Crosswalk signals don’t take into account how quickly different kinds of pedestrians can walk across the street. But maybe they should. A new app currently being tested in the Netherlands allows older people to hold traffic for longer, allowing them more time to cross the street, according to The Guardian.

The Crosswalk app, made by the Dutch transportation technology company Dynniq, alerts traffic signals that someone with mobility issues is waiting. Using GPS and the software that runs the traffic signals, the technology helps traffic signals detect if someone using the app is standing on the corner. If so, the traffic signal’s timing will adjust accordingly.

The app has four settings so that people can adjust how much extra time they’re given, based on their individual needs. That way, someone who only needs a few extra seconds doesn’t leave traffic waiting forever while they’re already on the sidewalk.

The issue with creating a mobile app for older people, though, is that many of them might not be comfortable with smartphones. After advertising in the local paper and holding informational meetings, Dynniq was only able to recruit 10 people to test the app.

Still, there are other possible applications for signal-changing technology. It could be used more generally for people with disabilities or to increase safety during situations like when groups of schoolchildren need to cross the street. It could also be expanded to traffic itself, to create lights that are better timed for bikes (so that cyclists don’t have to start and stop every block) or to create green lights for emergency service vehicles.

Right now, the app is being tested in Tilburg, a city of about 210,000 people, but it's only in use in some areas of town. The current test will run into the fall. If it proves successful, the city will equip more traffic signals with Crosswalk in the future.

[h/t The Guardian]