Ihre Papiere Gefallen

I noticed a sprinkling of antenna on road signs on freeways in the Bay Area. I did some research and discovered that they read Fastrak RFID toll tags from cars to measure traffic flow. The aggregate information is available on 511.org, by calling 511 or by reading the electronic travel time signs.

Fastrak tags are a convenient way to prepay for tolls. The tags are optional but convenient.

All of the information collected is anonymised before storage.

It makes you wonder if this technology has any other uses?