A smarter way to cross the road
A new concept in pedestrian crossing design could transform road safety by innovatively combining existing technologies. This intelligent, responsive crossing system would work around the clock to protect pedestrians and alert drivers.
The Concept #
The proposed system would use smart cats’ eyes starting 30 metres before each crossing. These LED-equipped road studs would create a wave of light guiding attention forward. When someone steps onto the crossing, the pattern intensifies, and the crossing itself illuminates.
This isn’t just about night-time visibility—it’s about creating an unmissable signal that demands driver attention at any hour. The system employs three warning zones:
- Early warning (green) at 30 metres
- Intermediate warning (amber) at 20 metres
- Immediate approach (red) at 10 metres
The Need #
Current pedestrian crossings rely heavily on driver attention and goodwill. While many drivers are conscientious, it only takes one distracted moment to create tragedy. Dynamic, graduated warnings could create multiple opportunities to catch driver’s attention.
Technical Feasibility #
The concept builds on three proven technologies:
Active road studs, as used on sections of the UK’s M25 motorway, incorporate LEDs that are visible from up to 900 metres away - ten times further than traditional reflective studs. Each unit operates independently, powered by small solar panels, and can withstand over 20 tonnes of direct pressure.
Pressure pad systems are already common at pedestrian crossings worldwide, triggering traffic signals when stepped on. Modern versions use piezoelectric sensors that can detect weights as light as 20kg (about the weight of a small child) and activate within milliseconds. These systems work reliably in all weather conditions and require minimal maintenance.
Smart LED illumination is now standard in cities worldwide. Modern LED arrays provide precise light control and can adjust to ambient conditions automatically. The LEDs used in road infrastructure typically last for over 50,000 hours of operation and use 75% less energy than traditional lighting while providing better visibility.
Development Status #
This concept is currently in development, with detailed specifications being refined. As cities worldwide adopt Vision Zero initiatives, reimagining pedestrian crossing design becomes increasingly relevant.