According to the media, the drivers are carrying out 'operation escargot', the main idea of which is to occupy all lanes of the road and move at a minimal speed.
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However, as the participants themselves write on Twitter, they left one of the lanes free for special transport passage.
The drivers started their demonstration at 07:00 a.m. local time (06: a.m. GMT), partially blocking traffic on the ring road near the Paris Congress Palace, which is located near the Bois de Boulogne in the north-west of the capital.
As planned by the organisers, taxi drivers should make their way to the Roissy-Charles de Gaulle airport, which is located in the north-east of Paris.
According to Le Point, the drivers are demanding the introduction of a minimum tariff. The protesters' demands also include a partial exemption of the so-called tax on energy consumption, which determines the price of fuel.