The Triangle Expressway is not only unique from a technological perspective, but also from a financial basis as well. It relied on toll-revenue bonds, Build America bonds, and Transportation Infrastructure Finance and Innovation Act loans.
"This project will be designed and built to use an all-electronic system. There will be no toll booths and no stopping to pay tolls. Customers purchase a transponder that automatically charges for road use."
Don't have a transponder? Smile for the "overhead high-speed cameras (that) snap an image of your license plate and drivers will be billed according to the number of miles driven."
If successful, expect future tollways to use the same, all-electronic system technology.
Thanks to Charles Siegel