Abstract
Integrated 3D modeling adaptation to infrastructure has been slow due to technical challenges, such as the lack of interoperability between software. To fill this gap, a versatile model with 3D modeling capabilities was developed to assist in designing sustainable bridges at the conceptual design stage. The model incorporates a rule-based expert system and four modules, namely, 3D CAD modeling, bridge sustainability rating system (BrSRS), bridge environmental performance strategy mapping (BrEPSM), and conceptual cost estimation. The 3D CAD module was developed using the Graphics.DrawLine method. The BrSRS and BrEPSM modules were developed by amalgamation of the identified pertinent sustainable and footprint indicators. The model aims to provide bridge type recommendations, allow customization of a sustainable bridge, illustrate forecasted footprint levels, present the conceptual design in AutoCAD’s 3-dimensional (3D) mode, facilitate a recalculation process when the bridge’s dimensions are altered, and generate a conceptual cost estimate.
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