Minimum speedSouth Africa
Traffic rules
South Africa
1. Minimum speed
A minimum speed is the lowest speed that vehicles are required to maintain on a particular road or under specified conditions. Minimum-speed rules are intended to prevent vehicles travelling unnecessarily slowly from disrupting traffic or creating large speed differences between road users.
A minimum speed does not require drivers to maintain that speed when traffic, weather, visibility, road conditions or safety require them to slow down. The way minimum speeds are indicated and enforced varies between countries.
How is a minimum speed indicated in South Africa?
Regulatory sign R101, a blue circular sign with white numerals, requires vehicles to maintain or exceed the displayed speed in km/h. Its temporary counterpart is TR101.
🔗 transport.gov.za • South Africa, Department of Transport, SARTSM — minimum-speed
Start of a minimum speed.
English • R101 • Minimum speed: 50 km/h. Vehicles must travel at least 50 kilometres per hour on the indicated road or portion of road, subject to safety and prevailing traffic conditions.
Sources
🔗 Commons.wikimedia.org
🔗 Transport.gov.za • Department of Transport · SADC RTSM Vol. 1, chapter 2, PDF p. 46 (May 2012)
SVG source: Southern African Development Community • Public domain • Original revision 2017-06-24. Wikimedia original unmodified.
Can a South African minimum-speed restriction apply to a particular lane?
Yes. The manual allows a minimum-speed symbol within a guidance sign to identify a route or lane subject to the restriction, while other lanes are not. Read both minimum- and maximum-speed signs.
🔗 transport.gov.za • South Africa, Department of Transport, SARTSM — minimum-speed
