Clearly, they couldn't just come here, but they should be extended southeast, to camberwell and brixton, peckham and yes, Nunhead and Dulwich. The topography is irrelevant, there are plenty of areas with hills, which have then already. Bear in mind, they're not just for cycling into town, but for making short local trips - or connecting to train and tube stations. It would be great to be able to cycle to brixton tube for example, or into Peckham.