Activists on the Glasgow Subway will go on a strike over the same weekend in three consecutive days, the city’s largest concert.
Unite took three days of action last week, but the latest wave would match with Trnsmt on Glasgow Green.
Union and subway operators for transport (SPT) are due to controversy between Startchlide Partnership for strikes in strike work.
The Sangh has claimed that the underground is badly understood, an allegation has been rejected by the SPT.
Unite said that more than 100 workers would go on strike on Friday 11 July, Saturday 12 July and Sunday 13 July.
Around 50,000 music fans will participate in TRNSMT – which is being held on each of the strike days half mile from St. Hanok Subway Station.
This year headlines include snow petrol, bifi cllios and 50 cents.
Union General Secretary Sharon Graham said: “The members of the Unite will no longer accept the situation of unbearable work.
“SPT has many years to solve the problem and failed to do so. Our members have said that it is enough.
“We will support them in their fight for better jobs, salary and conditions.”
The union has continuously banned overtime since June 13 and an interim proposal by the SPT was “heavily rejected” by its members.
BBC Scotland News has asked SPT to comment.
The operator earlier stated that it is “committed to take a resolution through positive ongoing dialogues”.
A social media post during the last week said that ticket holders affected by the strike will receive a day-a-u-go credit on their smartcard day.
Last month’s strike matches with three major gigs at Bellahoston Park, which often arrive through the metro station in the concerts.
Singer-songwriter sting made a headline in the park on Wednesday, while the rock band simple minds and sterophoneics went on stage on Friday and Saturday.
