SlopeSouth Africa

An introduction to the traffic rules and road signs of South Africa. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.

For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.


1. Slope

A slope is a section of road that rises or descends noticeably. A steep slope can affect vehicle speed, braking distance, traction, visibility and the ability of heavy or low-powered vehicles to maintain a steady speed.

Warning signs may indicate a steep ascent or dangerous descent and may show the gradient as a percentage. Drivers should adjust their speed early, select a suitable gear and remain prepared for slow vehicles, bends and changing road conditions.

What does a steep-slope warning mean in South Africa?

South African learner-driver guidance distinguishes warning signs for steep gradients from regulatory speed restrictions. A descent may require a suitable lower gear and a speed below the legal maximum.

🔗 transport.gov.za • South Africa, Department of Transport, SARTSM — slope

Warning for a steep ascent. Warning for a steep ascent.

English • W323 • Steep ascent. A steep uphill section is ahead. Expect slow heavy vehicles.

Sources

🔗 Commons.wikimedia.org
🔗 Transport.gov.za • Department of Transport · SADC RTSM Vol. 1, chapter 3, PDF p. 5 (May 2012)

SVG source: Southern African Development Community • Public domain • Original revision 2018-08-23. Wikimedia original unmodified.

Warning for a steep descent. Warning for a steep descent.

English • W322 • Steep descent. A steep downhill section is ahead. Control your speed before descending.

Sources

🔗 Commons.wikimedia.org
🔗 Transport.gov.za • Department of Transport · SADC RTSM Vol. 1, chapter 3, PDF p. 5 (May 2012)

SVG source: Southern African Development Community • Public domain • Original revision 2018-08-23. Wikimedia original unmodified.

How should I approach a steep descent in South Africa?

Reduce speed before the descent and select a suitable gear to help control the vehicle. Keep enough following distance and avoid building up speed that requires continuous heavy braking. A warning gives no fixed safe descent speed: the gradient, surface, visibility, load and vehicle can require a speed well below the legal maximum.

🔗 transport.gov.za • South Africa, Department of Transport, SARTSM — slope

What should I check when meeting or overtaking on a slope in South Africa?

Do not overtake towards a hilltop without a clear view and enough safe space. Follow priority controls at narrow sections and allow for the size and braking needs of oncoming vehicles.

🔗 transport.gov.za • South Africa, Department of Transport, SARTSM — slope