Therefore, it was assumed in the PTS scenario that the travel
distance of the subways and railways would increase by 20% by 2020 and by 40% by 2050, along with a 6.1% and up to 12.2% increase by 2020 and 2050, respectively, in the bus-travel distance. Furthermore, the driving distance of lightweight cars were fore- cast to fall by 15% and 30% by 2020 and 2050, respectively, in line with improvements to the pedestrian environment; additionally, the driving distance of passenger cars would fall by 13% and 26% by 2020 and 2025, respectively, due to an increase within the scenario in the modal split of public transit.