Bringing bim to Roundabout Design Saves Time and Money and Produces Better Designs



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Learning objectives



At the end of this class, you will be able to:


  • Explain how BIM methods can successfully be applied to roundabout design

  • Significantly reduce your roundabout design and analysis time, enabling you to prototype and validate a design in under an hour

  • Perform more "what-if" design scenarios within your allotted budget and thereby produce more considered designs

  • Have some understanding of how the geometry directly affects vehicle capacity and the probability of accidents



About the speakers



Nigel Peters – Savoy Computing

Nigel is a Director of Savoy Computing and Lead Programmer. He holds a degree in Computer Science and has over 30 years’ experience as a software engineer. For the past 25 years he has specialized in developing CAD based civil engineering software and in particular the modeling of vehicle movements and swept path analysis in both 2D and 3D. He was lead developer in the team that wrote Savoy's market leading program, AutoTrack®. Nigel has been an active registered Autodesk and Bentley developer for 20 years and is one of a handful of independent alpha testers that Autodesk use on each of the new releases of AutoCAD® and AutoCAD® Civil 3D®

Email: nigel.peters@savoycomputing.com

Mike Hutt – Savoy Computing

Mike is Head of Transportation Solutions at Savoy Computing with responsibility for worldwide sales. His role includes liaising with customers to understand their requirements and thereby ensuring the development team provides appropriate solutions. Prior to Savoy he was the Transport Research Laboratory's Software Business Manager for traffic analysis products, a Logistics and Freight Consultant, Construction Project Manager and Engineer. Mike sits on the TRB Roundabouts Committee, is a guest lecturer at a number of institutions in various countries and has been nominated as an Autodesk Industry Expert for the transportation industry. Mike is also a practiced trainer as well as engineer and has delivered roundabout design training to hundreds of designers in the US and Europe over the past 2 years.

Email: mike.hutt@savoycomputing.com

Jack Strongitharm - Autodesk

Autodesk Transportation Industry Solutions Manager.


I have been involved in the development of the civil engineering products and specifically the localization of AutoCAD Civil 3D for the UK and Ireland. Before joining Autodesk, I have worked as a design engineer for a number of consultants and local authorities where his work spanned designing landscaped surfaces to major road design schemes working with AutoCAD and other civil engineering design products. I am also known for the blog site I contribute to www.autodesk.com/fromthegroundup and also Civil YouTube channel www.youtube.com/civilfromthegroundup.

Email: jack.strongitharm@autodesk.com


How BIM is changing the roundabout design process

Roundabout design involves the balancing of three main factors; efficiency/ functional requirements, safety and cost. These factors are interlinked. Simply scaling up a design to handle a larger capacity is likely to lead to higher vehicle speeds and a greater risk of accidents. We need to consider ways to add capacity and reduce delay whilst controlling vehicle speeds and safety risk.



Achieving an acceptable balance between these basic factors requires a multitude of influences to be considered; vehicle speeds, vehicle paths, sightlines, surface geometry, site constraints, human factors such as signage, curbs and striping along with much, much more. These requirements can be met in various ways, each of which has potential impact on the others.


The typical current workflow


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