Train services have been slashed because of the strike in France
Train services have been slashed because of the strike in France AFP / STEPHANE DE SAKUTIN

The head of a hardline French trade union on Friday vowed to press on with a crippling strike that has cast a shadow over Christmas celebrations, with the stoppages entering a fourth week and becoming the longest-lasting such action since the 1980s.

The strike against pension reforms championed by President Emmanuel Macron began on December 5 and has seen most of the Paris metro shut down ever since and only a fraction of inter-city trains running.

Now on day 23, the union stoppage is longer than the notorious 22-day strike of the winter of 1995 under late president Jacques Chirac against welfare cutbacks which forced the then government into a U-turn.

Rail and metro traffic remains severely disrupted on the 23rd day of a strike against the French government's pension reform
Rail and metro traffic remains severely disrupted on the 23rd day of a strike against the French government's pension reform AFPTV / Hassan AYADI

The longest transport strike in France lasted for 28 days, also over Christmas, in 1986 and early 1987. Calls by Macron and others for a holiday truce have gone unheeded.

"It's a strong movement and still supported by public opinion," said Philippe Martinez, secretary general of the CGT union as he visited picketing workers at a bus depot.

Protests have been taking place during the nationwide strike against government pension reforms
Protests have been taking place during the nationwide strike against government pension reforms AFP / STEPHANE DE SAKUTIN

He lashed out at Prime Minister Edouard Philippe, who has said he wants no confrontation with the strikers, accusing him of not being true to his word.

"The government shows how agitated it is with this kind of conception of social dialogue," said Martinez.

The strike action has also hit petrol stations in some areas
The strike action has also hit petrol stations in some areas AFP / Christophe SIMON
How to visit Paris when there's a transport strike on
How to visit Paris when there's a transport strike on AFP / Romain ALLIMANT

Transport in Paris remained paralysed on Friday, a day the French capital would normally be crammed with shoppers seeking post-Christmas bargains or preparing for the New Year.

There appears to be no end in sight to the current walkouts with talks between the government and unions only set to resume on January 7 and major demonstrations planned two days later.

Philippe Martinez is pictured during a demonstration against pension reform on December 10
Philippe Martinez is pictured during a demonstration against pension reform on December 10 AFP / Bertrand GUAY

Just two driverless metro lines worked normally Friday and five lines were completely shut down. National rail operator SNCF said six out of every 10 high-speed TGV trains were running.

SNCF said in a statement that while 8.5 percent of its total employees were on strike, 38.8 percent of drivers were not working. It said just 35 percent of scheduled TGVs would be working on New Year's Day and 50 percent on January 2.

"I feel like the government is even more cornered than it was in 1995, so we are heading towards a deadlock with the government eventually winning the conflict, but with a lot of collateral damage," said Bernard, a pensioner, as he waited for a train at Montparnasse station in Paris.

Another passenger, Audrey, a saleswoman, said she was in favour of the strike. "They want their voices to be heard, and, unfortunately, there is no other way. Of course there are elections, but it's not enough."

New Year's Eve was also set to be affected with the driverless metro lines 1 and 14 the only ones working into the night, although more night buses were expected to run.

Buses have largely remained running, albeit with a much reduced service, but union activists blocked four Paris bus depots early Friday before being dispersed peacefully by Paris police, the local authorities said.

The unions are demanding the government drops a plan to merge 42 existing pension schemes into a single, points-based system.

The overhaul would see workers in certain sectors -- including the railways -- lose early-retirement benefits.

The government says the shake-up is needed make the system fairer.

Macron is due to give his traditional New Year address on December 31 and his words will be watched closely for any sign the government is prepared to water down the reform.