A campaign for a direct bus route between Hounslow West and West Middlesex Hospital has reached parliament.
Nearly 240 people living in Hounslow West have signed a petition calling for a direct service to the hospital, but transport chiefs have rejected their appeal.
Feltham & Heston MP Seema Malhotra has now taken up their cause and will tomorrow present the petition at the House of Commons.
Despite living less than four miles from the hospital by road, those living in Hounslow West must currently change in Hounslow itself.
Campaigners claim the journey can take up to an hour, which they say is a long time for sick, elderly and disabled people, especially if they are waiting in the cold or extreme heat.
Subhash Mahajan, chairman of Rosemary Avenue Residents' Association, who collected the 236-signature petition, regularly visits the hospital himself for check-ups after having had a heart by-pass in 2000 and suffering from back pain.
"There's a large elderly population in this area, many of whom have to attend hospital regularly, and this can be a long and difficult journey for those already struggling with health problems," he said.
People living in Cranford have also joined the campaign, calling for a new or extended bus route to also serve their neighbourhood.
Janet Stevens, chairwoman of Firs Drive Residents' Group, said: "We're poorly served by buses full-stop. We have an ageing population, the roads are congested and the hospital doesn't want people filling up its car park.
"Ideally we want a new route running between West Middlesex Hospital and Ashford Hospital, which is also used by people in our neighbourhood."
Mr Mahajan first wrote to Transport for London (TfL) demanding a direct bus route more than two years ago, but has been told there are no plans for such a service.
TfL says there are already several high frequency routes along Bath Road to central Hounslow, where passengers can hop on a 110 or 117.
However, Ms Malhotra said this was not good enough as the accessibility of health services was paramount.
"For a resident travelling daily to visit a loved one in hospital, or a parent with children taking them to visit a relative in hospital, to deal with more than one bus adds significant stress to what can already be a difficult time," she said.
"I am backing calls for TfL to listen to the residents of Hounslow West and Cranford and review bus provision to see how they can make this happen."