Traffic jams could be expedited through new lane changing GPS system 11/06/2013 - 00:00 Researchers in the Netherlands will next year test a GPS navigation system aimed at preventing the international curse of motorway traffic jams by telling drivers which lane to move to.Tests will be carried out as early as April on a 75-kilometre (around 50 mile) stretch of motorway passing through the Netherlands, from Germany to Belgium, which is popular with freight lorries.