transport By
Carries the entity to a destination on the transporter it has claimed.
The loading and unloading delays are the time the entity spends being put on and taken off, during which the transporter is stationary and still holding its space -- which is why they belong here rather than being left to a separate delay: a transporter loading in a junction blocks that junction for exactly as long.
Return
what the journey cost, including any time spent unable to claim the space ahead
Parameters
the claim obtained from requestGuidedTransporter
the junction or station to be carried to
how long it takes to load the entity
how long it takes to unload it
orders the loading delay against other events at the same instant
orders the unloading delay likewise
names this suspension point when a process has several