The NO SMOKING SIGNS at all London Bus stops are too small and are way way above eye level. They should be brought down to eye level and made bigger. Smoking adds to the woes of Londoners using Buses while waiting under the Bus Shelters. Many bus users, while waiting for buses at bus stops, suffer double whammy. Pollution from passing vehicles and non considerate smokers who claim not to see the NO SMOKING SIGNS. The signs are notoriously small and all are above eye level therefore not readily noticeable. Smoking causes and aggravates respiratory problems. Please make the SIGNS BIGGER and placed at eye level rather than up there, where you have to crane your head to look for and find them. Thank you.