Drivers have shelled out over £2million in fines on one bus lane.
The 70-metre stretch in Lambeth, South London, is Britain’s most lucrative.
It has stung 30,500 motorists with penalty charge notices of up to £130 since January 2018, the AA revealed.
Its president Edmund King said: “Councils continue to hoover up fines on an industrial scale as drivers who make a single mistake on unfamiliar roads are targeted ruthlessly.”
The AA accuse many councils of deliberately milking motorists by not marking their bus lanes properly.
And they have ignored government advice to warn rather than fine first-time offenders.
One driver successfully challenged his fine for using the 70m lane in Lambeth when a tribunal ruled signs were inadequate.
Across England, councils are expected to make more than £52million this year from bus lane cameras – a 33 per cent increase from last year.
London authorities are expected to make £28.5million this year, followed by Manchester with £5million, Essex on £1.8million and Reading on £1.7million.
Others raking it in are: Ealing (£1.4million), Coventry and Lancashire (both on £1.3million) and Bristol, Kingston on Thames and Kirklees, all on £1.2million.
Mr King added: “Councils outside London are lobbying central government to be given extended powers to enforce ‘moving traffic’ offences, such as yellow box junctions.
"This can’t be allowed to happen while drivers are hunted for fines income. The guiding principle needs to be deterrence.”
Lambeth council said: “The bus lane in Clapham Park Road is clearly marked and complies with all regulations and standards.”
