Traffic jams were not so much caused by the restriction to two lanes as the steep approach to the tunnel.
It has a steep approach from the east and a gradual approach from the west.
Daniel rolled the Landcruiser down the steep approach to the ford, and into the brown waters.
This got the ball out onto the fairway, where a steep uphill approach shot remained.
The tunnel is level with short steep approaches.
The bridge was too narrow and its approaches too steep to be used by carts.
The runway had large rubber trees at either end, which necessitated a steep approach.
The path up to the summit passes a series of famous temples - it's a steep approach from the north side.
Minimum engine power will cause a steep approach to the aiming point.
Then there's a steep approach when we nose down at 30 degrees.