Roland Perry wrote:
at 06:13:10 on Sat, 21 Jan 2012, Adam H. Kerman remarked:

I didn't realize there were no transponders. It's enforced entirely
with photographs of license plates?

Even toll roads in the USA are enforced by photographs of licence plates

No one enforces toll collection with photographs of license plates as
the primary system of enforcement. It supplements transponders.

We may have a problem with the word "enforce". While it's true that
transponders are the primary means of collecting [US highway] tolls,
supplemented in many cases by a cash-lane, what the cameras are doing is
enforcing a regime where people need a transponder (or to use the
cash-lane).

Not relying on transponders at all is more a sophisticated system, sure,
as the vehicle owner doesn't have to obtain any additional equipment in
advance.

I cannot wait for the day when everybody pays using DNA as identification.

In the UK we talk about "Law Enforcement" to mean the way in which
people like the police ensure people obey the law by various means, but
primarily by the pursuit of offenders.

It's rather Big Brother-ish, isn't it. There's no privacy and it's
gotten easier and easier to track the movements of everyone. The loss
of privacy hasn't resulted in the prevention of crime, although it
can aid in finding perpetrators after the fact when it's too late.

Here in America, the cops are quite capable of capturing the dumbest
criminals, the ones who record their violent assaults (even murders
at times) then post them to social media.