Audi Traffic Light Information consists of dual functions: Green Light Optimized Speed Advisory (GLOSA) and Time-to-Green. GLOSA calculates a ideal speed for removing a “green wave”. For example, if a duty indicates a germane speed limit, a subsequent trade light will be reached during green. Drivers do not have to accelerate unnecessarily, they are not stressed, and they expostulate some-more safely. GLOSA can also advise shortening speed gradually about 250 meters forward of a trade lights so that a motorist and a cars behind strech a intersection when a lights spin to green. This reduces costly stop-and-go traffic.
If interlude during a red light is unavoidable, a countdown displays a seconds remaining until a subsequent immature proviso starts (Time-to-Green). Drivers can relax, take their feet off a gas pedal and save fuel. A series of studies interpretation that drivers pierce by cities some-more good interjection to networked trade lights. In a commander project, Audi was means to revoke fuel expenditure by 15 percent.
“With Audi Traffic Light Information we wish to urge preference for drivers, boost trade reserve and inspire an careful character of pushing that looks ahead,” says Andre Hainzlmaier, conduct of growth for Apps, Connected Services and Smart City during Audi.
“To do this, we have to envision precisely how trade lights will act in a subsequent dual minutes. At a same time, accurate forecasts are a biggest challenge. Most signals conflict variably to trade volume and invariably adjust a intervals during that they switch between red and green.”
Audi and a plan partner Traffic Technology Services (TTS) have grown a formidable methodical algorithm that calculates accurate predictions from 3 sources: from a control module of a trade signals; from a real-time information of a trade computer, a multiple of road-occupation cameras, detector strips in a highway surface, information on coming buses and trams, and buttons that pedestrians press; as good as from chronological data. The foresee algorithm improves itself invariably and learns how, for example, a trade volume changes in morning commuter trade or during midday when children leave nurseries and schools.
The Audi swift plays a wilful partial in optimizing a trade light forecasts. “The cars send anonymized information when trade lights are crossed to an Audi backend, that checks either a tangible crossings of trade lights conform to a foresee data. Only after this are a trade lights privileged for a arrangement in a car,” Hainzlmaier explains.
In destiny a cities, too, will accept useful information about their trade light infrastructure. The information show, for example, either cars stop scarcely mostly during a sold intersection or either a normal watchful time is partially long. “We total a accessible information into reports that we will make accessible to a city authorities. Traffic lights can afterwards be given some-more fit phasing and trade will upsurge better.”
Audi Traffic Light Information premiered in 2016 in Las Vegas. Today this V2I use is accessible during some-more than 10,000 intersections in North America, including some 2,000 in Manhattan/New York City and some-more than 1,600 around a US collateral Washington D.C. Audi is also a world’s initial automotive manufacturer to network a series-production models with city trade lights.
Audi Traffic Light Information operates in all Audi e-tron, A4, A6, A7, A8, Q3, Q7 and Q8 models that have been constructed given mid-July 2019 (the “2020 indication year”). The pre-requisites are a Audi bond Navigation Infotainment package and a discretionary camera-based traffic-sign recognition.