Highway designers add this dedicated right-hand lane on steep inclines to separate heavy trucks and buses from faster passenger traffic. Fully loaded commercial vehicles lose significant speed on grades, which creates bottlenecks and increases the risk of rear-end collisions. The lane typically ends shortly after the crest of the hill once heavy vehicles can regain highway speed.
Heard on the job
Stay in the climbing lane until we crest the summit so the four-wheelers can get around us.
Also heard as
- crawler lane
- truck lane