Transport chiefs fear their information blitz about the Leeds trolleybus scheme is being derailed by a dirty tricks campaign.
Around 70 per cent of official notices placed on lamp-posts to give people more details on the project have been vandalised or removed in one part of Headingley.
Many of the notices – which are printed on weather-proof paper that is designed to be difficult to rip – have been repeatedly defaced with anti-trolleybus slogans.
The signs are being put up to let residents know how they can have their say on the latest stage of plans for the New Generation Transport (NGT) trolleybus system.
NGT project director Dave Haskins said: “It seems that some of NGT’s opponents in the Headingley area are determined that their fellow residents should not be able to express their views on the scheme.
“Notices that we are legally required to put up along and near the planned route explaining how people can register their support or objections to the scheme are either being removed or defaced on a stretch between Weetwood Lane and the Original Oak public house.
“I have written to groups representing residents asking for their help in ensuring that everyone in their area has access to this information because it seems that there are some people who are resolutely opposed to their neighbours having their legal right to comment on the scheme.”
Headingley has been one of the focal points for objections to Leeds’s trolleybus plans. Critics say the system will deprive the area of green space and create traffic disruption on Otley Road.
There is no suggestion that any of the campaign or residents’ groups opposing the £250m project are behind the vandalism.
Construction work is due to start in 2017 or 2018 on the scheme, spearheaded by Leeds City Council and West Yorkshire passenger transport authority Metro.