By Lekshmy Sankar | 04-Feb-2018
When I began in the world of transportation technology, I heard about the concept of 3D Modeling. Truthfully, I didn’t really understand it but it sounded incredibility interesting. I was imagining a world of gigantic 3D machines and roads and bridges being built by themselves. Well, turns out, the reality is quite different. The knowledge that I’m not alone in my confusion is the genesis of this article - I thought I would write about the topic and hopefully help others learn more in the process.
In construction, we use 3D modeling software to virtually develop, test, and alter project designs. The modeling uses a collection of points, shapes, and information in 3D to mathematically represent a physical area or structure. 3D models may be created by hand or by scanning. Surfaces can be further defined with texture mapping.
By using 3D modeling software we are able to analytically represent any image for design and Automated Machine Guidance (AMG) construction. In the not too distant past, we used to use tools like Computer-Aided Design (CAD), which has been in the market for over three decades. In contrast to CAD, however, there are only a number of highly sophisticated 3D modeling software programs specifically designed for the engineering and transportation industry.
An example of AMG construction pertains to work like asphalt milling, which is the controlled removal of existing pavement. The process restores the original grade and smooths the area for asphalt resurfacing to take place. AMG uses data from sources such as 3D engineered models to provide real-time horizontal and vertical location information to the operator of construction equipment during earthwork and paving operations. Using AMG, the equipment adjusts automatically based on the 3D modeling information with operation override, as needed.
How great does that sound? This provides the ability to share 3D data in real time for engineers to simulate construction project scheduling to visually communicate and analyze project activities, thereby minimizing delays and sequencing issues. In construction, having the ability to combine 3D modeling, design-time visualization, design intent, information mobility, and construction-driven engineering would be a true game-changer. Just imagine the possibilities.
With 3D modeling capability, we are able to work with any field data, from photogrammetry and surveys, to GPS and point clouds. The software can upload, analyze, and manipulate field data while ensuring the integrity of the original data.
Sure – the dream of a world of gigantic 3D machines and roads and bridges being built by themselves is not here yet (and that also would be a game-changer). But we do have a pretty great first step with 3D modeling and we should embrace this technology and celebrate this great development.
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