What technology was developed to help sailors escape a submarine accident?

The technology developed to help sailors escape from a submarine accident is known as the Submarine Escape and Rescue (SMER) system. This system includes various escape pods, such as the "DISSUB" escape capsule, which allows submariners to safely ascend to the surface in case of emergencies. Additionally, advanced technologies like the "Submarine Rescue Vehicle" (SRV) are designed to rescue trapped crew members by docking with the submarine and providing a safe means of escape. These innovations have significantly improved the safety and survivability of submariners during emergencies.