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One-Way Roadway (Straight) Road Sign – R4.3

The One-Way Roadway (Straight) road sign, officially designated R4.3 in the South African Road Traffic Signs Manual (SARTSM), is a regulatory traffic sign used to indicate that vehicles using the designated roadway must proceed in the direction shown by the straight arrow.

The R4.3 sign provides drivers with clear information about the permitted direction of travel and can help prevent vehicles from travelling against the designated traffic flow. It is useful at one-way roads, access routes, parking facilities, junctions and other locations where the direction of travel needs to be clearly communicated.

What Does a One-Way Roadway (Straight) Sign Mean?

The R4.3 One-Way Roadway sign imposes a mandatory requirement on drivers using the designated roadway to proceed only in the direction indicated by the arrow.

The straight arrow indicates that traffic must proceed ahead along the one-way roadway. Drivers must also follow any additional road markings, traffic signals, lane arrows and regulatory signs that apply to the particular route.

Where Are R4.3 One-Way Roadway Signs Used?

One-way roadway signs can be used in a range of public and private traffic environments, including:

• One-way streets
• Urban roads
• Controlled road junctions
• Shopping centres
• Parking areas and parking garages
• Business parks
• Residential estates
• Industrial properties
• Warehouse and logistics facilities
• Private access roads
• Large commercial developments
• Temporary traffic routes

Why Are One-Way Roadway Signs Important?

A one-way traffic arrangement controls the direction in which vehicles use a particular roadway. Clear regulatory signage helps drivers understand the required direction before entering or continuing along the route.

The R4.3 sign is particularly useful where the road layout, buildings, parking areas, junctions or other physical features could make the intended direction of traffic unclear.

The R4.1, R4.2 and R4.3 One-Way Roadway signs impose a mandatory requirement to proceed only in the direction indicated by the relevant arrow.

R4.3 One-Way Roadway Signs at Junctions

R4.3 signs can be used at junctions and other access points where vehicles need to continue straight ahead along a one-way roadway.

The sign should be positioned so that drivers can identify the roadway to which the one-way instruction applies. Other traffic-control signs and road markings may also be required depending on the junction layout.

Drivers should pay attention to any additional signs controlling turning movements, pedestrian crossings, priority, speed or other traffic conditions at the junction.

One-Way Roadway Signs in Parking Areas

Parking facilities often use one-way routes to organise vehicle movement between entrances, parking bays and exits. An R4.3 One-Way Roadway (Straight) sign can indicate that vehicles must continue ahead along a designated one-way section.

Additional directional signs, lane arrows, parking signs and road markings may be used where the layout requires further guidance.

One-Way Roadway Signs on Private Property

R4.3 signs can also be considered for suitable private roads and internal traffic routes. Applications can include:

• Shopping centres
• Office parks
• Residential estates
• Factories
• Warehouses
• Hotels and resorts
• Hospitals and healthcare facilities
• Private parking facilities
• Commercial developments

For private-property installations, the sign should form part of an appropriate traffic-management arrangement that considers vehicle movement, pedestrian access, entrances, exits and emergency routes.

R4.3 and Other One-Way Roadway Signs

The R4 series contains different One-Way Roadway variants based on the direction indicated by the arrow.

• R4.1 – One-Way Roadway with a left-pointing arrow
• R4.2 – One-Way Roadway with a right-pointing arrow
• R4.3 – One-Way Roadway with a straight-pointing arrow

The appropriate variant should be selected according to the actual direction of permitted vehicle movement at the particular location.

One-Way Roadway Signs During Construction

Temporary one-way traffic arrangements may be introduced during construction, road maintenance, utility work, events or other activities that change normal vehicle movement.

Where traffic is temporarily directed into a single direction, suitable one-way and directional signage can help drivers understand the temporary route. Additional warning, diversion and traffic-control signs may also be required depending on the site.

For public-road work, temporary traffic arrangements should follow the applicable requirements of the responsible road or traffic authority.

Drivers and One-Way Roadways

Drivers using an R4.3-controlled roadway should follow the direction indicated by the sign and comply with all other applicable traffic signs, road markings and traffic signals.

A straight-pointing One-Way Roadway sign does not by itself provide information about every movement that may be possible at the next intersection. Additional signs or road markings may control turning, lane use, pedestrian crossings, priority or other movements.

Pedestrians and One-Way Roadways

Pedestrian movement can still occur alongside or across a one-way roadway. Drivers should remain alert for pedestrians and follow any pedestrian crossings, pedestrian-priority signs, road markings and other traffic-control measures provided at the location.

R4.3 and No Entry R3 Signs

The R4.3 One-Way Roadway sign and the R3 No Entry sign communicate different instructions.

R4.3 indicates the direction in which drivers must proceed on the designated one-way roadway. R3 prohibits vehicular entry from the direction where the No Entry sign is displayed.

Depending on the road layout, these signs may be used together with other traffic-control measures where additional information or restriction is required.

R4.3 Sign Placement and Visibility

The R4.3 sign should be positioned where approaching drivers can clearly see the direction instruction before they need to make a decision about their route.

The sign should remain visible and should not be unnecessarily obstructed by trees, buildings, parked vehicles, advertising structures or other objects.

Its position should also be considered together with road markings, lane configuration, intersections and other traffic-control signs.

One-Way Roadway Signs in South Africa

The R4.3 One-Way Roadway (Straight) sign forms part of the South African regulatory traffic-sign system. The R4 series uses different arrow directions to communicate the permitted direction of travel.

For public roads, the appropriate sign specification, positioning and installation requirements should be confirmed with the responsible road or traffic authority. Private-property owners and managers should consider the site's traffic-management requirements when introducing one-way traffic routes.

One-Way Roadway (Straight) Sign FAQs

What does an R4.3 sign mean?

R4.3 is the One-Way Roadway sign with a straight-pointing arrow. It indicates that vehicles using the designated roadway must proceed in the direction shown by the arrow.

What is the South African road-sign code for One-Way Roadway (Straight)?

The official code is R4.3.

What is the difference between R4.1, R4.2 and R4.3?

R4.1 uses a left-pointing arrow, R4.2 uses a right-pointing arrow and R4.3 uses a straight-pointing arrow. Each sign communicates the applicable direction of one-way travel.

Does an R4.3 sign mean the road has multiple lanes?

No. The sign communicates the direction of travel and does not by itself specify the number of lanes on the roadway.

Can R4.3 signs be used in parking areas?

Yes. They can be used in suitable parking areas, parking garages and private developments to organise vehicle movement along designated one-way routes.

Can R4.3 signs be used on private property?

Yes. One-way roadway signs can be used on suitable internal roads and access routes at shopping centres, office parks, residential estates, industrial properties and other developments.

Does an R4.3 sign mean drivers cannot turn at the next intersection?

Not necessarily. The sign communicates the direction of the one-way roadway. Other signs and road markings may control turning movements at intersections and access points.

Can an R4.3 sign be used temporarily?

Yes. Appropriate one-way signage can form part of a temporary traffic-management arrangement during construction, maintenance, events or other changes to normal vehicle access.

Does Signs4SA supply R4.3 One-Way Roadway signs?

Signs4SA can assist with one-way, directional and other traffic-control signs for commercial, industrial, residential, parking and private-property applications. Contact us with your required specification, size and installation requirements for a quotation.

Request a Quote for R4.3 One-Way Roadway Signs

The R4.3 One-Way Roadway (Straight) sign provides drivers with a clear regulatory instruction about the permitted direction of travel. It can be used at suitable one-way roads, junctions, parking facilities, commercial developments and private access routes.

Correct sign selection, positioning and visibility are important so that drivers can understand the required direction before entering or continuing along the one-way roadway.

Contact Signs4SA to discuss your R4.3 One-Way Roadway (Straight) sign requirements, provide your specifications and request a quotation.

One-way roadway (straight) 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 One-way roadway (straight) 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. One-way roadway (straight) 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 One-way roadway (straight)

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 One-way roadway (straight) sign, which is designed to alert people to potential dangers in a particular area. One-way roadway (straight) 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 One-way roadway (straight) 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. One-way roadway (straight) 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.

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