not work as always expected. There are some existing methods to generate the network model. First, this paper will discuss the feasibility and accuracy of each method when it is implemented on building environment. Next, this paper will discuss selected algorithms that determine the selection of the best route during an emergency situation. The algorithm has to make sure that the selected route is the shortest and the safest route to the destination. During a disaster, there are many uncertainties to deal with in determining the shortest and safest route. Fuzzy logic can be hardly called for to deal with these uncertainties. Based on sensor data, this paper will also discuss how to solve shortest path problem using a fuzzy number

Intelligent evacuation management systems: A review

Crowd and evacuation management have been active areas of research and study in the recent past. Various developments continue to take place in the process of efficient evacuation of crowds in mass gatherings. This article is intended to provide a review of intelligent evacuation management systems covering the aspects of crowd monitoring, crowd disaster prediction, evacuation modelling, and evacuation path guidelines. Soft computing approaches play a vital role in the design and deployment of intelligent evacuation applications pertaining to crowd control management. While the review deals with video and nonvideo based aspects of crowd monitoring and crowd disaster prediction, evacuation techniques are reviewed via the theme of soft computing, along with a brief review on the evacuation navigation path. We believe that this review will assist researchers in developing reliable automated evacuation systems that will help in ensuring the safety of the evacuees especially during emergency evacuation scenarios