Since motorists would want to avoid the congestion pricing zone, he claimed they would choose to park in neighborhoods just outside the pricing zone, in turn creating massive traffic jams and add more traffic and pollution to those neighborhoods.
They would choose to park in neighborhoods just outside the pricing zone and add more traffic and pollution to those neighborhoods. This is in turn. This was what he claimed. This turn is creating massive traffic jams. Motorists would want to avoid the congestion pricing zone.