Emergency evacuation simulation at starting connection of cross-sea bridge: Case study on Haicang Avenue Subway Station in Xiamen Rail Transit Line

2020 ◽  
Vol 29 ◽  
pp. 101163
Author(s):  
Yameng Chen ◽  
Chen Wang ◽  
Jeffrey Boon Hui Yap ◽  
Heng Li ◽  
Songjiang Zhang
Keyword(s):  
Emergency Evacuation ◽  
Subway Station ◽  
Rail Transit ◽  
Evacuation Simulation

scholarly journals Comparative Analysis and Pedestrian Simulation Evaluation on Emergency Evacuation Test Methods for Urban Rail Transit Stations

1970 ◽  
Vol 24 (6) ◽  
pp. 535-542
Author(s):  
Zijia Wang ◽  
Feng Chen ◽  
Xiaohong Li
Keyword(s):  
Emergency Evacuation ◽  
Test Methods ◽  
Urban Rail Transit ◽  
Test Method ◽  
Rail Transit ◽  
Survey Analysis ◽  
Evacuation Simulation ◽  
Time Calculation ◽  
Simulation Results ◽  
Pedestrian Simulation

The emergency evacuation test method of rail transit station not only affects the operation safety of the station, but it also has significant influence on the scale and cost of the station. A reasonable test method should guarantee both the safety of evacuation and that the investment is neither excessive nor too conservative. The paper compares and analyzes the differences of the existing emergency evacuation test methods of rail stations in China and other regions on the evacuation load, evacuation time calculation and the capacity of egress components, etc. Based on the field survey analysis, the desired velocity distribution of pedestrians in various station facilities and the capacity of egress components have been obtained, and then the parameters of pedestrian simulation tool were calibrated. By selecting a station for the case study, an evacuation simulation model has been established, where five evacuation scenarios have been set according to different specifications and the simulation results have been carefully analyzed. Through analyzing the simulation results, some modification proposals of the current emergency evacuation test method in the design manual have been considered, including taking into account the section passenger volume, walking time on escalators and stairs of the platform, and the condition in which the escalator most critical to evacuation should be considered as out of service.

scholarly journals Emergency Evacuation Simulation and Optimization for a Complex Rail Transit Station: A Perspective of Promoting Transportation Safety

2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
Hui Xu ◽  
Cheng Tian ◽  
Yang Li
Keyword(s):  
Public Space ◽  
Three Dimensional ◽  
Emergency Evacuation ◽  
Transportation Safety ◽  
Rail Transit ◽  
Evacuation Simulation ◽  
Emergency Evacuations ◽  
Simulation And Optimization ◽  
Transit Station ◽  
Evacuation Routes

Rail transit stations with multifloor structures have been built in many cities to intensively utilize land resources and facilitate lives of community. However, being overcrowded with passengers results in high risks during daily operation. In response, this study conducted an emergency evacuation simulation and optimization in the three-dimensional (3D) space of “complex rail transit stations” (CRTSs). The aim of the paper is to provide a methodology to determine effective emergency evacuation strategies for CRTSs. The Lianglukou Rail Transit Station in Chongqing, China, was used as a case study and the AnyLogic simulation platform employed for simulating emergency evacuations. An emergency evacuation theoretical framework was established. The emergency evacuation strategies, including evacuation routes and evacuation times, were determined based on the theoretical demonstration. Simulation and optimization of emergency evacuation in the Lianglukou station were conducted. Accordingly, four main simulation results were obtained: (1) Escalators/stairs and turnstiles are key facilities in the evacuation; (2) Effective guidance for the evacuation is necessary in the public space of the station; (3) Passenger aggregation nodes should be guided for balanced evacuation; (4) Removing metal barriers is a useful evacuation optimization measure. The proposed research method and framework can be used by other CRTSs in the establishment of emergency evacuation strategies and effective optimization strategies to promote safety of transportation system. The research findings are beneficial to passengers in helping them provide valuable emergency evacuation guidance.

Numerical Simulation of Emergency Evacuation of a Subway Station: A Case Study in Beijing

2009 ◽  
Vol 52 (3) ◽  
pp. 183-193 ◽  
Author(s):  
C. S. Jiang ◽  
Y. Ling ◽  
C. Hu ◽  
Z. Yang ◽  
H. Ding ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Emergency Evacuation ◽  
Subway Station

scholarly journals Emergency Evacuation Simulation and Management Optimization in Urban Residential Communities

2019 ◽  
Vol 11 (3) ◽  
pp. 795 ◽  
Author(s):  
Hao Chu ◽  
Jia Yu ◽  
Jiahong Wen ◽  
Min Yi ◽  
Yun Chen
Keyword(s):  
Emergency Management ◽  
Emergency Evacuation ◽  
Evacuation Simulation ◽  
Residential Community ◽  
Residential Communities ◽  
Emergency Events ◽  
Simulation Results ◽  
Management Optimization ◽  
Indoor And Outdoor

Timely and secure evacuation of residents in communities is of great importance during unexpected disasters or emergency events. This study proposes a framework of evacuation simulation for optimizing emergency management in urban residential communities. Compared to traditional methods, the advantage of our framework lies in three aspects: (1) The method highlights easy-crowded areas in both indoor and outdoor evacuations. (2) Family behaviors are considered and implemented in evacuations. (3) Detailed measures on management optimization are spatially mapped based on a multi-level analysis and the comparison of evacuation simulation results in different scenarios. A case study in Changhongfang residential community, Xuhui District, Shanghai, China, was conducted to demonstrate the method feasibility. Simulation results have exposed potential evacuation problems in the community. A series of detailed recommended measures have been generated. These measures can help to create better emergency management for the community.

scholarly journals Pre-evacuation Time Estimation Based Emergency Evacuation Simulation in Urban Residential Communities

2019 ◽  
Vol 16 (23) ◽  
pp. 4599 ◽  
Author(s):  
Chen ◽  
Yu ◽  
Wen ◽  
Zhang ◽  
Yin ◽  
...  
Keyword(s):  
Urban Communities ◽  
Time Estimation ◽  
Emergency Evacuation ◽  
Critical Parameters ◽  
Evacuation Simulation ◽  
Evacuation Time ◽  
Residential Community ◽  
Residential Communities ◽  
Emergency Events

The timely and secure evacuation of an urban residential community is crucial to residents’ safety when emergency events happen. This is different to evacuation of office spaces or schools, emergency evacuation in residential communities must consider the pre-evacuation time. The importance of estimating evacuation time components has been recognized for approximately 40 years. However, pre-evacuation time is rarely discussed in previous community-scale emergency evacuation studies. This paper proposes a new method that estimates the pre-evacuation time, which makes the evacuation simulation in urban residential communities more realistic. This method integrates the residents’ pre-evacuation behavior data obtained by surveys to explore the influencing factors of pre-evacuation time and builds a predictive model to forecast pre-evacuation times based on the Random Forest algorithm. A sensitivity analysis is also conducted to find the critical parameters in evacuation simulations. The results of evacuation simulations in different scenarios can be compared to identify potential evacuation problems. A case study in Luoshanqicun Community, Pudong New District, Shanghai, China, was conducted to demonstrate the feasibility of the proposed method. The simulation results showed that the pre-evacuation times have significant impacts on the simulation procedure, including the total evacuation time, the congestion time and the congestion degree. This study can help to gain a deeper understanding of residents’ behaviors under emergencies and improve emergency managements of urban communities.

Analysis on Game Behaviors of Passengers in Emergency Evacuation in Subway Station

2011 ◽  
Vol 97-98 ◽  
pp. 576-582
Author(s):  
Ling Hong ◽  
Rui Hua Xu
Keyword(s):  
Emergency Evacuation ◽  
Subway Station ◽  
Rail Transit ◽  
Flow Volume ◽  
Evacuation Time ◽  
Passenger Flow ◽  
Emergency Event ◽  
Game Features ◽  
Special Environment ◽  
The Relationship

This paper proceeds from safety which is fundamental guarantee of rail transit sustainable development with the special environment of stations to analyze effects of passengers’ psychologies and behaviors and information of the emergency in the process of emergency evacuation, and studies the game features passengers and ‘emergency event’ and passengers in between. Firstly, single passageway is studied. Then the concept of relative density is presented, the relationship among evacuation time with passenger flow volume, running velocity of passengers, density, length and width of passageway are found out. Finally suggestions are made on contingency measures against the emergency.

scholarly journals Integrated IEW-TOPSIS and Fire Dynamics Simulation for Agent-Based Evacuation Modeling in Industrial Safety

Safety ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 47
Author(s):  
Wattana Chanthakhot ◽  
Kasin Ransikarbum
Keyword(s):  
Emergency Evacuation ◽  
Industrial Sector ◽  
Industrial Safety ◽  
Dynamics Simulation ◽  
Entropy Weight ◽  
Fire Dynamics ◽  
Evacuation Simulation ◽  
Evacuation Modeling ◽  
Agent Based ◽  
The Impact

Emergency events in the industrial sector have been increasingly reported during the past decade. However, studies that focus on emergency evacuation to improve industrial safety are still scarce. Existing evacuation-related studies also lack a perspective of fire assembly point’s analysis. In this research, location of assembly points is analyzed using the multi-criteria decision analysis (MCDA) technique based on the integrated information entropy weight (IEW) and techniques for order preference by similarity to ideal solution (TOPSIS) to support the fire evacuation plan. Next, we propose a novel simulation model that integrates fire dynamics simulation coupled with agent-based evacuation simulation to evaluate the impact of smoke and visibility from fire on evacuee behavior. Factors related to agent and building characteristics are examined for fire perception of evacuees, evacuees with physical disabilities, escape door width, fire location, and occupancy density. Then, the proposed model is applied to a case study of a home appliance factory in Chachoengsao, Thailand. Finally, results for the total evacuation time and the number of remaining occupants are statistically examined to suggest proper evacuation planning.

scholarly journals Perceived Trip Time Reliability and Its Cost in a Rail Transit Network

2021 ◽  
Vol 13 (13) ◽  
pp. 7504
Author(s):  
Jie Liu ◽  
Paul Schonfeld ◽  
Jinqu Chen ◽  
Yong Yin ◽  
Qiyuan Peng
Keyword(s):  
Regression Models ◽  
Influential Factors ◽  
Rail Transit ◽  
Linear Regression Models ◽  
Transit Network ◽  
Time Index ◽  
Trip Time ◽  
Buffer Time ◽  
Transfer Times

Time reliability in a Rail Transit Network (RTN) is usually measured according to clock-based trip time, while the travel conditions such as travel comfort and convenience cannot be reflected by clock-based trip time. Here, the crowding level of trains, seat availability, and transfer times are considered to compute passengers’ Perceived Trip Time (PTT). Compared with the average PTT, the extra PTT needed for arriving reliably, which equals the 95th percentile PTT minus the average PTT, is converted into the monetary cost for estimating Perceived Time Reliability Cost (PTRC). The ratio of extra PTT needed for arriving reliably to the average PTT referring to the buffer time index is proposed to measure Perceived Time Reliability (PTR). To overcome the difficulty of obtaining passengers’ PTT who travel among rail transit modes, a Monte Carlo simulation is applied to generated passengers’ PTT for computing PTR and PTRC. A case study of Chengdu’s RTN shows that the proposed metrics and method measure the PTR and PTRC in an RTN effectively. PTTR, PTRC, and influential factors have significant linear relations among them, and the obtained linear regression models among them can guide passengers to travel reliably.

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