Each of the Space Colonies should have EEI, the Emergency Evacuation Infrastructure. This basically is an underground bunker and tunnelnetwork,which has exits on several locations on the moon or planet. This way,the colonists have a better flee-survival chance. Inside these bunkers and tunnels there is an extra fleet of Escape Vehicles,but the regular fleet of Space Vehicles is also based underground. Besides this,there must be agreement on how to maintain public safety and governance, before we set off to space. This article is a . You can help My English Wiki by expanding it.