I am a little confused by these objections, because I recall that the pricing for the HOT Lanes was to be congestion based/variable, which, if managed appropriately should preclude a “back up at the HOT lanes terminus.”  On the other hand, I can absolutely understand Arlington’s desire to access the operational projections so that they can plan accordingly for the traffic which may flow into their streets as a result of the project. (It’s only mildly ironic that a more highly functioning interstate highway might cause inner city traffic engineers some panic.)

As for the perceived competition the Capital Beltway HOT Lanes will present for mass transit (and carpooling) proponents, isn’t one of the requirements of the project that high occupancy vehicles get to ride the HOT lanes at reduced cost (and in the case of transit vehicles, at no cost)? Is roadway P3 really in competition with Mass Transit?  I’d really like to know how much of this controversy is based on valid concerns and how much of this bruhaha is political fear-mongering.  Anyone on the inside care to chime in?