As noted above, most States that are considering truck-only lanes are assuming those lanes would be paid for at least in part by tolls.
General-user charges paid into the road-use tax fund by large trucks would be used for operation and maintenance (O & M) of the truck-only lanes. An alternative not examined in detail in this article would be to have truck tolls cover not only trucks' share of capital costs, but also their share of O & M costs.
Another scenario would require passenger vehicles traveling in the general-traffic lanes to pay tolls, just as large trucks operating in the truck-only lanes would.
In short, the occupants of the passenger vehicles would be offered a higher quality service with the addition of truck-only lanes, and they would be asked to pay a premium for this higher quality service.
As discussed, the cost of truck-only lanes could reasonably be assigned to passenger vehicles and to large trucks based on the relative benefits each group of road users would derive.
A practical issue arises, however, in setting the level of tolls on road users to finance the construction and O & M costs of truck-only lanes: the issue of diversion.
* Level of the toll for traveling on the truck-only lanes
* Whether LCVs are allowed on the truck-only lanes and whether use of an LCV is appropriate for the trip in question