"In the UK, for instance, he calculates that a 10% increase in the use of public transport could result in 1.2 million more people reaching the recommended leve

"In the UK, for instance, he calculates that a 10% increase in the use of public transport could result in 1.2 million more people reaching the recommended levels of physical activity." I suspect that's partly because our public transport has been utterly decimated to the point that you have to walk several miles a day to get to work. Unless you live somewhere like London, I suppose.