In 2025, to achieve its carbon neutrality goal, the City of Paris adopted the NEXQT platform, an AI-based decision-support system that provides a near real-time view of emissions across the city, to allow the municipality to measure and improve the environmental efficiency of its actions.

While NEXQT is also adapted for its building-related energy/carbon topics regarding the Climate Plan, the Paris deployment also places a focus on mobility, which represents an important share of local emissions.

Thanks to HERE technology, NEXQT provides the City of Paris with network and traffic data for all roads (from the main ones to the smallest) to calculate the CO₂ emissions generated by cars and trucks circulating on almost the totality of the roads, that is to say around 1,700 kilometers of public roads and the Paris ring road (Périphérique, 35 kilometers). This precious information allows the city to precisely quantify the carbon footprint of mobility and assess the impact of transport policies such as pedestrian zones or new cycling infrastructure.

To keep its elected officials and the general public informed, the City of Paris needs accurate traffic and emission data, which NEXQT is able to provide with HERE's support.

“Thanks to this data-driven approach, we can now measure the actual effects of initiatives such as the pedestrianization of school streets or the creation of new bike lanes,” says Mr. Patrick Pigache, Head of Data Strategy Mission, Ecological & Climate Transition, at the City of Paris.

For instance, emissions on Rue de Rivoli and surroundings have fallen by 34% to 73% over four years following the introduction of the bicycle lane. Before having the use of the NEXQT SaaS platform, it was difficult and costly for the city to quantify the impact of such measures.

On top of a traffic data history of 5 years, by integrating HERE Traffic Analytics product into NEXQT’s SaaS platform, Paris can have an overview of future actions within a digital twin testing potential results of measures like the “Rues aux écoles” (more than 500 of them in Paris), or new bicycle lanes, before they are implemented, thanks to visualizations based on numerous similar existing situations.

According to Mr. Fouzi Benkhelifa, CEO and cofounder of NEXQT, “Cities today use only a fraction of the data available to them. Combining AI with HERE’s trusted mobility data helps unlock this potential to accelerate the transition toward low-carbon urban mobility.”

The collaboration between NEXQT and HERE Technologies for the City of Paris demonstrates how key data regarding traffic intelligence can greatly help cities take better climate action.

The NEXQT platform is adapted for more than 80 countries worldwide, with first services outside of France already deployed.