London taxis clog up Whitehall during a protest against Uber and other ride-sharing services in central London yesterday.

Reuters/Brussels

Allowing London’s trademark black cabs to use bus lanes while excluding other minicab companies does not constitute illegal state aid, an adviser to the highest European Union court found yesterday.

The opinion is the latest stage in a longstanding dispute between the capital’s transport authority and Eventech, which owns a minicab fleet used by the cab firm Addison Lee.

An advocate general, who advises the European court in Luxembourg, found that Transport for London’s (TfL) policy of only allowing black cabs to use the city’s bus lanes did not constitute an unlawful transfer of public resources - essentially a subsidy - to registered taxis.

“Where state authorities make a bus lane on a public road available to black cabs but not to PHVs (private hire vehicles) during the hours of operation of that bus lane, that does not involve a transfer of ‘state resources’, provided that all comparable undertakings are granted access on equal terms,” advocate General Nils Wahl said in his opinion.

The dispute comes at a time when alternative taxi providers, such as the car-sharing service Uber, have clashed with traditional cabs concerned about what they call unfair competition.

The conflict has led to Europe-wide taxi strikes and temporary bans on Uber in Germany.

Eventech had argued that TfL’s bus lane policy was an infringement of the freedom to provide services and also amounted to illegal state aid to the benefit of black cabs. But Wahl rejected those claims, saying that under EU state aid rules it was not necessary for member states to demand payment for access to public infrastructure, such as bus lanes.