During the 2011 off the Pacific coast of Tohoku Earthquake, many residents living coastal area used car for their evacuation from mega Tsunami. Due to the rapidly increased traffic demand in road network and also trouble of traffic signals, heavy traffic congestions occurred in the road network. At first, this research investigated the condition of car evacuation in Kesennuma city. Secondly, ts...

The international universal calculations of the time for evacuation have their own features and limits and their effective areas have to be noticed. This study analyzes different ways to calculate the evacuation time, according to the relative indexes and rules for evacuation of Chinese sports stadium. According to the specific calculation in a university, it has safety hazards. On condition of...

In the case of emergency situations, robotic systems can play a key role and save human lives in recovery and evacuation operations. To realize such a potential, we have to address many scientific and technical challenges encountered during robotic search and rescue missions. This paper reviews current state-of-the-art robotic technologies that have been deployed in the simulation of crowd evac...

Open-space emergency evacuation is the movement of people away the threat in the short time. Task allocation is a fundamental research challenge in emergency evacuation domain of multi-agent systems (MAS). This paper proposes the multi-agent task allocation model which is called EV-GAP. Accordingly, the capability of agent was redefined to satisfy the requirement of open-space emergency evacuat...

The core idea of integrating the treatment of lane reversals and crossing elimination in evacuation network design is illustrated by the examples in Figure 1, which show how controlling lane entries and turning movements at intersections can create uninterrupted flow conditions for specific evacuation paths. The intersections must be expanded into subnetworks, as shown in Figure 2, to model an ...

Finding the optimal clearance time and deciding the path and schedule of evacuation for large networks have traditionally been computationally intensive. In this paper, we propose a new method for finding the solution for this dynamic network flow problem with considerably lower computation time. Using a three phase solution method, we provide solutions for required clearance time for complete ...

Hospital evacuations that occur during, or as a result of, infrastructure outages are complicated and demanding. Loss of infrastructure services can initiate a chain of events with corresponding management challenges. This report describes a modeling case study of the 2001 evacuation of the Memorial Hermann Hospital in Houston, Texas (USA). The study uses a model designed to track such cascadin...

In order to design a reasonable pedestrian evacuation and exclude the security risks in large stadiums, this thesis proposes the research of security model of evacuation in stadiums combined with multi-agent and cellular automata. The research is based on cellular automata model and the process makes extended analysis to the cell’s behavior of autologous, and then it makes simulation experiment...

We propose an approach to compute navigation instructions on mobile devices carried by people during a building evacuation in order to guide them to safe areas or exits. The mobile devices form an ad hoc network via local communication links and use this network to collect information about the current evacuation situation. This information is used for path planning in order to optimize escape ...

BACKGROUND Transvaginal Ultrasonography is a noninvasive and inexpensive medical imaging tool used for the diagnosis of various diseases. OBJECTIVES To identify an effective method to identify high-risk patients for developing malignancy after molar evacuation. PATIENTS AND METHODS A prospective serial assessment of 19 patients with gestational trophoblastic disease was performed. Clinical ...