A freight train transporting limestone powder derailed near the town of Marianske Lazne, in the Czech Republic. Guernsey, Sask., was evacuated Thursday morning after a Canadian Pacific Railway train derailed. We’ll have to wait for the accident reports to see if there are any common factors in the Walthamstow and Eastleigh incidents. According to Network Rail, it damaged signalling equipment which meant passenger services were disrupted. One freight train derailment wrecking track and disrupting train services for weeks is bad enough, but two may be more than just an unfortunate coincidence.