If you mapped it by number of other cyclists seen per journey by area cycled in you could come up with some sort of density map... I think you'd need to do a lot of journeys to make anything coherent, and I think counting other cyclists whilst cycling is probably a bit sketchy in terms of keeping an eye on the road...
If you mapped it by number of other cyclists seen per journey by area cycled in you could come up with some sort of density map... I think you'd need to do a lot of journeys to make anything coherent, and I think counting other cyclists whilst cycling is probably a bit sketchy in terms of keeping an eye on the road...