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E-Zpass Could Kickstart Smart Cities
By using two antennas, the Caroake unit is able to determine in which direction EZPass transponders are signalling from.
Credit: MIT
Everyone likes the idea of a smart city. Traffic lights would automatically adjust to optimize traffic flow, you could find parking spaces without circling for hours, and enforcing speed limits wouldn't require a cop on every corner.
From IEEE Spectrum
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