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　If the immense number of persons stranded by a large-scale earthquake all try to return home at once, the streets and pedestrian paths will be filled with people, producing mass congestion. This may prevent vehicles of the police, fire department, and Self Defense Forces from immediately reaching the affected areas, and may interfere with search & rescue activities during the first 72 hours that are critical to saving lives.　There is also the possibility of encountering secondary injury caused by aftershocks or other causes while walking home, and attempting to return home immediately after a large-scale earthquake is extremely dangerous.　When a large-scale earthquake occurs, remain at your office, travel destination, or other safe location and avoid moving about unnecessarily.○ Refrain from heading home all at once.○ Prepare multiple methods of contacting family members.○ Check routes in advance and prepare comfortable walking shoes at your workplace in preparation for walking home after safety has been secured.○ Prevent employees from heading home all at once.○ Stockpile three days' worth of drinking water, food, and other necessities.○ Prepare means of communicating with employees.○ Provide protection of users at railway stations and commercial facilities.○ Keep students, children, and others in the school and ensure their safety.Roads around Shinagawa Station (March 11, 2011)(7) Measures for Stranded Persons　Background of Measures for Stranded People　According to TMG's damage estimates released in May 2022, approximately 4.53 million people in Tokyo will be stranded persons in the event of a large-scale earthquake.　The metropolitan government encourages people to avoid moving around unnecessarily but rather remain at their workplace, school and so on for three days in order to alleviate mass movements of people returning home in the event of earthquake disaster. However, it is still estimated that there will be approximately 660,000 people who cannot get home, such as shoppers, and people who do not have a place to take refuge at their workplace or school.　Recommendations for employers　Recommendations for schools　TMG Ordinance Covering Measures for Stranded Persons Enacted　TMG has established measures promoting restraint of all people trying to return home all at once, checking that family members and others are safe, providing information, securing temporary shelter, and support for returning home as the main pillars of ”the TMG Ordinance Covering Measures for Stranded Persons.” The measures for stranded persons are not limited to public rescue and assistance, but include independent rescue and assistance efforts by individuals and businesses, because of the need for society-wide measures.1. Preventing people from heading home all at once　Recommendations for citizens　Do not move about or go home unnecessarily41