Norway faces a growing challenge with its aging bridge network. More than 4,000 older bridges need safety improvements, and authorities are testing new guardrail systems to determine if they can be installed directly on existing structures without compromising stability.
Researchers at the Norwegian University of Science and Technology (NTNU) are leading the crash tests in Trondheim. The experiments simulate real-world collisions to measure how well the new guardrails absorb impact forces. Engineers want to ensure that the barriers meet modern safety standards while avoiding additional stress on weakened bridge components.
The project focuses on bridges built before the 1980s, when design codes were less stringent. Many of these structures were not originally designed to support modern guardrail loads. By testing different materials and installation methods, the team aims to find solutions that balance safety and structural integrity.
Results will guide public road authorities in deciding whether to retrofit existing bridges or replace them entirely. The findings could also influence future bridge design standards across the country.
Transportation officials say the work is critical as Norway prepares to invest billions in infrastructure upgrades. The tests aim to prevent costly mistakes while ensuring public safety on roads that carry thousands of vehicles daily.
Source: tu.no