For 29 years, Audi has been working, and perfecting TLI (Traffic Light Information). It started with a very few sets of lights. This technology gets communications going from the Audi to a set of lights. It all started with WiFi for in-car entertainment and vehicle-to-infrastructure for data to external infrastructure.
It started in 2016 by transmission of data to a couple of intersections, and years later, encompasses 22,000 intersections.
Before you get too excited, it doesn’t change the lights for you. It instead works with technology partners to provide drivers with speed advisories. Following the reconditions allows a smooth flow through the intersections.
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It is operating mainly in the USA, where reports from Audi Travolution and the U.S. Department of Transportation AERIS Research Program Report found that economy improved by 15%.
Not only did it smooth out traffic flow, but gave drivers the calmness that comes with knowing exactly when lights will change green. TLI works via and LTE signal embedded in Audi models and uses an Audi connect® PRIME or PLUS subscription.
A signal from the car is sent to servers that collect data that allows predictions to be made about that particular signal. Once collated and computed, the results are shunted back to the vehicle. Machine learning able to add a further layer to TLI where signal controllers may not be connected. The connected Audis only use data from intersections that have a “high level of confidence.” New intersections are added to the database each month, making the system even more accurate.
If it all sounds like an episode of Star Wars, it can be tried out in places like lunch cities Portland, Oregon, and Las Vegas. Since then, cities like New York City, Los Angeles, and San Francisco were added.
As a further affirmation of success, the system is now in other cities in the US, Canada, and Europe.
Is this the way of the future? Could we see a time where the signals might be done away with altogether? The cars could simply avoid each other, but while humans are involved, traffic lights will stay, at least for a while.
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Alan Zurvas is the founder and editor of Gay Car Boys, Australia's leading LGBTQI+ automotive publication. Before launching GCB in 2008, Alan's automotive writing was published in SameSame.com.au and the Star Observer. With over 16 years of hands-on car reviewing experience, Alan brings an honest, irreverent voice to every review — championing value and innovation over brand loyalty.
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