Railnews -Train services have returned to normal after Network Railmp;#146;s major programme of engineering work over the Christmas and New Year break. However, more bad weather is likely to cause disruption again from tomorrow, as Storm Goretti arrives. Scotland is still dealing with the effects of heavy snow, and some trains on lines in the Highlands are cancelled today. The Met Office has issued snow warnings affecting much of England and Wales from 18.00 tomorrow until midday on Friday, with