Just as dawn fades into day, so too will the importance of this module. As the other station modules are fitted together, Zarya will be used primarily as a passageway, docking port and fuel storage site. Once it is connected to Zarya in 2000, it will take over the station's guidance and propulsion systems. Space Taxi Soyuz will arrive at the station transporting the first three-person crew in 2000. And it isn't just for arrivals.
Every home needs an escape plan.
The ISS has its own emergency exit. If something goes terribly wrong, the Russian Soyuz rocket will serve as the station's emergency escape vehicle. That is until the X-38 has been completed. Compartment-1 A Russian Soyuz rocket is scheduled to take the docking compartment into orbit in late 2000. The platform will provide a space-door for astronauts to start spacewalks and serve as a Soyuz docking port.