The black cab operators say the absence of wardens in an evening and on a Sunday is just the ticket for motorists who want to avoid paying on authorised car parks.
And the licensed hackney carriage drivers are taking their protest to the city’s MP Sir Mark Hendrick after claims that council officials are doing nothing to tackle the problem.
“It’s becoming dangerous, as well as being frustrating for us,” said one driver Michael Apicella.
“People are double parking in some streets and blocking the traffic. Buses can’t get through and emergency vehicles would struggle in some of the worst spots.
“We’ve tried to get Lancashire County Council to get tough with these motorists, but it’s getting worse rather than better.”
Sir Mark has agreed to meet the cabbies in the next few weeks to discuss their grievances.
In the meantime LCC has pledged to carry out more evening swoops to catch offenders.
“We take enforcement of all parking restrictions seriously,” said a County Hall spokesman.
“We have carried out targeted evening enforcement in Preston on 12 occasions since the start of August, issuing 60 penalty charge notices.
“We understand this has started to make an impact. However, we welcome the further intelligence provided.”