Road markings are a critical component of modern transportation infrastructure. These pavement markings, applied using specialized road marking machines, serve to guide, warn, and regulate the movement of vehicles and pedestrians, thereby ensuring order and significantly enhancing road safety. Based on their function and design, road markings can be categorized into several types. The most common types found on highways and urban roads include the following three:
1. Center Lines
Center lines are fundamental road markings that divide the roadway into two distinct directions of travel. They play a critical role in preventing head-on collisions and organizing traffic flow. Center lines can be solid or dashed.
- Color: Typically white or yellow. Yellow center lines usually indicate no-passing zones or separate opposing traffic flows.
- Application: On single-lane roads, solid lines are usually used as center lines to prohibit vehicles from entering the opposite lane. On multi-lane roads, dashed lines indicate where overtaking or lane changes are permitted under safe conditions. These markings require precise road marking equipment to ensure consistent spacing and dashed line lengths, maximizing driver visibility.

2. Edge Lines
Edge lines are road safety markings along both sides of the road, defining its outer boundaries. They provide a visual boundary, particularly crucial at night or in adverse weather conditions.
- Color: Typically white. In some regions, solid yellow edge lines may mark the left boundary of divided highways or one-way streets.
- Function: Edge lines alert drivers to the road’s edge, helping prevent run-off-road accidents. Edge lines may be solid (indicating a clear, non-crossable boundary) or dashed. Modern thermoplastic marking materials are frequently used for edge lines due to their superior reflectivity, weather resistance, and resistance to tire abrasion.
3. Lane Lines (Lane Divider)
Lane lines are white dashed lines used to separate lanes of traffic moving in the same direction. They form the foundation for managing multi-lane traffic flow.
- Purpose: These highway markings delineate individual lanes, promote orderly passage, and ensure safe lane changes. Drivers may cross these dashed lines only after confirming safety.
- Technical Standards: Marking dimensions are standardized to ensure clarity and consistency. For high-speed roads like highways and urban expressways, common marking intervals are 600 cm with 900 cm center gaps. For other roads, the standard marking spacing is 200 cm with 400 cm intervals between lines. Efficient application of these precise standards is a key function of automated road line marking machines, ensuring uniformity and speed in large-scale projects.
The Importance of Professional Construction and Maintenance
These three common traffic control markings are essential for a safe and efficient transportation network. Drivers must always adhere to these markings. For road authorities and construction teams, regular inspection, maintenance, and repainting of faded markings are equally vital.
The clarity, durability, and retroreflectivity of road markings depend heavily on material quality (e.g., thermoplastic materials or high-performance coatings) and the precision of application equipment. Professional road marking solutions play a critical role in this regard.

Enhancing Road Safety with Advanced Marking Solutions
The effectiveness of any road marking system hinges on its underlying technology. Modern road marking equipment spans a wide spectrum, from hand-pushed units for precision work to fully automated vehicle-mounted systems for large-scale highway projects. These tools ensure precise application of thermoplastic hot-melt markings, cold-applied coatings, or pre-formed tapes, resulting in highly durable, reflective, and fade-resistant lines.
Additionally, innovative road safety solutions now incorporate raised pavement markings (tactile feedback speed bumps), anti-skid coatings, and even smart markings embedded with future intelligent transportation system technology.
Huayuan’s Expertise in Road Marking
With over 20 years of experience in road marking equipment and integrated solutions, Huayuan has consistently been a leading global provider of specialized road marking equipment and comprehensive solutions. We have successfully delivered over 1,500 projects worldwide, possessing the expertise to meet the most demanding and customized road engineering requirements.
We are committed to helping clients overcome challenges in selecting road marking machine, specifying materials, and executing projects. We pledge to provide the technology and knowledge needed to build safer, smarter, and more reliable road networks for communities around the globe.
Visit our website to explore our full range of road marking machine and professional engineering support services.
