CaRT have started using CCTV cameras to monitor certain areas for footfall, they are triangle V shaped, about 1ft high, black plastic with a sensor/camera eye towards the bottom. They have put one at Victoria Quays, Sheffield, which points at Victoria Quays Car park foot exit and Victoria Junction Café, which is opposite the Towpath side of the canal. So all that it is monitoring is mainly office workers going to and from work and how busy the café is at lunch time when said office workers have lunch and also people who have parked in the car park to walk into the city centre. I would say that only 10-20% of the people picked up by this camera actually walk/use the canal Towpath. So not really a true reflection of Towpath use.