How Do You Install Red Green LED Road Studs for Smart Crosswalks?

Smart crosswalks are increasingly using pavement-level LED signals to provide pedestrians with an additional visual indication at crossings. Red and green LED road studs can be installed directly into the pavement and connected to a traffic signal control system, allowing multiple studs to change color in sync with the crossing signal.

LS-68A is a wired red and green LED road stud designed for this type of application. It uses a DC 12V power supply and wired control, making it suitable for projects that require multiple road studs to operate together.

For a successful installation, it is important to plan more than just the position of the studs. Cable routing, power supply, pavement conditions, waterproofing, and system testing should all be considered before construction.

So, how should LS-68A wired LED road studs be installed? And how should the power supply be planned when multiple studs are used together?

What Are Red Green LED Road Studs?

Red and green LED road studs are embedded pavement lights that provide an additional visual signal in pedestrian crossing areas.

LS-68A uses wired power and control. The road studs can display red or green according to the connected control signal, and multiple units can be configured to operate together.

Unlike standalone solar road studs, wired road studs are connected to an external power and control system. This makes them particularly suitable for projects where synchronized operation is required.

How Do Red Green Road Studs Work With Traffic Signals?

The basic idea is simple: the road studs receive power and control signals through the cable connection and display the corresponding color.

For example, when the pedestrian crossing system sends the appropriate control signal, the road studs can display green. When the signal changes, they can switch to red according to the project control logic.

This does not replace conventional traffic lights. Instead, the pavement-level LED lights provide an additional visual indication directly within the crosswalk area.

This makes red and green LED road studs suitable for:

• Smart crosswalks
• Pedestrian crossing systems
• Traffic signal intersections
• School zones
• Urban road improvement projects
• Smart transportation projects

What Should You Consider Before Installation?

A clear installation plan can prevent many problems during construction.

Plan the Road Stud Layout and Cable Routing

Before drilling, determine the number and position of the road studs according to the crosswalk layout, road conditions, and pedestrian travel direction.

At the same time, plan the power and control cable routing. For installations with many road studs, it is also useful to determine the grouping and control zones in advance.

If cables need to pass through pavement areas, suitable protection should be considered according to the site conditions.

Plan the Power Supply for Multiple Road Studs

Power supply sizing should consider the number of road studs, actual current consumption, the number of units operating at the same time, and cable length.

For LS-68A, the reference average operating current is approximately 250 mA per unit, with a peak current of approximately 350 mA per unit.

For example, if a project uses 50 road studs with a 12V power supply and an average current of 250 mA per unit:

50 × 12V × 0.25A = 150W

With approximately 30% additional capacity:

50 × 12 × 0.25 × 1.3 ≈ 195W

This is a reference calculation for preliminary planning. The final power supply should be selected according to the actual project control method and wiring conditions.

Consider Voltage Drop on Long Cable Runs

For projects with long cable runs or a large number of connected road studs, voltage drop should also be considered.

Power supply location, cable length, cable specification, and grouping can all affect the voltage available at the end of the circuit.

Planning these factors in advance can help maintain stable operation and make cable management easier.

Check the Pavement Condition

LS-68A is installed into the pavement, so the installation base should provide sufficient support.

If the pavement or base is soft, appropriate treatment may be needed before installation. Fine aggregate or other suitable materials can be used where necessary according to the site conditions.

The installation holes should also be free from dust, debris, and standing water before the road studs are fixed.

Test Each Unit Before Installation

Before embedding the road studs, test each unit with the appropriate power supply and confirm that both red and green light outputs work properly.

This simple check can help identify faulty units before drilling and installation are completed.

How Do You Install Wired LED Road Studs?

The installation process can generally be summarized as:

Positioning → Drilling → Cleaning → Wiring → Epoxy Fixing → Testing → Curing

Position and Drill

Mark the road stud positions according to the project layout, then drill the installation holes according to the product dimensions and pavement conditions.

For a smart crosswalk, pay attention to the overall alignment and the light-emitting direction.

Clean and Connect the Wiring

After drilling, clean the holes thoroughly and remove dust, debris, and moisture.

Connect the power and control lines according to the electrical design. For LS-68A, make sure the positive and negative power connections and the red and green control lines are connected correctly.

For multiple road studs, follow the planned grouping and control configuration.

Cable joints and connection points should also be properly waterproofed, especially when the wiring is installed underground or inside the pavement.

Fix the Road Studs With Epoxy

After confirming the wiring, place each road stud into the installation hole and secure it with suitable road-grade epoxy resin.

For LS-68A, the recommended epoxy resin mixing ratio is 3:1 by weight, with approximately 50–80 g of fixing material per unit.

Adjust the road stud so that it is stable, properly aligned, and positioned at a suitable height relative to the surrounding pavement.

Allow Sufficient Curing Time

Depending on the epoxy material being used, initial curing may take around 2 hours, while full curing typically takes 6–8 hours. Actual curing time depends on the material and site conditions, including temperature and humidity.

The installation area should remain protected from traffic until the fixing material has reached the required curing condition.

How Should the Installed Road Studs Be Tested?

The pre-installation test and final system test serve different purposes.

Before installation, the main purpose is to confirm that each road stud can display red and green correctly. After installation, the entire system should be tested to make sure it operates according to the project requirements.

Check that:

• Red and green lights operate correctly
• Multiple road studs switch in sync
• Control signals are working correctly
• Road studs are securely fixed
• Installation height and alignment are appropriate
• Cable connections are secure
• Cable joints are properly waterproofed

If a road stud does not light up, shows the wrong color, or does not synchronize with the others, check the power supply, wiring, and control signal first.

Once the system operates normally, the installation area can be restored and opened for normal use.

Where Can LS-68A Be Used?

LS-68A red and green wired LED road studs are suitable for projects that require pavement-level light signals synchronized with a traffic control system.

Typical applications include:

• Smart crosswalks
• Pedestrian crossing systems
• Traffic signal intersections
• School zones
• Urban road improvement projects
• Smart transportation projects

For projects requiring multiple road studs, the quantity and layout can be determined according to the crosswalk design, control zones, power supply, and site conditions.

If a project has specific requirements for synchronization, power supply, wiring, or installation, the system configuration can be adjusted according to the actual site conditions.

Conclusion

Installing red and green LED road studs for a smart crosswalk requires more than simply embedding the lights into the pavement. Proper layout planning, cable routing, power supply sizing, voltage-drop considerations, waterproofing, and system testing all contribute to reliable operation.

LS-68A provides a wired DC 12V solution for red and green pavement-level signaling and can be used with traffic signal control systems for synchronized operation.

If you are planning a smart crosswalk, pedestrian crossing, or traffic signal synchronized road stud project, feel free to contact us. Share your project quantity, installation area, power supply, and control requirements, and we can help you determine a suitable configuration for your application.