Inalargemidwesternstate,acountyroadcommissioncollectstrafficdataatmajorintersections,andthentransmitsthedataviawirelessbroadbandnetworkstoenablereal-timeremotetrafficsignalcontrol.InamajorEuropeancapital,built-inroadwaysensorsdetecttraffictie-upsduetoaccidentsorweather,thenimmediately