We all know that if you want less of something, tax it.  The Colorado DOT is looking to have less traffic ,so they have started testing variable tolls – when congestion is bad, it costs more to use the road.  Problem solved.  But that creates new problems for JIT and other time-sensitive deliveries.  Will carriers start to provide rates based on the appointment time?  So now the problem has transferred to the shippers and carriers.  I suspect carriers will set the toll charge to the maximum and pass it on to the shipper.  Has anybody got a good solution?