Objectives: This study was conducted to achieve optimized power duct sizes with ensuring sufficient bending for the electrical cables at the road junction locations. Methods: Used Revit tool, a Building Information Modelling (BIM) technology to integrate the design data of electrical cables and for modelling the power duct structure. Tools in the Revit software were used to automate the cable bending and clash detection simulations tasks. Findings: With the help of these tools, we modeled cable routing and optimized power duct structure sizes, saving 90% of man-hours and achieving 20% cost savings at the site compared to conventional methods. Novelty: It’s a pioneering effort to integrate the design data of electrical cables and automate the cable routing by ensuring the sufficient bending radius by utilizing the tools in the Revit software. And optimization of the power duct size at the cable transition locations by performing multiple simulations of the model and clash detection. Keywords: BIM, Revit, Virtual Design, Cable Routing, Electrical Design