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Steep ascend and steep descend

Warning

Steep ascend and steep descend

TW322

Where
On any road but especially in mountainous areas.
Purpose
To warn that the road will climb or descend steeply.
Action
Be aware of slow-moving traffic, particularly in mountainous areas with sharp curves. Allow for a longer stopping distance on a descent and especially when your vehicle is heavily laden. Version 1.00 28 Jun 2012 Copyright © 2012 by SA Department of Transport

Manual on Road Traffic Signs, page 29.