Cargo Bikes

Brilliant, but Going the wrong way on one way streets is a recipe for anger

As PhilDAS says, this refers to contraflow arrangements, not to going the 'wrong' way along purely one-way streets. For some reason, people often insist on calling contraflow operation 'going the wrong way' (even if it's in quote marks as here)--that's because contraflow operation is always a distant second to full two-way working, i.e. a contraflowed street is still 'one way', just with exceptions.