Cycling crashes are too infrequent on most roads to gather robust insights about what infrastructure is safe.
PassBox helps cities by using advanced ultrasound technology to measure how close cars get to bicycles on your roads - before crashes occur.
Using data from thousands of passing events recorded by real cyclists, we accurately predict the infrastructure in your city which is dangerous
Measuring perceived safety
Close passes stop people from getting on their bikes.
We measure how close cars pass bicycles on your city's roads, mapping which roads are stopping people from cycling.
How it works
Targeted infrastructure measurement
Map your city
We perform targeted analysis of one street, accurately measuring close pass danger.
We return after infrastructure is build to see what's changed.
We prove which infrastructure works.
We put passboxes on a wide variety of cyclists in your city - from sports cyclists to casual commuters. Each cyclist measures two weeks of their everyday cycling.
We process hundreds of hours of rides, recording every time a car passes a bicycle on the road.
We analyse the data, pinpointing where infrastructure is needed.