I agree with Gee; though not perfect this a very large step in the right direction. Tolls only on the highways will drive traffic onto commuter trains and surface routes. A congestion charge on all routes into the central zone will mitigate vehicle diversion to surface routes ( btw there is already massive congestion at rush hour on these roads).
 I would be curious to know comparison on productivity of workers who drive vs ride. I find myself more focused and prepared for my work day if I can spend my commute ordering thoughts and planning day while on the train.