Eh? So the "thugs" are coming from Peckh'm, then jumping right over the leafy streets of Peckham Rye and parts of East Dulwich, only to descend on HOP. I think not.

More likely scenario - Honor Oak Park (the B238), as it slopes down from Francesca Cabrini towards HOP station (as I understand, most of the mobile-muggings have happened on this stretch?) is bordered on one side by the cemetery, and One Tree Hill, both of which have some dense bushes and trees, and a few dark corners where it is quite easy to hide and wait for people to walk up or down the hill.