Unbroken service Technolution's Winifred Roggekamp and Dave Marples describe efforts to upgrade the Westerscheldetunnel's tolling system to give free-flow capability. Until 2003 the Flanders region of Zeeland, in the south-west of the Netherlands, was connected to the mainland only by ferry. The new Westerscheldetunnel, a 6.6km toll tunnel, improves communications with the region considerably, taking some 100km off the alternative road journey. In 2006 it was recognised that the toll plaza for the tunnel ne