Move To Staging Area Rule
Sends every released transporter to one shared waiting place.
Simpler to set up than a home base each, and appropriate where a fleet genuinely does queue at one staging area. Note that transporters will then contend for the way there, so a staging area on the main path is worse than no policy at all.
Only one transporter fits at the staging location; the others queue on the approach to it. That queue is what this rule forms, so a transporter waiting in it is not counted or reported as an obstruction. It is still waiting to move, though, so its time there counts as blocked, not idle, in fracTimeBlocked. To keep idle transporters off the running line altogether, give each a home base on a parking spur.
Parameters
location Name
the junction or station to wait at