Skip to main content

Audi’s traffic-light information system counts down to green lights

Getting stuck at a traffic light can be frustrating, but what if you knew when that light was going to change?

Audi is launching a system that allows traffic lights to communicate with cars, and it believes that will not only reduce motorists’ anxiety levels, but also traffic in general. The traffic light information system launches this fall on the 2017 Q7, A4, and Allroad, but there’s a hitch: it only works in cities with smart traffic lights.

The system is a form of vehicle-to-infrastructure (V2I) technology, another iteration of the vehicle-to-vehicle (V2V) communications tech that safety advocates believe could substantially reduce crashes by allowing vehicles to communicate warnings and information to each other and, in turn, to drivers.

Read more: This Audi suspension uses bumpy roads to generate electricity

In this case, a car uses its built-in 4G LTE connection to receive information from a traffic-management system that monitors lights. That system is run by Traffic Technology Services and is the reason why the Audi system is only available in certain cities. It can’t talk to traffic lights that don’t know how to talk back. Audi says availability will eventually expand to “metropolitan areas across the country through 2017 and beyond.”

While waiting at a compatible traffic light, the driver-information display in the instrument cluster (or head-up display, on vehicles so equipped) shows the time remaining until the signal changes to green. Audi views this as a “first step to other V2I features that could be linked to things like navigation and engine start-stop systems, Pom Malhotra, the carmaker’s general manager of connected vehicles, said. Malhotra believes this could improve traffic flow in cities, cutting fuel consumption and commuting times.

For now, though, the traffic-light information system is a nifty but limited new feature. It’s compatible with all 2017 Q7, A4, and Allroad models built after June 1, 2016, but requires Audi Connect Prime, a subscription service that also includes things like real-time gas price and parking information, streaming music, and geofencing and curfew alert features for teenage drivers.

Editors' Recommendations

Stephen Edelstein
Stephen is a freelance automotive journalist covering all things cars. He likes anything with four wheels, from classic cars…
Rivian R2 vs R1S: How will Rivian’s cheaper SUV compare?
The front three-quarter view of a 2022 Rivian against a rocky backdrop.

Rivian has finally unveiled the R2, its long-awaited attempt at a more affordable electric SUV. The new vehicle may not be available just yet, but fans of Rivian's design aesthetics and feature set are already looking forward to being able to order the new car. The R2 is targeted at being a more affordable take on the electric SUV and will sit alongside the flagship-tier R1S.

Let's get this out of the way right now: The R1S is most likely going to be a better vehicle than the R2. Rivian isn't replacing the R1S with the R2 — it's releasing the R2 as a more affordable alternative, and there will be some compromises when buying the R2 over the R1S.

Read more
Cybertruck production reportedly halted over pedal issue
Tesla CEO Elon Musk behind the wheel of a Cybertruck.

Tesla CEO Elon Musk behind the wheel of a Cybertruck. Tesla

Tesla’s Cybertruck has been hit by a production delay caused by an issue with a part of the vehicle, a number of media reports have claimed.

Read more
Don’t let the gimmicks fool you. The Ioniq 5 N is a serious track car
2025 Hyundai Ioniq 5 N drifting.

We’re finally getting to the fun part of automakers’ methodical quest to replicate their lineups with electric cars.

Performance versions of ordinary cars have been a staple of the auto industry for decades. But while we’ve already seen some variants of EVs boasting more power and more impressive stats — think Tesla Model S Plaid or Lucid Air Sapphire — the 2025 Hyundai Ioniq 5 N is the first to truly apply that format to an EV.

Read more