SlopeSouth Africa
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.
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.
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

Traffic rules
South Africa