Which term refers to a reinforced concrete railing system used to contain and guide vehicles on high-traffic bridges?

• A. Concrete Bridge Railing
• B. Concrete Barrier Railings
• C. Concrete Parapets
• D. Precast Concrete Railings

Answer: (B)

At the heart of this question is the function of a railing system: it must act as a crash barrier that contains and redirects vehicles, especially on busy bridges. A reinforced concrete barrier railing is designed to stop or redirect an impact and keep a vehicle from crossing the edge, while also guiding it back toward the roadway. That explicit barrier role is why the term Concrete Barrier Railings is the best fit for high-traffic bridges.

Other terms focus more on form or manufacturing than on function. Concrete Parapets are typical edge walls that may provide fall protection but aren’t primarily designed as high-energy crash barriers. Concrete Bridge Railing is a general descriptor and could refer to rails that don’t necessarily meet the specific barrier/redirective performance needed for vehicle containment. Precast Concrete Railings emphasizes how the railing is made rather than its purpose as a crash barrier.