ScienceMaastricht's new highway tunnelTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceRuben Kalus12/22/2016December 22, 2016For years, the Dutch city of Maastricht had struggled with traffic jams. No longer. The Kaiser-Willem-Alexander tunnel is unique in Europe.https://p.dw.com/p/2UgocAdvertisement