Because it has the side benefit of being an easier/cheaper way to track people than license plate cameras. They could just do pay by plate and give people a paperless discount if they only wanted to save money. I bet EZpass gets a cut too so that adds yet another dimension to it.
>There is very little need to slow down
Yet morons still feel the need to do so creating the same traffic jams that high speed tolling was supposed to solve...
>This ensures that the roads that actually get used get the money from people using them
This is what they said about I90 in MA "the tolls will just stick around long enough to pay for the cost of construction." The it was "it'll only be used to pay for maintenance". Famous last words. We all know how that turned out, just another revenue stream it's impossible to take away or account for the use of.
A lot of the E-ZPass system is about the simplification of the back-office processing. When you get a transponder, you have an account set up to do the debiting and also identify your current mailing address. License plate recognition, by contrast, requires getting details from different databases, and the mapping to the vehicle owner is less robust. It really is easier for the toll providers if they use a transponder system than it is to do license plate recognition.
Also, E-ZPass is an interagency consortium, not a company. It's actually largely run by the Port Authority of NY and NJ. The only fee that appears to be collected is a one-time $10 to use the trademark.
In Chicagoland, everybody seems to have no issue ripping through toll gates at 75-80 miles per hour. I assure you we are no smarter than anywhere else.