It may look like this pavement's developed a nasty outbreak of measles, but the yellow spots are actually there to highlight an altogether different affliction - chewing gum.
They were marked in fluorescent chalk along the footpath between St John's Road and Isleworth train station to illustrate the amount of chewing gum being dropped there.
The publicity stunt was jointly organised by Hounslow Highways, which is responsible for cleaning the borough's streets, and the Chewing Gum Action Group as part of a national campaign to encourage chewers everywhere to bin their gum.
A circle was drawn around each piece of gum littering the busy stretch of pavement to emphasize the scourge of street cleaners, which drives many people dotty, before work began to clear the gum.
Hounslow Highways service director Rob Gillespie said: "We want the people of Hounslow to feel immensely proud of where they live which is why we have partnered with the Chewing Gum Action Group this year to raise awareness and proactively tackle the issue of gum litter.
"Year on year, chewing gum litter is costly and difficult to remove, therefore we hope that this campaign will encourage gum chewers to bin their gum the right way and understand that they can play a part in making Hounslow a more attractive place to live."
The Chewing Gum Action Group is chaired by Defra (Department for Environment, Food and Rural Affairs) and funded by the chewing gum industry to reduce the amount of gum littering Britain's streets.
Anyone caught dropping chewing gum or other litter in Hounslow faces an on-the-spot fine of £80.
For more information, visit www.chewinggumactiongroup.org.uk .
