It is a shame this is not applied to the oldie diesel trains. I often see a 9-carriage train that each has its own engine running idle at a crowded station. Hav

It is a shame this is not applied to the oldie diesel trains. I often see a 9-carriage train that each has its own engine running idle at a crowded station. Having 15 platforms as at London Bridge Station, provides a decent concentrated dose straight to the lungs. https://www.londonair.org.uk/london/reports/KCL_Air_pollution_emissions_from_diesel_trains_in_London.pdf https://www.londonair.org.uk/london/reports/KCL_Air_pollutio...