The integration context of the four engineering subsystems is represented as a part of an infrastructure system. The systems considered for integration are a bridge substructure, a railway track, a retaining wall, and a cable car system. The sub-systems are introduced individually including their specific characteristics and integration challenges.
The infrastructure system is composed of two different routes, the first route would be a railway system, while the other route is the cable car route. The other systems would be subsystems of these routes. The two routes would serve nearby destinations, meaning that the user of the system can have the possibility of choosing one of the systems, and having the possibility of using either one in case the other system was down for maintenance or repair. Therefore, maintenance tasks must be combined and bundled to minimize the total time of interruptions. Also we need to keep in mind that the tasks need to be grouped in a way where we make sure that at all times either one of the two routes is up and running.
In the context of this study, we would find the best combination for maintenance planning. As we can see in the diagram, the bridge substructure can be combined with all the different projects. It is also worth noting, that the maintenance plan of the Railway Track and the Cable Car would not be combined in any option, as mentioned earlier, we need to make sure that either one of these subsystem is always up and running when the second system is down.