Hence the role of ingress and egress routers is LSP specific. Crew ingress and egress is possible by either route. On top of that a high number of ingress or egress ACLs can be configured. Speedy, unimpeded ingress and egress from cockpits became even more critical for safety. ANPR systems are most commonly installed at points of significant sensitivity, ingress or egress. A large power-operated rear ramp allows for rapid ingress/egress of dismounts. The main disadvantages are the poor barrier against moisture ingress and oxygen ingress. Cartridge bottom brackets generally have seals to prevent the ingress of water and dirt. They also act as sealants to prevent ingress of water and incompressible materials. Noxious gases and the ingress of water are described. OpenShift introduced the concept of routes - points of traffic ingress into the Kubernetes cluster. Basic limewash can be inadequate in its ability to prevent rain-driven water ingress. They were an instant success, despite some obvious problems with rainwater ingress. The army sealed off all routes of ingress and exit around the temple complex. These precipitates can build up and form an effective seal against crack related water ingress.