I agree with DerbyHillTop especially - there are enough lumps, bumps and incline on Thorpewood pavements & roads as it is (for pedestrians-great for cardio-vascular workout though!!?)
In my belief, sorry sensible drivers, more humps are required in Dartmouth Road and from the top of Sydenham Hill down towards Kirkdale. My personal favourite option would be to have speed cameras put in (although we all know there is lack of funding everywhere) to at least try and capture the late evening/early morning drivers, who seem so ecstatic that the road is clear, they feel the need to have to 'put their foot down', come hell or high water.