The Westerschelde Tunnel is 6.6 km long with 2 tubes, 14 kilometers of highway and a toll plaza, which consists of 7 lanes in each direction, 14 in total. For every direction there are manual lanes and automatic lanes where the means of payment are credit card, smart card and T-Tag (High speed electronic tolling). The T-Tag System has been supplied by EFKON. The system is highly reliable and unaffected by metallic windshields.