Sydney commuters need to plan around major disruptions as the entire New South Wales (NSW) train network will shut down between 8 p.m. Monday and 4 a.m. Tuesday due to planned strikes. Transport NSW warned that train frequency would begin slowing significantly from 6 p.m., and some people could be left stranded. Some services for intercity and regional services will be suspended from 3:30 p.m. and will resume at 5:30 a.m. on Tuesday. Buses will replace trains on all lines during the eight hours of planned industrial action, but commuters are being encouraged to find alternative travel means or avoid unnecessary travel. NSW Transport warned there would be flow-on effects later in the week as it is the busiest week of the year with many services fully booked. As a result, customers may not be able to switch to a different day. The department also warned drivers to expect heavier …