is it possible to take subway during midnight time on may day holiday？

Suzhou Rail Transit (SRT) will put all its lines (currently Line 1, 2, 3 and 4) into 24-hour operation on May 1. SRT Line 1, 2, 3 and 4 (main line) trains will run at an interval of about 11 minutes and 4 (branch line) at about 15 minutes on that day. The interval will be changed to 30 minutes starting 2am, May 2. 

Apart from SRT, Suzhou bus system will also arrange overnight routes on May 1 for the convenience of passengers to and from some SRT stations.