Some pods will indeed travel empty in the system to rebalance the supply of vehicles into areas of rush hour exodus. But this is a highly predictable event; the

Some pods will indeed travel empty in the system to rebalance the supply of vehicles into areas of rush hour exodus. But this is a highly predictable event; the pods will be supplied in advance and on less congested, roundabout routes. So it should have little bearing on peak capacity of any single link. At peak, the 1.5 occupancy rate I factored is achievable and quite typical for car commuting.