[deasine]

Tolling the viaducts is an incredibly stupid idea. Like paradigm4 said, this is a small section of road without traffic lights. If you are integrating the viaducts into an urban form, thus moving street life up onto the viaducts, then you are going to be slowing down traffic. Moreover, if you are tolling the viaducts, traffic is just going to spill down onto the other arteries entering downtown. No one is going to pay $3 when the alternative free option is literally below the viaduct. It's simply moving traffic elsewhere into the city. If you toll the viaducts, which will never happen, you should toll every corridor entering into downtown (i.e. London Congestion Charge).

Thanks Stingray for posting the plans. It looks something pulled out of any American suburb. The three lane viaduct portion rendering reminds me exactly 1-5 entering Portland after the Williamette River Bridge.