The Guardian - Aslef drivers at Southeastern, Southern/Gatwick Express, Great Northern, Thameslink and South Western stop work. Most commuter trains in south-east England will not run on Tuesday, in the first in a series of rolling 24-hour strikes by drivers that will bring more disruption to Britain's rail network this week. Drivers in the Aslef union are on strike at Southeastern, Southern/Gatwick Express, Great Northern, Thameslink and South Western Railway on Tuesday, as part of a long-running dispute over pay.