Dual-carriageway ends ahead
Dual-carriageway ends ahead - w117
Road Signs - w117
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Dual-carriageway ends ahead
Category:
Safety Sign Code:
- w117
Product Description
End of Dual Roadway (Straight On) Ahead – W117 Road Sign
The W117 End of Dual Roadway (Straight On) Ahead road sign is a warning sign used to alert drivers that the divided roadway is ending ahead and that the road they are travelling on will continue into a section carrying two-way traffic.
The sign gives drivers advance warning that the separation between opposing traffic directions is coming to an end. This allows road users to prepare for the change in road arrangement and become alert to the possibility of oncoming traffic ahead.
What Does the W117 Road Sign Mean?
W117 means End of Dual Roadway (Straight On) Ahead. It warns road users that two one-way roadways are approaching a point where they join and a roadway carrying traffic in both directions is about to be entered.
W117 is a warning sign. It does not itself impose a speed limit or require a driver to stop. Drivers must continue to comply with applicable speed limits, road markings, regulatory signs and other traffic-control instructions.
What Is an End of Dual Roadway?
A dual roadway is a divided road where traffic travelling in opposite directions uses separate one-way roadways, normally separated by a median island or another form of physical separation.
At the end of the dual roadway, the separation between opposing traffic movements comes to an end. Drivers then enter a roadway on which vehicles may travel in both directions.
This change is important because drivers who have been travelling on a one-way carriageway must be prepared for oncoming traffic after the divided section ends.
What Does “Straight On” Mean on W117?
The “Straight On” description identifies the particular road alignment represented by the W117 sign. The sign is used where the roadway being signed continues on the principal alignment of the approach roadway.
The correct sign should therefore be selected according to the actual road geometry rather than simply because a dual roadway is ending.
Where Are W117 Signs Used?
W117 signs may be used in advance of locations where a divided roadway ends and drivers are about to enter a two-way roadway.
Potential applications include:
- Dual-carriageway roads
- Highways and freeway approaches
- Divided urban roads
- Rural divided roads
- Roads transitioning from divided to undivided operation
- Road infrastructure projects
- Temporary traffic arrangements
- Roadwork areas involving temporary changes to the normal traffic layout
Why Is the W117 Warning Sign Important?
The end of a divided roadway represents a significant change in the way traffic moves. Drivers who have been travelling on a one-way roadway may soon encounter vehicles travelling towards them on the same roadway.
Advance warning gives drivers time to recognise the upcoming change and prepare for two-way traffic.
This can be particularly important where the transition occurs at higher operating speeds or where the end of the median is not immediately obvious to approaching road users.
W117 and Two-Way Traffic
The South African Road Traffic Signs Manual specifies that W116 and W117 End of Dual Roadway warning signs should be displayed together with the W212 Two-Way Traffic warning sign.
W117 warns about the end of the dual roadway arrangement, while W212 warns drivers that two-way traffic is about to commence. The two signs therefore provide complementary information about the approaching transition.
W117 Compared with W116
W116 and W117 are both used to warn of the End of Dual Roadway, but the correct version depends on the road alignment.
- W116: End of Dual Roadway for the applicable deviating alignment.
- W117: End of Dual Roadway (Straight On) Ahead.
The actual geometry of the road should be considered when selecting the correct sign.
How Should Drivers Respond to a W117 Sign?
Drivers approaching a W117 sign should remain alert to the change from divided-road operation to two-way traffic.
Drivers should:
- Remain aware of the changing road layout.
- Watch for oncoming vehicles.
- Observe the W212 Two-Way Traffic warning sign where provided.
- Follow lane markings and road markings.
- Comply with the applicable speed limit.
- Maintain their vehicle within the correct lane.
- Be prepared for changes in traffic conditions ahead.
W117 Sign Placement
The W117 sign should be positioned in advance of the point where the dual roadway ends so that approaching drivers have sufficient time to recognise the warning and prepare for the transition.
The South African Road Traffic Signs Manual specifies that W116 or W117 should be located in advance of the W212 Two-Way Traffic sign by a distance equal to V metres, where V represents the operating speed in kilometres per hour. This distance may be adjusted where the geometry of the road requires special treatment.
Where the median island permits, the manual recommends displaying the End of Dual Roadway warning signs on both sides of the roadway.
The signs should be clearly visible to approaching traffic and should not be obstructed by vegetation, buildings, advertising boards or other roadside objects.
W117 Sign Design and Colours
The permanent W117 warning sign uses a triangular warning-sign design with:
- Triangle: Red retroreflective
- Symbol: Black semi-matt
- Background: White retroreflective
A temporary version, TW117, is also specified. The temporary sign uses a red retroreflective triangle, black semi-matt symbol and yellow retroreflective background.
W117 During Roadworks
The temporary TW117 sign can be particularly useful during roadworks where the normal divided-road arrangement is temporarily changed.
For example, construction activities may require traffic to cross through a median opening or temporarily operate on a roadway with traffic travelling in both directions.
In these situations, W117 or TW117 should form part of the wider temporary traffic-management arrangement, together with other warning, regulatory and direction signs required for the work zone.
W117 Is Not a Road-Narrows Sign
W117 should not be used simply to indicate that an undivided roadway becomes narrower.
The South African Road Traffic Signs Manual specifically states that W116, W117, TW116 and TW117 should not be used to indicate a road-narrows situation on an undivided roadway. A warning sign appropriate to the actual road condition should be selected instead.
W117 Signs in South Africa
The W117 End of Dual Roadway (Straight On) Ahead sign forms part of the South African road traffic warning-sign system. Where used on a public road, the sign should be selected, manufactured and installed according to 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 system.
Who May Need W117 Signs?
W117 signage may be relevant to organisations involved in road construction, maintenance, infrastructure development and traffic management, including:
- Municipalities
- Road authorities
- Road construction contractors
- Traffic-management contractors
- Highway and freeway contractors
- Infrastructure developers
- Road maintenance teams
- Property developers
- Industrial developments
- Private road operators
Benefits of Clear End of Dual Roadway Warning Signs
- Warns drivers that the divided roadway is ending.
- Provides advance information about the change to two-way traffic.
- Draws attention to the possibility of oncoming vehicles.
- Gives drivers time to prepare for the new road arrangement.
- Can be used with W212 Two-Way Traffic warning signs.
- Can support temporary traffic management during roadworks.
Frequently Asked Questions About W117 Road Signs
What does W117 mean?
W117 means End of Dual Roadway (Straight On) Ahead. It warns drivers that a divided roadway is ending and that a roadway carrying two-way traffic is about to be entered.
Is W117 a warning sign?
Yes. W117 is an advance warning sign that alerts drivers to the end of the dual roadway arrangement.
Does W117 mean that I must stop?
No. W117 is a warning sign and does not itself require drivers to stop. Drivers must continue to follow all applicable regulatory signs, road markings and traffic-control instructions.
What sign is used with W117?
The South African Road Traffic Signs Manual specifies that W117 should be displayed together with the W212 Two-Way Traffic warning sign.
What is the difference between W116 and W117?
Both signs warn that a dual roadway is ending. W117 is specifically the End of Dual Roadway (Straight On) Ahead configuration.
Can W117 be used during roadworks?
Yes. TW117, the temporary version, may be particularly appropriate during roadworks where traffic is temporarily changed from a divided roadway arrangement to two-way operation.
Can W117 be used for a road narrowing?
No. W117 is intended for the end of a dual roadway. It should not be used simply to indicate that an undivided road becomes narrower.
Can Signs4SA supply W117 signs?
Yes. Signs4SA can assist with W117 End of Dual Roadway (Straight On) 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 W117 End of Dual Roadway Signs
Need W117 End of Dual Roadway (Straight On) Ahead signs for a road project, highway, freeway, roadworks site, residential development, commercial property or traffic-management application?
Contact Signs4SA to discuss your signage requirements, provide your specifications and request a quotation.
One important feature of Dual-carriageway ends ahead signs is their high visibility. These signs are designed to be easily seen by drivers, even from a distance and in adverse weather conditions. Many Dual-carriageway ends ahead signs are also designed with reflective materials that make them visible at night.
Another important feature of Dual-carriageway ends ahead signs is their durability. Road signs are exposed to a wide range of environmental factors, including wind, rain, and extreme temperatures. As such, they need to be made from materials that can withstand these conditions and remain in good condition for years to come.
More About Dual-carriageway ends ahead
End of Dual Roadway (Straight On) Ahead – W117 Road Sign
The W117 End of Dual Roadway (Straight On) Ahead road sign is a warning sign used to alert drivers that the divided roadway is ending ahead and that the road they are travelling on will continue into a section carrying two-way traffic.
The sign gives drivers advance warning that the separation between opposing traffic directions is coming to an end. This allows road users to prepare for the change in road arrangement and become alert to the possibility of oncoming traffic ahead.
What Does the W117 Road Sign Mean?
W117 means End of Dual Roadway (Straight On) Ahead. It warns road users that two one-way roadways are approaching a point where they join and a roadway carrying traffic in both directions is about to be entered.
W117 is a warning sign. It does not itself impose a speed limit or require a driver to stop. Drivers must continue to comply with applicable speed limits, road markings, regulatory signs and other traffic-control instructions.
What Is an End of Dual Roadway?
A dual roadway is a divided road where traffic travelling in opposite directions uses separate one-way roadways, normally separated by a median island or another form of physical separation.
At the end of the dual roadway, the separation between opposing traffic movements comes to an end. Drivers then enter a roadway on which vehicles may travel in both directions.
This change is important because drivers who have been travelling on a one-way carriageway must be prepared for oncoming traffic after the divided section ends.
What Does “Straight On” Mean on W117?
The “Straight On” description identifies the particular road alignment represented by the W117 sign. The sign is used where the roadway being signed continues on the principal alignment of the approach roadway.
The correct sign should therefore be selected according to the actual road geometry rather than simply because a dual roadway is ending.
Where Are W117 Signs Used?
W117 signs may be used in advance of locations where a divided roadway ends and drivers are about to enter a two-way roadway.
Potential applications include:
- Dual-carriageway roads
- Highways and freeway approaches
- Divided urban roads
- Rural divided roads
- Roads transitioning from divided to undivided operation
- Road infrastructure projects
- Temporary traffic arrangements
- Roadwork areas involving temporary changes to the normal traffic layout
Why Is the W117 Warning Sign Important?
The end of a divided roadway represents a significant change in the way traffic moves. Drivers who have been travelling on a one-way roadway may soon encounter vehicles travelling towards them on the same roadway.
Advance warning gives drivers time to recognise the upcoming change and prepare for two-way traffic.
This can be particularly important where the transition occurs at higher operating speeds or where the end of the median is not immediately obvious to approaching road users.
W117 and Two-Way Traffic
The South African Road Traffic Signs Manual specifies that W116 and W117 End of Dual Roadway warning signs should be displayed together with the W212 Two-Way Traffic warning sign.
W117 warns about the end of the dual roadway arrangement, while W212 warns drivers that two-way traffic is about to commence. The two signs therefore provide complementary information about the approaching transition.
W117 Compared with W116
W116 and W117 are both used to warn of the End of Dual Roadway, but the correct version depends on the road alignment.
- W116: End of Dual Roadway for the applicable deviating alignment.
- W117: End of Dual Roadway (Straight On) Ahead.
The actual geometry of the road should be considered when selecting the correct sign.
How Should Drivers Respond to a W117 Sign?
Drivers approaching a W117 sign should remain alert to the change from divided-road operation to two-way traffic.
Drivers should:
- Remain aware of the changing road layout.
- Watch for oncoming vehicles.
- Observe the W212 Two-Way Traffic warning sign where provided.
- Follow lane markings and road markings.
- Comply with the applicable speed limit.
- Maintain their vehicle within the correct lane.
- Be prepared for changes in traffic conditions ahead.
W117 Sign Placement
The W117 sign should be positioned in advance of the point where the dual roadway ends so that approaching drivers have sufficient time to recognise the warning and prepare for the transition.
The South African Road Traffic Signs Manual specifies that W116 or W117 should be located in advance of the W212 Two-Way Traffic sign by a distance equal to V metres, where V represents the operating speed in kilometres per hour. This distance may be adjusted where the geometry of the road requires special treatment.
Where the median island permits, the manual recommends displaying the End of Dual Roadway warning signs on both sides of the roadway.
The signs should be clearly visible to approaching traffic and should not be obstructed by vegetation, buildings, advertising boards or other roadside objects.
W117 Sign Design and Colours
The permanent W117 warning sign uses a triangular warning-sign design with:
- Triangle: Red retroreflective
- Symbol: Black semi-matt
- Background: White retroreflective
A temporary version, TW117, is also specified. The temporary sign uses a red retroreflective triangle, black semi-matt symbol and yellow retroreflective background.
W117 During Roadworks
The temporary TW117 sign can be particularly useful during roadworks where the normal divided-road arrangement is temporarily changed.
For example, construction activities may require traffic to cross through a median opening or temporarily operate on a roadway with traffic travelling in both directions.
In these situations, W117 or TW117 should form part of the wider temporary traffic-management arrangement, together with other warning, regulatory and direction signs required for the work zone.
W117 Is Not a Road-Narrows Sign
W117 should not be used simply to indicate that an undivided roadway becomes narrower.
The South African Road Traffic Signs Manual specifically states that W116, W117, TW116 and TW117 should not be used to indicate a road-narrows situation on an undivided roadway. A warning sign appropriate to the actual road condition should be selected instead.
W117 Signs in South Africa
The W117 End of Dual Roadway (Straight On) Ahead sign forms part of the South African road traffic warning-sign system. Where used on a public road, the sign should be selected, manufactured and installed according to 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 system.
Who May Need W117 Signs?
W117 signage may be relevant to organisations involved in road construction, maintenance, infrastructure development and traffic management, including:
- Municipalities
- Road authorities
- Road construction contractors
- Traffic-management contractors
- Highway and freeway contractors
- Infrastructure developers
- Road maintenance teams
- Property developers
- Industrial developments
- Private road operators
Benefits of Clear End of Dual Roadway Warning Signs
- Warns drivers that the divided roadway is ending.
- Provides advance information about the change to two-way traffic.
- Draws attention to the possibility of oncoming vehicles.
- Gives drivers time to prepare for the new road arrangement.
- Can be used with W212 Two-Way Traffic warning signs.
- Can support temporary traffic management during roadworks.
Frequently Asked Questions About W117 Road Signs
What does W117 mean?
W117 means End of Dual Roadway (Straight On) Ahead. It warns drivers that a divided roadway is ending and that a roadway carrying two-way traffic is about to be entered.
Is W117 a warning sign?
Yes. W117 is an advance warning sign that alerts drivers to the end of the dual roadway arrangement.
Does W117 mean that I must stop?
No. W117 is a warning sign and does not itself require drivers to stop. Drivers must continue to follow all applicable regulatory signs, road markings and traffic-control instructions.
What sign is used with W117?
The South African Road Traffic Signs Manual specifies that W117 should be displayed together with the W212 Two-Way Traffic warning sign.
What is the difference between W116 and W117?
Both signs warn that a dual roadway is ending. W117 is specifically the End of Dual Roadway (Straight On) Ahead configuration.
Can W117 be used during roadworks?
Yes. TW117, the temporary version, may be particularly appropriate during roadworks where traffic is temporarily changed from a divided roadway arrangement to two-way operation.
Can W117 be used for a road narrowing?
No. W117 is intended for the end of a dual roadway. It should not be used simply to indicate that an undivided road becomes narrower.
Can Signs4SA supply W117 signs?
Yes. Signs4SA can assist with W117 End of Dual Roadway (Straight On) 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 W117 End of Dual Roadway Signs
Need W117 End of Dual Roadway (Straight On) Ahead signs for a road project, highway, freeway, roadworks site, residential development, commercial property or traffic-management application?
Contact Signs4SA to discuss your signage requirements, provide your specifications and request a quotation.
One popular type of road sign is the Dual-carriageway ends ahead sign. This type of sign is used to provide drivers with important information about the road ahead, such as directions, speed limits, and potential hazards.
Dual-carriageway ends ahead_ signs come in a variety of shapes and sizes, and are made from a range of materials, including metal, plastic, and reflective materials. They can be customized to meet the specific needs of a particular roadway or location, including the addition of logos, graphics, and text.
One important feature of Dual-carriageway ends ahead signs is their high visibility. These signs are designed to be easily seen by drivers, even from a distance and in adverse weather conditions. Many Dual-carriageway ends ahead signs are also designed with reflective materials that make them visible at night.
Another important feature of Dual-carriageway ends ahead signs is their durability. Road signs are exposed to a wide range of environmental factors, including wind, rain, and extreme temperatures. As such, they need to be made from materials that can withstand these conditions and remain in good condition for years to come.
For businesses and organizations that need to create custom road signs, working with a reputable sign company can ensure that their signs are of high quality and meet all necessary standards and regulations. Signs4sa can provide expert advice on design, materials, and installation, and can help businesses ensure that their signs are installed safely and effectively.
Overall, Dual-carriageway ends ahead signs are an important tool for ensuring road safety and providing drivers with the information they need to navigate effectively. By working with a professional sign company to create and install these signs, businesses and organizations can help ensure that their messages are seen and understood by drivers, and help to improve safety on the road.