A road stud, also known as a raised pavement marker or RPM, is a device used to improve visibility and safety on roads, highways, and other transportation infrastructure. Road studs are typically installed along the centerline or edge of the roadway and provide a raised surface that helps guide drivers and alert them to potential hazards or changes in road conditions.

Road studs come in various types, including reflective, non-reflective, and solar-powered. The most common type of road stud is the reflective road stud, road stud which has a reflective surface that reflects light from vehicles’ headlights back to the driver, making it easier to see the road ahead.

There are several benefits to using road studs, including:

Increased visibility: Road studs make it easier for drivers to see the road ahead, particularly in low-light conditions or when visibility is poor.

Improved safety: By improving visibility and providing guidance to drivers, road studs can help reduce the risk of accidents and improve overall safety on the road.

Durability: Road studs are designed to withstand heavy traffic, extreme weather conditions, and other harsh conditions, making them a durable and long-lasting solution.

Easy installation: Road studs can be installed quickly and easily, making them a cost-effective solution for improving road safety.

Road studs are widely used around the world and are an important component of transportation infrastructure. They are particularly useful on highways, rural roads, and other areas where visibility is poor or where there is a high risk of accidents.

The regulations for using road studs on highways vary depending on the country and jurisdiction. However, there are some common guidelines and standards that are followed in many countries.

Here are some examples:

Color: The color of road studs is typically regulated to ensure consistency and to provide clear identification of different types of markers. In most countries, white studs are used to mark the centerline of the road, while yellow or amber studs may be used to mark the edge of the road or to indicate changes in road conditions.

Placement: The placement of road studs is typically regulated to ensure consistency and to provide clear guidance to drivers. In general, road studs are placed along the centerline or edge of the road, and the spacing is determined based on the speed and volume of traffic.

Reflectivity: The reflectivity of road studs is typically regulated to ensure that they are visible at night and in low-light conditions. In most countries, road studs must meet specific reflectivity standards to be approved for use on highways.

Maintenance: The maintenance of road studs is typically regulated to ensure that they remain visible and effective over time. In most countries, road studs must be inspected and maintained regularly to ensure that they are clean, visible, and in good condition.

It’s important to note that the specific regulations for using road studs on highways may vary depending on the country and jurisdiction. It’s important to consult with local authorities and to follow all applicable regulations and standards to ensure maximum effectiveness and safety.