London motorists pay 5 pounds a day for driving in the congestion zone during day hours, if they pay either in advance or on that day, or pay even more if they pay later. Image recognition is used to catch people who don't pay.
This article reports on Sun's proposal to track all of the cars in London via RFID to save costs by "eliminating the image recognition piece and the camera checking." What I don't get is how you can eliminate those things. If there are no cameras double checking the system, how do you catch the people who disabled or did not have transponders? The Sun representative says RFID system "would be far less easy to evade." Wouldn't it be far easier to evade unless there are expensive, obstructive, or invasive cross checking systems to ensure operational transponders?
On the other hand, is it reasonable for motorists to expect much in the way of privacy as they are already required to tag their cars with a unique serial number, readable from a distance: the license plate?