Additional Info

Combined Curves (Right-Left) Ahead – W210 Road Sign

The W210 Combined Curves (Right-Left) Ahead road sign is a warning sign used to alert drivers that two sharp curves in opposite directions are approaching. The first curve is to the right, followed by a curve to the left.

The sign provides advance warning of a changing road alignment where drivers may need to adjust their speed and direction more than once within a relatively short section of road.

What Does the W210 Road Sign Mean?

W210 means Combined Curves. It warns drivers that a combination of two sharp curves in opposite directions is ahead, with the first curve to the right and the second curve to the left.

W210 is a warning sign and does not itself impose a particular speed limit. Drivers must comply with the applicable speed limit and adjust their speed to the road, traffic, visibility and curve conditions.

What Are Combined Curves?

Combined curves are two sharp curves that occur in opposite directions within a relatively short section of road.

For W210, the road first curves to the right and then changes direction to the left. This type of road layout can require drivers to make repeated steering and speed adjustments.

When Is W210 Used?

The South African Road Traffic Signs Manual states that W210 and W211 are used to warn road users of a combination of two sharp curves in opposite directions.

The signs should be displayed where:

• The speed needs to be reduced by more than one-third of the operating speed of traffic travelling on the preceding straight.
• The straight section between the two curves is less than 120 metres.
• The nature of the reverse curves is not obvious to approaching traffic and therefore presents a hazard.

These conditions help distinguish combined-curve warnings from ordinary curve warning signs.

Where Are W210 Signs Used?

W210 signs may be used on approaches to sections containing two sharp curves in opposite directions where advance warning is required.

Potential applications include:

• Urban roads
• Suburban roads
• Rural roads
• Mountain and hilly roads
• Highways and regional roads
• Residential roads
• Commercial developments
• Industrial areas
• Roads with restricted forward visibility
• Temporary roadworks detours

Why Is a Combined Curves Warning Sign Important?

Two sharp curves in opposite directions can require drivers to change direction twice over a short distance. If the second curve is not immediately obvious after the first, drivers may need additional warning to prepare for the changing road alignment.

W210 provides advance information about the sequence of curves so drivers can approach the section with greater awareness and adjust their driving to the conditions.

How Should Drivers Respond to a W210 Sign?

Drivers approaching a W210 sign should prepare for the two sharp curves ahead and remain alert throughout the combined-curve section.

Drivers should:

• Observe the posted speed limit.
• Adjust speed before entering the first curve where appropriate.
• Maintain control of the vehicle through both curves.
• Follow the lane alignment and road markings.
• Look beyond the first curve for the second change in direction.
• Remain alert to approaching and following vehicles.
• Watch for pedestrians, cyclists and other road users where applicable.

W210 Sign Placement

The W210 sign should be positioned in advance of the beginning of the combined-curve section so approaching drivers have sufficient time to recognise the warning and prepare for the road alignment ahead.

The South African Road Traffic Signs Manual states that the advance distance should depend on the average entering speed for the preceding straight and the safe speed determined for negotiating the curves. The applicable guidance in the manual should be used to establish the appropriate sign position.

Where appropriate, an advisory safe speed may be displayed on a supplementary information plate below the warning sign.

The sign should be clearly visible to approaching traffic and should not be obstructed by vegetation, buildings, advertising boards or other roadside objects.

W210 Sign Design and Colours

The permanent W210 warning sign follows the standard South African warning-sign colour arrangement:

• Triangle: Red retroreflective
• Symbol: Black semi-matt
• Background: White retroreflective

The symbol shows the combined curve arrangement, with the first curve to the right followed by a curve to the left.

Temporary W210 Sign

A temporary version, TW210, is specified for temporary road layouts.

The temporary sign uses a red retroreflective triangle, black semi-matt symbol and yellow retroreflective background. TW210 may be used under the applicable circumstances where combined curves occur within a temporary roadworks detour.

W210 and W211

W210 and W211 represent opposite combined-curve arrangements:

• W210: Combined Curves, first curve right then left.
• W211: Combined Curves, first curve left then right.

The correct sign should be selected according to the direction of the first curve in the sequence.

W210 Compared with W208 and W209

W210 and W211 should not be confused with W208 and W209.

W208 and W209 warn about a series of reverse curves in a winding section of road, while W210 and W211 are specifically used for a combination of two sharp curves in opposite directions.

The appropriate sign should therefore be selected according to the actual road geometry and the conditions experienced by approaching drivers.

W210 Compared with Sharp Curve and Hairpin Bend Signs

W210 is used for a combination of two sharp curves in opposite directions. Where an individual curve is substantially more severe, the appropriate Sharp Curve or Hairpin Bend warning sign may be required instead.

W204 and W205 cover sharp curves, while W206 and W207 cover hairpin bends. The correct sign depends on the actual geometry and the required speed reduction.

W210 and Advisory Safe Speed

W210 warns about the combined curves but does not itself impose a regulatory speed limit.

Where appropriate, an advisory safe speed may be displayed on a supplementary information plate below the warning sign. This advisory information should not be confused with a legally applicable speed limit.

W210 During Roadworks

The temporary TW210 sign may be used where two sharp curves in opposite directions form part of a temporary roadworks detour.

Temporary warning signage should form part of the wider traffic-management arrangement for the work zone, together with any other warning, regulatory and directional signs required by the temporary road layout.

W210 Sign Visibility and Materials

Outdoor W210 signs should be manufactured using materials suitable for the environmental conditions in which they will be installed.

For public-road applications, the sign's dimensions, design, mounting arrangement, colours and retroreflective characteristics should comply with the applicable South African road traffic sign requirements and the requirements of the responsible road authority.

Retroreflective materials can help improve the visibility of the warning sign when illuminated by vehicle headlights at night.

W210 Signs in South Africa

The W210 Combined Curves sign forms part of the South African road traffic warning-sign system.

Where W210 is used on a public road, its selection, application, placement and installation should follow the applicable South African road traffic sign standards and the requirements of the responsible road authority.

Similar warning signage may also be used on private roads, residential estates, commercial properties, industrial sites and other controlled areas where it forms part of an appropriate internal traffic-management arrangement.

Who May Need W210 Signs?

W210 signage may be relevant to organisations responsible for roads, infrastructure, traffic management and property development, including:

• Municipalities
• Road authorities
• Road construction contractors
• Traffic-management contractors
• Highway and regional-road contractors
• Property developers
• Residential estates
• Industrial facilities
• Commercial developments
• Road maintenance contractors

Benefits of Clear Combined Curve Warning Signs

• Warns drivers about two sharp curves in opposite directions.
• Indicates that the first curve is to the right.
• Provides advance information about changing road alignment.
• Gives drivers time to prepare before entering the curve sequence.
• Can be useful where the reverse curves are not immediately obvious.
• Supports clear road-user information and traffic management.

Frequently Asked Questions About W210 Road Signs

What does W210 mean?

W210 means Combined Curves. It warns drivers of two sharp curves in opposite directions, with the first curve to the right and the second to the left.

Is W210 a warning sign?

Yes. W210 is an advance warning sign for a combination of two sharp curves.

Does W210 impose a speed limit?

No. W210 is a warning sign. Drivers must comply with the applicable speed limit and adjust their speed to the road and traffic conditions.

What is the direction of the W210 curves?

The first curve is to the right and the second curve is to the left.

What is the difference between W210 and W211?

W210 represents a combined curve with the first curve to the right and then left. W211 represents the opposite arrangement, with the first curve to the left and then right.

When is W210 normally used?

It may be used where two sharp curves occur in opposite directions and where the speed reduction, short distance between curves or lack of visibility makes the warning necessary.

What is the difference between W210 and W208?

W208 warns about a winding series of reverse curves, while W210 specifically warns about two sharp curves in opposite directions.

Can an advisory speed be shown with W210?

Yes. Where appropriate, an advisory safe speed may be provided on a supplementary information plate below the warning sign.

Is there a temporary W210 sign?

Yes. TW210 is the temporary version and may be used where combined curves occur within an applicable temporary roadworks detour.

Can Signs4SA supply W210 signs?

Yes. Signs4SA can assist with W210 Combined Curves (Right-Left) Ahead signs and other warning, regulatory, traffic-management and road signage. Provide the required sign code, dimensions, quantity and installation requirements when requesting a quotation.

Order W210 Combined Curve Warning Signs

Need W210 Combined Curves (Right-Left) Ahead signs for a road project, highway, rural route, residential estate, commercial property, industrial site or traffic-management application?

Contact Signs4SA to discuss your signage requirements, provide your specifications and request a quotation.

Series of curves ahead signs come in a variety of styles and formats, including danger signs, warning signs, and caution signs. Danger signs are used to indicate an immediate threat that could cause serious injury or death, such as high voltage areas or hazardous materials. Warning signs are used to indicate potential hazards that could cause injury, such as slippery floors or falling objects. Caution signs are used to indicate potential hazards that could cause minor injury, such as low ceilings or uneven surfaces. Another type of safety sign is the Series of curves ahead sign, which is used to provide guidance on safe behavior. These signs can include instructions on how to use equipment or machinery safely, as well as reminders to wear personal protective equipment (PPE) or follow specific safety protocols. Series of curves ahead signs can also be used to ensure compliance with safety regulations. For example, fire safety signs are required by law in most public buildings and workplaces. These signs indicate the location of fire exits, fire extinguishers, and other fire safety equipment.

More About Series of curves ahead

Safety signs are an essential part of any workplace or public space. They are used to warn people of potential hazards, provide guidance on safe behavior, and ensure compliance with safety regulations. One type of safety sign is the Series of curves ahead sign, which is designed to alert people to potential dangers in a particular area. Series of curves ahead signs come in a variety of styles and formats, including danger signs, warning signs, and caution signs. Danger signs are used to indicate an immediate threat that could cause serious injury or death, such as high voltage areas or hazardous materials. Warning signs are used to indicate potential hazards that could cause injury, such as slippery floors or falling objects. Caution signs are used to indicate potential hazards that could cause minor injury, such as low ceilings or uneven surfaces. Another type of safety sign is the Series of curves ahead sign, which is used to provide guidance on safe behavior. These signs can include instructions on how to use equipment or machinery safely, as well as reminders to wear personal protective equipment (PPE) or follow specific safety protocols. Series of curves ahead signs can also be used to ensure compliance with safety regulations. For example, fire safety signs are required by law in most public buildings and workplaces. These signs indicate the location of fire exits, fire extinguishers, and other fire safety equipment. In addition to these types of safety signs, there are also specialized signs available for specific industries or hazards. For example, construction sites may use signs to indicate the location of underground utilities or to warn of falling debris. Healthcare facilities may use signs to remind employees to wash their hands or to indicate the location of first aid supplies. When selecting safety signs, it is important to choose signs that are appropriate for the specific hazard or situation. Signs should be placed in prominent locations where they are easily visible, and should be made from durable materials that can withstand harsh environmental conditions. By using safety signs effectively, businesses and organizations can help protect their employees, customers, and visitors from harm.

Customer Reviews