Two hours of approximately synchronised raw GoPro video camera footage from two cameras filming the same mini roundabout forming the junction between Lensfield Road and Trumpington Street in Cambridge. Each camera was placed in an elevated position to get a good view of traffic at the roundabout. One camera is placed on Lensfield Road looking back towards the roundabout and one camera is placed at the roundabout on Trumpington Street looking back along Trumpington Street. Each camera is visible in the field of view of the other.