Fresh Tube strikes are set to hit London next week as RMT union drivers continue a row with TfL over plans for a new four-day working week. The union says the proposed changes could lead to longer shifts, increased fatigue and safety concerns for drivers. Walkouts are planned across four days from 19 to 22 May, with major disruption expected on several lines. TfL insists the new working arrangements would be voluntary and says the changes are designed to improve work-life balance for staff. #tube #londonunderground #strikes