Filters








97 Hits in 9.6 sec

Optimal Traffic Planning for Efficient Evacuation

S. R. Khadka
2016 Journal of Advanced College of Engineering and Management  
<p>Efficient traffic planning during evacuation in emergency has been important issue. The planning based on research significantly improves the quality of the emergency management.  ...  In this paper, we discuss on both optimization and simulation approaches of the traffic planning. Both approaches have been extensively studied in the literature with efficient softwares.  ...  The traffic planning can be made efficient if it is based either on optimization approach or on the simulation one. There have been several procedures depending on the situation of the evacuation.  ... 
doi:10.3126/jacem.v1i0.14929 fatcat:csejqkxmjvcypdzq35hxcl62wi

Understanding Urban Mobility and Pedestrian Movement [chapter]

Marija Bezbradica, Heather J. Ruskin
2019 Smart Urban Development [Working Title]  
environment to be simulated and pedestrian group movements to be modeled on real urban networks, together with congestion and evacuation pattern visualization.  ...  Urban environments continue to expand and mutate, both in terms of size of urban area and number of people commuting daily as well as the number of options for personal mobility.  ...  An example of a cellular automata model with transition matrix [54].  ... 
doi:10.5772/intechopen.86801 fatcat:dn7x5lfip5glxijg6qlku2vvpy

A Survey of Algorithms and Systems for Evacuating People in Confined Spaces

Huibo Bi, Erol Gelenbe
2019 Electronics  
We present a comprehensive review of research on emergency evacuation and wayfinding, focusing on the algorithmic and system design aspects.  ...  computing dynamic reactions that mitigate or prevent the worst outcomes of disasters.  ...  Cellular Automata Model-Based Algorithms Cellular automata models discretise a given structure into uniform "cells" where each cell can hold one person.  ... 
doi:10.3390/electronics8060711 fatcat:i6h2fpkyqrhgfpmjahvels5azu

Efficient Urban Inundation Model for Live Flood Forecasting with Cellular Automata and Motion Cost Fields

Maikel Issermann, Fi-John Chang, Haifeng Jia
2020 Water  
The simplified mathematical model Cellular Automata is combined with Motion Cost fields, which score the difficulty to traverse an area, to the urban inundation model CAMC.  ...  The development concentrated on an application in dense urban built-up areas with numerous buildings.  ...  The authors thank the Editors and anonymous Reviewers for their constructive comments that are greatly contributive to the revision of the manuscript.  ... 
doi:10.3390/w12071997 fatcat:o3mkecfuhveupfwz2umsi7o5uy

A Survey and Taxonomy of Urban Traffic Management: Towards Vehicular Networks [article]

Hany Kamal, Marco Picone, Michele Amoretti
2014 arXiv   pre-print
Afterwards, we discuss urban traffic optimization, presenting the most recent works on traffic signal control and vehicle routing control.  ...  urban traffic problems, based on inter-vehicle communications.  ...  An algorithm based on Cellular Automata is used -more precisely, a Nagel-Schreckenberg model.  ... 
arXiv:1409.4388v1 fatcat:ajg2ci4evzckzn7ldx6ikkirta

Ad Hoc Distributed Simulation of Surface Transportation Systems [chapter]

R. M. Fujimoto, R. Guensler, M. Hunter, K. Schwan, H. -K. Kim, B. Seshasayee, J. Sirichoke, W. Suh
2007 Lecture Notes in Computer Science  
Third, research in the analysis of real-time data is being used to define approaches for transportation system data collection that can drive distributed on-line simulations.  ...  Second, on-line simulation models that can incorporate real-time data and perform rollback operations for optimistic ad hoc distributed simulations are being developed and configured with data corresponding  ...  Transportation Simulation Models An ad hoc transportation simulation based on a cellular automata model was developed for our initial investigations.  ... 
doi:10.1007/978-3-540-72584-8_138 fatcat:bt5w4zuca5gk5l45lysawemkji

Integrating Decentralized Indoor Evacuation with Information Depositories in the Field

2017 ISPRS International Journal of Geo-Information  
The hypothesis will be verified through agent-based simulation by adding information depositories to a decentralized evacuation of an indoor environment.  ...  For evacuating dynamic events, deploying depositories at staircases has been shown more effective than deploying them in corridors. • Even when people move towards each other, for example, trying to get  ...  In contrast to building evacuation, other research deals with optimizing traffic during evacuations on an urban scale [25, 55] .  ... 
doi:10.3390/ijgi6070213 fatcat:wg5vn53es5gd5ch7l6os3bqlgi

The MATSim Network Flow Model for Traffic Simulation Adapted to Large-Scale Emergency Egress and an Application to the Evacuation of the Indonesian City of Padang in Case of a Tsunami Warning [chapter]

Gregor Lämmel, Hubert Klüpfel, Kai Nagel
2009 Pedestrian Behavior  
Acknowledgements This project was funded in part by the German Ministry for Education and Research (BMBF), under grants numbers 03G0666E ("last mile") and 03NAPI4 ("Advest").  ...  and techniques as well as hydraulic numerical modeling of small-scale flooding and inundation dynamics of the tsunami including evacuation simulations in the urban coastal hinterland for the city of Padang  ...  A typical example for traffic-based evacuation simulation based on static concepts is MASSVAC (Hobeika and Kim, 1998) although later versions contain dynamic aspects.  ... 
doi:10.1108/9781848557512-011 fatcat:tj2queho2fak7gktlxojdhsd4y

Risk Assessment of Pedestrian Evacuation under the Influence of Fire Products

Chenghao Ye, Yuechan Liu, Chao Sun, Stefan Balint
2020 Discrete Dynamics in Nature and Society  
Traditional methods are using FDS and Pathfinder for numerical simulation of fire evacuation and do not consider the impact of fire products on pedestrians, which will lead to erroneous evacuation results  ...  The results show that, compared with traditional methods, the fire evacuation model based on the evacuation speed coefficient can better reflect the evacuation effect of the real fire scene.  ...  Zheng et al. simulated the dynamics of pedestrian evacuation based on cellular automata-based underground flood diffusion [24] .  ... 
doi:10.1155/2020/9540942 fatcat:uzr4632uk5d7nnzvfveavcnrc4

Vehicle Routing Optimisation in Humanitarian Operations: A Survey on Modelling and Optimisation Approaches

Wadi Khalid Anuar, Lai Soon Lee, Stefan Pickl, Hsin-Vonn Seow
2021 Applied Sciences  
This paper focuses on the branch of a well-known OR problem, known as the Vehicle Routing Problem (VRP), within the selected scope of humanitarian operations.  ...  Finally, the trend and future outlook of VRP for the suggested humanitarian operations are discussed and highlighted.  ...  Based on the existing expert input on damage and possibility of repair, an optimal route for the emergency vehicle is then dynamically computed while using an improved Bidirectional Dijkstra optimal path  ... 
doi:10.3390/app11020667 fatcat:vo7i2wwz7vevvohbzqyn7v72ke

The representation and implementation of time-dependent inundation in large-scale microscopic evacuation simulations

Gregor Lämmel, Dominik Grether, Kai Nagel
2010 Transportation Research Part C: Emerging Technologies  
In the case of an evacuation simulation the network has time dependent attributes. For instance, large-scale inundations or conflagrations do not cover all the endangered area at once.  ...  The underlying flow model simulates the traffic based on a simple queue model where only free speed, bottleneck capacities, and space constraints are taken into account.  ...  We would like to thank Hubert Klüpfel for the fruitful discussion about pedestrian evacuation simulations.  ... 
doi:10.1016/j.trc.2009.04.020 fatcat:bi3cju3bwbhrfhwtsx4zkvubxq

Development of a systematic approach and mathematical support for the evacuation process

Yedilkhan Amirgaliyev, Aliya Kalizhanova, Ainur Kozbakova, Zhalau Aitkulov, Aygerim Astanayeva
2021 Eastern-European Journal of Enterprise Technologies  
An algorithm for solving the evacuation problem using the graph approach is proposed.  ...  The peculiarity of this work lies in the formation of an integrated approach for organizing the evacuation process both in peacetime as training for the event of an emergency situation (emergency), and  ...  The paper [16] proposed and analyzed an algorithm for Dynamic Real-Time Bandwidth Sharing Routing (DRTCCR).  ... 
doi:10.15587/1729-4061.2021.234959 fatcat:377ybveudbbjvl2kcpx72qerma

The role of agent-based modeling and multi-agent systems in flood-based hydrological problems: a brief review

Jose Simmonds, Juan A. Gómez, Agapito Ledezma
2019 Journal of Water and Climate Change  
This paper offers a brief review on agent-based models (ABMs) and multi-agent systems (MASs) methodologies' applications for solutions to flood problems, their management, assessment, and efforts for forecasting  ...  increasingly accepted point of view applied to flood modeling, with examples presented to show the variety of system combinations that are practical on a specialized architectural level for developing  ...  ACKNOWLEDGEMENTS The authors would like to express their appreciation to the Spanish MICINN under projects: TRA2015-63708-R and TRA2016-78886-C3-1-R for partial support of this work.  ... 
doi:10.2166/wcc.2019.108 fatcat:gnevcaxtjrg3dh3rjh5e5rrnoa

2019 Index IEEE Transactions on Intelligent Transportation Systems Vol. 20

2019 IEEE transactions on intelligent transportation systems (Print)  
., +, TITS Oct. 2019 3806-3817 Optimal Cloud-Based Routing With In-Route Charging of Mobility-on-Demand Electric Vehicles.  ...  ., +, TITS Dec. 2019 4308-4317 Optimization of Crowd Evacuation With Leaders in Urban Rail Transit Stations.  ... 
doi:10.1109/tits.2020.2966388 fatcat:xkvww7uabzhlzgfz3yiecyb75y

"Last-Mile" preparation for a potential disaster – Interdisciplinary approach towards tsunami early warning and an evacuation information system for the coastal city of Padang, Indonesia

H. Taubenböck, N. Goseberg, N. Setiadi, G. Lämmel, F. Moder, M. Oczipka, H. Klüpfel, R. Wahl, T. Schlurmann, G. Strunz, J. Birkmann, K. Nagel (+5 others)
2009 Natural Hazards and Earth System Sciences  
In comparison to most studies our focus is on high-end geometric and thematic analysis to meet the requirements of smallscale, heterogeneous and complex coastal urban systems.  ...  Taubenböck (hannes.taubenboeck@dlr.de) economic analysis of the population and evacuation modeling.  ...  We would also like to thank the Alfred-Wegener-Institute (AWI) for provision of deep-water propagation studies. Edited by: S. Tinti Reviewed by: three anonymous referees  ... 
doi:10.5194/nhess-9-1509-2009 fatcat:3nztzq3enratvjhrn23tdp6vwy
« Previous Showing results 1 — 15 out of 97 results