Audi's Traffic Light Information (TLI) system can alert drivers to imminent red lights and other traffic signals.
The TLI is set up so the car communicates wirelessly with traffic lights outfitted with the technology; if the light is red, or going to be red when the car reaches the intersection, a traffic signal icon appears on the head-up display, dashboard display, or both, with a countdown informing the driver how long it will take to see a green light.
The TLI also indicates the speed to maintain to avoid stopping at upcoming lights.
The Green Light Optimized Speed Advisory uses traffic signal data and vehicle position to calculate speed recommendations allowing drivers to reach traffic signals while they are green.
The upgraded signals transmit reports to the municipalities that operate them, and local governments send the information to Traffic Technology Services (TTS).
TTS sends that data to Audi, which sends it to cars via 4G LTE cellular connections.
From Popular Science
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Abstracts Copyright © 2019 SmithBucklin, Washington, DC, USA
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