[NicknamedBob]

Ostensibly, for those residents of the Flying Castle who "commute" by way of the spherical elevator cars, a departure at the same time every day to the same destination would follow the same route, but it doesn't!

The traffic program follows a printed-circuit routing algorithm, selecting pathways based on A to B, but also on what kind of other traffic may be moving through the system.

Among other things, this automatically avoids stoppages, and maintenance snags, but in theory it could easily take you quite the long way around.

However, the communication programs are supposed to be continuous within the system.

[sionnsar]

The traffic program follows a printed-circuit routing algorithm

Not the best choice. I studied those in my Master's program. *\;-) But PCBs are not as dynamic as the situation you describe. (My first board was drawn by hand and designed to be single-sided...)