The project they are working on is aimed at untangling a notorious bottleneck at the junction of Interstates 287 and 87.

Much of the expressway is four lanes wide, though a two-lane portion of the expressway near Yongin has become a notorious bottleneck.

From the moment the railway arrived, this level crossing proved to be a notorious bottleneck.

Carrying the main road between Gloucester and south Wales, the bridge became a notorious bottleneck and was strengthened several times.

That section of the road, a notorious bottleneck, has one lane in each direction, a center turning lane and a roadside lined by small businesses, fast-food franchises and strip malls.

Bypassing the notorious bottlenecks of Ennis town and Clarecastle village, this section was completed in 2007 and significantly reduces travel times between Galway, Ennis, and Limerick.

For many years the swing bridge in Selby was a notorious local bottleneck but since the opening of the Selby bypass congestion in the town has been relieved.

In particular, the notorious bottleneck at Cooper Creek was raised three metres.

For a long time this was a notorious bottleneck, with the route clogged with tourists during the summer months.

It is a notorious bottleneck for traffic during rush hour, with the main A4 road meeting the A329 road from Wokingham.