Crash-corner
developed to protect the underground maintenance facilities of the planet Coruscant, crash-corners were tight-angle turns placed within a passageway. The walls of a crash-corner were heavily armored and supported by thick duracrete, allowing them to absorb heavy impacts without breaking. The idea is that any high-speed penetration run into a maintenance corridor - for sabotage or terrorist purposes - would result in heavy damage to the vehicle, effectively ending the attempt to reach the inner areas of the facility.