By Chirag Trivedi BBC News Online, London

The passenger group has sent emails about its planned boycotts

The Passengers for Travel group has arranged five "No Go" days in which people are advised to car share, use buses, Network Rail, cycle or walk - anything but use the Tube.

They want to send a message to London Underground (LU) management and the unions that Tube users feel some staff are being overpaid for the service that passengers receive.

The group claims to have sent "tens of thousands" of emails and leaflets about the boycotts on 5, 14 and 19 July, and on 1 and 11 August.

It would be great to see an empty Tube train pull into a station in peak time Phil Watkins from Passengers for Travel

It is also calling for people to cancel renewing their season tickets to hit the finances of LU.

Phil Watkins, from the group, said: "We're fed up of Bob Crow and the RMT [Rail Maritime and Transport union] going on strike for petty reasons, and we're fed up of the atrocious conditions on the Tube.

"It's the passengers who suffer. We support action over health and safety - but we can't support them for striking because they want a 5% pay offer with no strings.

"That's more than many people, especially in local government, are getting.

"We feel some LU staff are overpaid. Station assistants - who we find rude and unhelpful - start on about �20,000."

But he is realistic about how many people will take part.

We are in the business of representing our members and we are ready, willing and able to deal with LU RMT spokesman

"It would be great to see an empty Tube train pull into a station in peak time," he said.

"But I don't think that will happen. If we get just 100 people taking part that will still send a message to LU."

He said the group is made up of about 20 friends who came up with the idea when talking about their frustrations of using the Tube.

A spokesman for the RMT said: "We are in the business of representing our members and we are ready, willing and able to deal with LU.

"It is time they [LU] become serious about negotiating."

A LU spokesman said the company will not respond to the threat of the boycotts but added "we can appreciate passengers' frustrations with industrial action".