Arterial roads take more of a beating since there are no freeways to relieve some of the stress. This means they wear faster.
Fontana calls bulls*it on the road/BRT funding plan
http://www.lfpress.com/2013/10/07/london-mayor-joe-fontana-fires-bs-salvo-in-transit-debate
Tolls proposed to curb funding shortfall:
http://www.lfpress.com/2013/10/07/tolls-eyed-to-fill-funding-shortfall
What's London going to do, build their own 407ETR?