Accidents involving vulnerable users have not only not decreased but have actually increased in recent years, both in cities and on interurban roads. The presence of more bicycles, scooters, and pedestrians in areas shared with other higher-energy vehicles creates dangerous situations for different types of vehicles and between vehicles and pedestrians.

Road user caution is vital, but good visibility limits risky situations, which are especially noticeable when riding in low light condition or at night. Bicycles, scooters, and pedestrians often move in shadows. Redesigns of lanes, sidewalks, and paved areas have left some streetlights out of place after a renovation. The vegetation added to promote green areas, which improves air quality in the city, sometimes covers the streetlights that were installed before the vegetation was planted or grown.

The traditional method for checking street visibility levels is with a lux meter in hand, recording the measurements and the location where they are taken. Rare are the cities that can afford a complete analysis of visibility on all their streets, and even more unrealistic is the ability to analyze it frequently using the traditional method.

As part of the SAFELIGTH project, ASIMOB has developed an automatic nighttime visibility monitoring system. This system can be installed on any vehicle traveling at normal speed on the road and allows nighttime visibility values ​​to be taken from the vehicle itself. This system measures the visibility of every meter of street, recording evidence that shows the causes of light inconsistencies along a street. The absence of a streetlight at a specific location, damaged streetlights, and areas where vegetation requires pruning to avoid blocking the light will now be automatically detected.

This measure, combined with the locations of pedestrian crossings and intersections, which are also detected with the Autonomous Inspector, will allow for the detection of all locations where vulnerable users may be at risk due to poor driver visibility.