Abstract
<p> The aging infrastructure in Germany coupled with limited natural und financial resources has led to the development of a wide range of sustainable strategies and concepts. It wasn’t until 2011 that a code for the recalculation of highway bridges, the so called “Nachrechnungsrichtlinie”, was introduced. It defines the steps and regulates the procedures to be carried out for existing structures. In this way, a standardization of the sustainability process for highway bridges has been achieved. It facilitates the comparison of different infrastructure projects and improves the cost-efficiency aspects. This procedure is compulsory for every existing highway bridge in Germany.</p>
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