Wiebren de Jonge (VU, Amsterdam / TIP Systems)

Security and Privacy aspects of Traffic Information & Pricing systems

After a concise introduction of Traffic Information & Pricing systems, we will explain some solutions that we have developed to meet the requirements of fraud resistance, privacy protection and cost-effectiveness.

First, we will show why continual transmission is far superior to transmission on demand (i.e. interrogation) for certain communication from vehicles. We will explain why we propose, and why it is important, to require from motorized vehicles that they must, during their traffic participation, use a transmitter with a short range (say, 100 meters) for continually transmitting certain information to the outside world.

Continual transmission can be used to considerably improve the fraud resistance and cost-effectiveness of e.g. electronic toll collection (ETC), distance-related road pricing (DRP), electronic vehicle identification (EVI) and tachographs. It makes it even possible to implement fraud-resistant collection of reliable information from vehicles (as is the case with DRP and tachographs) without it being necessary to use any fraud-resistant component in the vehicles at all! Furthermore, continual transmission offers considerable benefits for e.g. traffic flow analysis, traffic control and traffic safety.

Second, we will indicate how privacy can be protected. For example, we will show how traffic flow information can be collected in a privacy-friendly way if vehicles transmit (continually or on demand) the four least significant digits of their odometer reading, which constitute a nice semi-identification number.  

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Last Version - $Revision: 1.1 $ / $Date: 2004/05/24 08:45:36 $
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