 The CBT will ease local train traffic, mainly between the two major cities Locarno and Lugano but also between Bellinzona and Lugano.Travel time on the S-Bahn from Locarno to Lugano should drop from 50 to 22 minutes.The Ceneri Base Tunnel is a Swiss railway base tunnel under construction through Monte Ceneri between Camorino in the Magadino Flat and Vezia near Lugano.