D Series Hazard Markers – AS1743 Compliant Road Safety Signs

D Series Hazard Markers are an essential category of road safety signage used throughout Australia to clearly identify hazards, obstacles, and roadside infrastructure that may pose a risk to motorists.

Designed in accordance with Australian Standard AS1743 – Road Signs Specifications, D Series hazard markers provide high-visibility guidance to drivers, helping reduce collisions with fixed roadside objects and improving overall road safety.

These markers are commonly installed on:

• Traffic islands

• Bridge abutments

• Guardrails and barriers

• Roadside obstacles

• Culverts and drainage structures

• Median islands

• Kerb extensions

• Roundabouts

• Narrow bridges and road infrastructure

When installed correctly, hazard markers alert drivers to physical obstructions and guide them safely through potentially dangerous road environments.

At National Safety Signs, our D Series hazard markers are manufactured using premium reflective materials and durable substrates to withstand Australia’s harsh outdoor conditions while maintaining compliance with road authority specifications.

---

What Are D Series Hazard Markers?

The D Series classification refers to a group of directional hazard markers used to identify obstacles within or adjacent to the roadway.

These markers feature bold diagonal stripes or directional patterns, typically in black and yellow or red and white reflective materials, which clearly indicate:

• The presence of an obstacle

• The direction traffic should pass

• The edge of road infrastructure

Their reflective properties ensure maximum visibility during night driving, low-light conditions, and adverse weather, significantly improving driver awareness and reaction time.

---

AS1743 Compliance for Hazard Markers

Australian road signage must comply with AS1743 – Road Signs Specifications, which defines the design, colours, reflectivity, and dimensions of regulatory and hazard signage used across the road network.

Our D Series hazard markers are manufactured to meet AS1743 requirements, ensuring they are suitable for installation in:

• Road construction zones

• Public roads and highways

• Local council infrastructure

• Car parks and commercial developments

• Traffic management plans

Using compliant signage is essential for traffic management companies, civil contractors, councils, and infrastructure operators to maintain safe and legally compliant road environments.

---

Common Applications for Hazard Marker Signs

D Series hazard markers are widely used across civil construction, traffic management, and public infrastructure projects.

Typical applications include:

Road Infrastructure

Highlighting bridge piers, culverts, and roadside structures that sit close to traffic lanes.

Traffic Islands and Medians

Directing vehicles safely around central islands, kerb extensions, and pedestrian refuges.

Bridge and Narrow Road Warnings

Marking structural edges where vehicles must pass carefully.

Car Parks and Commercial Sites

Protecting structures such as columns, bollards, and barriers from vehicle impact.

Traffic Control Projects

Used within Traffic Management Plans (TMPs) to guide vehicles safely around obstacles.

Correct placement of hazard markers helps reduce vehicle strikes, prevent accidents, and improve traffic flow in complex road environments.

---

Built for Australian Conditions

National Safety Signs manufactures high-quality hazard marker signage designed for durability and visibility in Australian conditions.

Key features include:

• AS1743 compliant designs

• High-intensity reflective sheeting

• UV-resistant inks and materials

• Weather-resistant aluminium substrates

• Long service life in harsh outdoor environments

• Suitable for road authorities and traffic management use

Our signage is built to maintain reflectivity, visibility, and structural integrity even in high-exposure roadside environments.

---

Trusted by Civil Contractors and Traffic Professionals

National Safety Signs supplies compliant road signage to businesses across Australia, including:

• Traffic management companies

• Civil construction contractors

• Local councils

• Infrastructure operators

• Mining and industrial sites

• Facilities and property managers

With fast turnaround times, Australian-made products, and reliable nationwide delivery, we help organisations maintain safe, compliant road environments without delays.

---

Order AS1743 Compliant Hazard Markers Online

If your project requires reliable and compliant road hazard markers, National Safety Signs offers a comprehensive range of D Series signage ready for installation.

Our hazard markers are designed for maximum visibility, durability, and compliance, ensuring drivers receive clear guidance around roadside hazards.

Browse our full range of D Series Hazard Markers below or contact our team for assistance selecting the correct signage for your traffic management or infrastructure project.