European route E27

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Much of the route has not currently been upgraded to autoroute quality. However, major improvements in recent years have occurred in the region of the Franco-Swiss frontier and on the continuation to Delemont, with further extension of the motorway section south of Delemont ongoing. Progress is slow because of the mountainous terrain.

Apart from the Swiss capital, Bern, the towns and cities linked by the E27 tend to be medium sized or smaller. Much of route is dominated by mountainous landscapes, with a correspondingly high profile tourist trade: mountain valley agriculture or viticulture are also in evidence where the topography permits. Several sections of the E27 are more than averagely occupied by tunnels and viaducts. One of the most spectacular views for a southbound driver in good weather occurs a few kilometers before the route reaches Vevay and the Lake of Geneva. Before the lake itself comes into view, the tops of the mountains behind the opposite shore appear on the horizon: the panorama is particularly impressive in early summer when there is still an abundance of snow on the higher slopes and peaks.