The Guardian - Avanti says it is assessing how much impact strikes will have but spokesperson says disruption will be mp;#145;significantmp;#146;Workers on Avanti West Coast will go on strike on New Yearmp;#146;s Eve after rejecting a deal designed to resolve an ongoing dispute over rest day working. The dispute is over enhanced pay for rest day working, including voluntary overtime to cover staff absences such as those caused by vacancies, sickness, annual leave and training. The Rail, Maritime and Transport union (RMT) said its members working as train managers would strike on New Yearmp;#146;s Eve, 2 Januar...