The snag
I don't see the scheme being successful until
London is more cycle friendly to the novice cyclist, and
the traffic lights and one-way streets don't slow down the more expert cyclist.
I suppose the electric motor will mitigate some of the effort needed to get going again after being stopped by the lights.
For the novice, most Black Cab taxi drivers seem aware and drive safely with cycles about. Buses are big, hard to stop and hard to see all around, so can be a bit of a problem and many bus lanes are coated with speed sapping rough tarmac.
There are many roads parallel to the main arterial routes, that are blocked with one-way systems, but contraflow cycle lanes (or perhaps taxi lanes) could may be remove the need to cycle amongst the cars, vans and lorries.
Some subtle education via small rewards (quicker journey, less pollution) of the cyclists could improve their well being.