Featured Research

from universities, journals, and other organizations

Models for evacuation procedures in big cities after massive earthquakes

Date:
November 26, 2012
Source:
Tokyo Institute of Technology
Summary:
Researchers in Japan report on models for evacuation procedures in big cities after massive earthquakes based on the behavior of people in Tokyo after the Tohoku-Pacific Ocean Earthquake on March 11, 2011.

Risk of fire and spatiotemporal distribution of stranded people after the earthquake.
Credit: Image courtesy of Tokyo Institute of Technology

Tokyo Tech 's Toshihiro Osaragi and colleagues report on models for evacuation procedures in big cities after massive earthquakes based on the behavior of people in Tokyo after the Tohoku-Pacific Ocean Earthquake on March 11, 2011.

The details are also described in the November issue of Tokyo Institute of Technology Bulletin.

The Tohoku-Pacific Ocean Earthquake occurred on 11 May 2011. On this day all rail services in the Tokyo Metropolitan area were paralyzed amid the unprecedented confusion that followed the tremor.

Thousands people were unable to contact families and friends, and in a state of uneasiness, many decided to return home on foot. Main roads were heavily congested with both cars and people, a state which severely obstructed the movement of emergency vehicles.

Here, Toshihiro Osaragi at Tokyo Institute of Technology describes the construction of several models that describe decision-making and behavior of individuals attempting to reach home on foot in the wake of a devastating earthquake.

He has simulated the movement of individuals who have decided to return home on foot, and demonstrates the spatiotemporal distribution of those who might be exposed to hazardous city fires on their way home in the aftermath of a massive earthquake, which has been predicted to occur in the Tokyo Metropolitan area in near future.

Osaragi research underscores the importance of considering pedestrian flow under such extreme scenarios in order to establish emergency evacuation procedures. "Using the model proposed, we can assess not only the potential number of stranded individuals, but also their detailed attributes," says Osaragi. "Such information would undoubtedly prove helpful in actual planning for immediate post-disaster mitigation."


Story Source:

The above story is based on materials provided by Tokyo Institute of Technology. Note: Materials may be edited for content and length.


Journal Reference:

  1. Toshihiro Osaragi. Modeling a spatiotemporal distribution of stranded people returning home on foot in the aftermath of a large-scale earthquake. Natural Hazards, 2012; DOI: 10.1007/s11069-012-0175-8

Cite This Page:

Tokyo Institute of Technology. "Models for evacuation procedures in big cities after massive earthquakes." ScienceDaily. ScienceDaily, 26 November 2012. <www.sciencedaily.com/releases/2012/11/121126130846.htm>.
Tokyo Institute of Technology. (2012, November 26). Models for evacuation procedures in big cities after massive earthquakes. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2012/11/121126130846.htm
Tokyo Institute of Technology. "Models for evacuation procedures in big cities after massive earthquakes." ScienceDaily. www.sciencedaily.com/releases/2012/11/121126130846.htm (accessed October 20, 2014).

Share This



More Earth & Climate News

Monday, October 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Powerful Hurricane Gonzalo Heads to Bermuda

Raw: Powerful Hurricane Gonzalo Heads to Bermuda

AP (Oct. 17, 2014) — Hurricane Gonzalo pounded Bermuda with wind and heavy surf on Friday, bearing down on the tiny British territory as a powerful Category 3 storm that could raise coastal seas as much as 10 feet. (Oct. 17) Video provided by AP
Powered by NewsLook.com
So, Kangaroos Didn't Always Hop

So, Kangaroos Didn't Always Hop

Newsy (Oct. 16, 2014) — Researchers believe an extinct kangaroo species weighed 500 pounds or more and couldn't hop. Video provided by Newsy
Powered by NewsLook.com
Hurricane Gonzalo Is A Category 4 And Heading To Bermuda

Hurricane Gonzalo Is A Category 4 And Heading To Bermuda

Newsy (Oct. 16, 2014) — Powerful hurricane could hit Bermuda this weekend, and even if it misses it will likely do some damage. Video provided by Newsy
Powered by NewsLook.com
The Largest Volcano In Centuries Is Spewing Toxic Gas

The Largest Volcano In Centuries Is Spewing Toxic Gas

Newsy (Oct. 16, 2014) — One of the largest volcanic eruptions in centuries is occurring on Iceland. The volcano Bardarbunga is producing high levels of sulfur dioxide. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins