In addition to the obvious Congestion charging, we looked today at 2 other methods:
HOV lanes: (High Occupancy Vehicle lanes) or Carpool lanes, also known as 2+ lanes
Tried in Leeds (and other locations)
A WIKIPEDIA item on the lanes - what issues are identified with this method of control
LIFTSHARINGI showed you the liftshare website, which has almost 200 000 registered users.
There's a VIDEO on this page (which I can't get to embed, but you might be able to...)
What were the issues we identified with sharing lifts with strangers...