SAMSUNG4D The cross-city Thameslink service runs on the Southern Region third rail network from Farringdon southwards and on overhead line northwards to Bedford, Cambridge and Peterborough. South of the changeover point, the WLL is third rail electrified, north of there, it is overhead. The entire route originally used third rail, but several technical electrical earthing problems, plus the fact that there are already overhead electric wires on part of the route for freight and Regional Eurostar services, led to the change.|{Winning|Profitable|Successful} {Tactics|Techniques|Ways} For Slot Babon