Designed to minimize waste and provide light only when and where it’s needed, adaptive lighting is a powerful tool for managing illumination and controlling costs, both in private settings and, even more so, in public spaces.
In the context of urban lighting, adaptive technology offers significant benefits, ranging from energy savings to enhanced safety, while also helping to reduce light pollution.
As the name suggests, adaptive lighting is the lighting designed to adjust to the real needs of a specific location and moment, based on parameters such as traffic flow, weather conditions, and ambient luminance.
This technology is made possible through the integration of multiple systems:
- a remote control system, a remote management platform, that connects and controls lighting points, such as those in urban areas, allowing for remote monitoring and adjustment;
- intelligent luminaires that can be networked and connected to the above-mentioned remote control platform and that, thanks to LED technology, allow precise light control;
- cameras with data preprocessing capabilities, that analyze environmental conditions and automate lighting adjustments based on predefined parameters.
There are two types of adaptive lighting management systems:
- TAI (Traffic Adaptive Installation), which adjusts lighting levels based on traffic density, dimming when traffic drops below a predefined threshold. It is the most widely used approach in Italy. The system allows for a reduction of up to 2 lighting categories if hourly traffic flow falls below 25% of the service capacity, and of 1 category if traffic drops below 50% of capacity.
- FAI (Full Adaptive Installation), is a more advanced system that considers additional factors such as weather conditions and ambient brightness, ensuring continuous and multi-factorial regulation. Beyond traffic-based adjustments, FAI dynamically adapts light levels to provide optimal visibility while considering natural light conditions. Compared to the traffic-based reduction model described above, an additional category reduction is applied when traffic falls below 12.5% of the nominal hourly flow.
Essentially, adaptive lighting works by collecting data from the area, processing it based on established parameters, and automatically sending it to connected lighting luminaires, which adjust brightness according to the needs.
Adaptive lighting can be employed in indoor environments, but its application in public spaces is particularly significant, marking a paradigm shift in both comfort of spaces and their sustainability.
Its benefits can be summarized in three key areas.
As demonstrated by a study conducted in the city of Perugia, adaptive public lighting can achieve energy savings of 25-35%, delivering significant benefits for local government budgets and reducing the overall energy footprint of communities. The same study also found that with just 300 lighting points across seven streets, CO₂ emissions could be reduced by 10-15 tons per year.
Moreover, brightness regulation helps extend the lifespan of lighting luminaires, as they operate in alignment with real needs, minimizing waste and further optimizing budget allocation.
Lighting only where, how, and when it is needed is the key principle in tackling light pollution. It is also a smart approach to reduce waste and improve urban efficiency, especially in densely lit areas.
A study conducted in Canberra has registered a 25% reduction in light pollution after 30,000 smart lighting luminaires were installed.
The remote-control system, typical of adaptive lighting solutions, also enhances maintenance and repair operations, as each luminaire is connected, monitored, and traceable in real-time.
By dynamically adjusting brightness to ensure optimal visibility, adaptive public lighting enhances safety for pedestrians, cyclists, and drivers alike, therefore fully aligning with the UNI 11248 regulations.
This standard classifies roads into different categories and defines specific lighting requirements for each, aiming to maximize safety and visual comfort while keeping luminance within strict limits. This prevents excessive lighting installations, helping curb light pollution.
In critical areas such as pedestrian crossings and roundabouts, adaptive lighting ensures maximum visibility at all times, prioritizing safety in high-risk zones.
Adaptive public lighting plays a crucial role in the development of smart cities. By responding in real-time to natural light levels, weather conditions, and real luminance needs, it minimizes energy waste, enhances citizens’ quality of life, and makes urban spaces safer and more comfortable.
Investing in adaptive lighting solutions is not just a technological upgrade, it is a decisive step toward more connected, safer, and sustainable cities.
