What are the common types of road barriers?

There are several types of road barriers, including: Concrete Barriers: These are large, heavy barriers made of reinforced concrete that provide substantial protection and are commonly used on highways or construction sites. Water-Filled Barriers: These barriers are made of plastic or rubber and are filled with water to provide stability. They are often used in temporary situations or for short-term traffic control. Steel Barriers: Steel barriers are sturdy and durable, often used in high-security areas or where additional crash resistance is required. Plastic Barriers: Lightweight and easily portable, plastic barriers are commonly used for temporary traffic control or crowd management. They are available in various sizes and shapes. Expandable Barriers: These are collapsible or expandable barriers that can be easily set up and taken down. They are often used for quick and temporary traffic control or to cordon off areas temporarily.