Easy to activate and it appears seamlessly on your screen • Can you cross most of the connected intersections? • The green light icon looks like an Easter egg that magically appears
Incoherent and unreliable • Does not work in the busiest areas • Limited density • Limited availability even in connected cities
This is a useless feature that does not add much to the driving experience. If you drive a lot, this might be helpful, but do not pay for the Connect Prime subscription just for GLOSA. The information of the red light is much more useful.
Stop at traffic lights can be very annoying when you try to go fast – but fortunately for everyone, Audi may have found a solution.
Audi has released this year an update of its "intelligent" dashboard for vehicles, which connects to the infrastructure of the city and displays information on the traffic lights for the driver. Audi the feature film Green light optimized speed warning (GLOSA), and it promises to facilitate the capture of green lights with recommendations on driving speeds.
To test this feature, I headed to the two Bay Area sites where GLOSS is operational for connected Audi drivers: Palo Alto, California, and Walnut Creek, California. Currently, Audi only works with cities to connect 4G LTE compliant vehicles to traffic management systems. Within the immediate limits of the city of San Francisco, I was unable to obtain any driving advice. So I headed to the suburbs.
It is important to note that prior to the launch of GLOSA, Audi had released a V2I (Infrastructure Vehicle) feature that allowed its cars to "communicate" with road infrastructure, such as traffic lights. The German manufacturer has added this to its existing Traffic Signal Information System (TLIS), which tells Audi how long they will wait at a traffic light.
The latest update provides drivers with more information about the traffic lights, but instead of sitting at a red light, the dashboard communicating with the traffic lights recommends a driving speed to get to the traffic lights. green. The connected system knows when the light is green and can help you to clock it.
In the United States, the green light warning function is available so far in 13 cities at 4,700 intersections. As recently as last year, only 1,000 signals were communicating with cars. It has evolved quickly, but it is not yet widespread – take a look at the map below. And even though it's at 4,700 intersections, there's still the impression that the feature is being tested. But it is technically out of any test phase, and available for Audi Connect Prime users on certain Audi models 2017, 2018 and newer.
Using the advisory system, drivers should be able to cross a series of connected lights without stopping. But I did not find it easy to master, especially in more urban, more crowded downtowns, where the signals were mainly located in the two areas I crossed.
Whenever I approached a smart and connected traffic signal in a 2019 Audi A8, the company lent me to try the GLOSA function, a mini green road signage icon appeared on my dashboard and my head-up display. The icon appeared next to the speedometer and my current speed. A small number next to the green icon indicated how fast I had to go – never past the posted speed limit and nothing ridiculously slow.
Since there were not many GLOSS enabled intersections, every time that happened, it was as if I had found the price of a treasure hunt. Usually, by the time I stopped, I was able to quickly assess whether I could even go as fast or as slowly as it was. Everything was very fast and you moved and followed the traffic so often that you approach the intersection before realizing that you do not reach the recommended green light rate. It was not annoying mainly because it was so fleeting and a subtle addition to the crowd of driver information in front of you.
During a four-light crossing on a main street in the suburbs of Walnut Creek, California, I managed to navigate through the greens, which I had not seen with the tips posted on my screen head high projected on the windshield.
The new feature of Audi was mainly a disappointment. I was ready to catch the "green wave" of green lights backed by connected car technology, but it was more frustrating than navigating smoothly. This is also a useless feature.
What was easy, it was to turn on the system. I activated it in the car's support settings and, as if by magic, the green light icon (and the red fire timer) appeared on my dashboard and s & # 39; 39, display at all "smart" intersections with which cities like Audi can connect.
Especially the green board did not do much for my reader. Since the recommended speed was rarely achieved, I could not count on it. And when he appeared with his advice, I was already driving at that speed or it was impossible to do it because of other cars or the situation on the road. In the clip below, the small green street lamp icon represents the GLOSS, projected on the windshield and under the speedometer.
Other times, I turned on the light, but was going below the recommended speed, which made me wonder if GLOSA was effective. Here it was said that I should reach 45 mph, but I managed to cross the intersection around 36 mph.
It really looked like a treasure hunt when the GLOSS icon appeared on the dashboard. Balaji Yelchuru of Audi, a strategist in charge of connectivity, told me during a phone call: "All signals can not be connected", especially because of older systems dating back 25 to 50 years. But as Audi is the first automaker to connect to green light information, more and more cities are interested in making this data available.
In Palo Alto, GLOSA lighting was scarce and concentrated in the bustling commercial center of the city. It was almost impossible to turn on the green lights as I walked down the bustling University Avenue. I had more success in a parallel street, but it was still inconsistent and inconsistent. It did not seem to be something I could count on – for the moment.
Audi Yelchuru said it worked better in semi-urban areas without significant traffic. In northern Virginia, where he is based, he said he crossed 15 intersections in a row by following the speed advice of the car.
When it worked – in a way – for a brief moment in Palo Alto, it did not really improve the driving experience and it was mostly superfluous information, I was trying to cross the city center when a rainy evening. I was especially surprised when the recommended speed was reached and I had only a few seconds to adjust my driving pace.
Yelchuru hopes that GLOSA can continue to grow and "improve the overall transportation system" by making everyone move and ultimately drive cars to more efficient routes. He sees GLOSA working best in autonomous vehicles to inform the pilot robot how fast it must adjust the speed of the vehicle.
As a human driver, while I was trying to catch all the green lights, I hit a lot of reds. But that hit Audi's red light counter, which I found useful – far more useful than the green light board. This was information I could use, especially when the light was on for more than a minute. An intersection in the suburbs of Walnut Creek has recorded for 124 seconds of waiting. It was also accurate, which was crucial.
He gave me permission to scroll through my music and use the hands-free voice command to read my text messages. Even if it stopped me, it saved me time by preventing me from changing radio stations or taking a sip of water.
But all those countdowns to the red light on my screen meant that the "green wave" never really happened. If only all the other cars came out of the way.