What are the latest innovations and trends in pavement marking materials and technologies?

1 Thermoplastic Markings

One of the most common types of pavement markings is thermoplastic, which is a mixture of synthetic resin, glass beads, pigments, and filler materials that is heated and applied to the pavement surface. Thermoplastic markings have several advantages, such as high reflectivity, durability, skid resistance, and ease of application. However, they also have some drawbacks, such as susceptibility to cracking, deformation, and discoloration under high temperatures, UV exposure, and traffic loads. To overcome these limitations, some highway designers are experimenting with modified thermoplastic formulations that can improve their elasticity, stability, and color retention.

2 Waterborne Paints

Another popular type of pavement markings is waterborne paint, which is a low-VOC (volatile organic compound) alternative to solvent-based paints that are more harmful to the environment and human health. Waterborne paints are composed of water, acrylic resin, pigments, and additives that can enhance their adhesion, drying, and durability. Waterborne paints are easy to apply, cost-effective, and environmentally friendly, but they also have some challenges, such as low reflectivity, poor resistance to abrasion and chemicals, and slow curing time. To improve the quality and performance of waterborne paints, some highway designers are adding reflective elements, such as glass beads, microcrystalline ceramic beads, or retroreflective tapes, to increase their visibility and longevity.

3 Preformed Tapes

Preformed tapes are another type of pavement markings that are made of flexible polymer films that are pre-cut and pre-coated with adhesive and reflective materials. Preformed tapes are applied to the pavement surface by removing the protective liner and pressing them firmly. Preformed tapes have several benefits, such as high reflectivity, durability, skid resistance, and versatility. They can be used for various types of markings, such as lane lines, arrows, symbols, and legends. They can also be customized to different shapes, sizes, colors, and patterns. However, they also have some disadvantages, such as high initial cost, difficulty in removal, and vulnerability to peeling and delamination.

4 Intelligent Markings

Intelligent markings are a new trend in pavement marking technologies that aim to provide more information and interaction to drivers and vehicles. Intelligent markings are embedded with sensors, LEDs, solar panels, or wireless communication devices that can detect and respond to various conditions, such as traffic flow, weather, speed, or lane changes. Intelligent markings can also communicate with other smart infrastructure elements, such as traffic signals, signs, cameras, or vehicles. Intelligent markings can enhance the safety and efficiency of highway design and management by providing real-time feedback, warnings, guidance, or navigation to drivers and vehicles.

5 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?