Thursday, 23 March 2017

Springfield and its Urban Environment

Post by: Katie Andrews

The area of Springfield proved an attractive site for the brewery due to its abundance of fresh water, largely undeveloped land, and location close to the canal and railway networks. With the growth required by the expanding brewery, the infrastructure and surrounding area developed to cope with the demand, and has changed throughout the years. Terraced houses, churches, and public houses were built to provide services and accommodation for the workers, and the Great Western Railway extended a railway siding into the site to provide even greater access.

Using Autodesk Infraworks 360, we have developed a site model showing the current site layout and have imported the updated Revit models. Infraworks 360 Model Builder takes site information from Google Earth and creates site features to work with. Once this was created, we needed to import the Revit models to show the buildings. The major problem we encountered was the imported locations of models were incorrect. Both Revit and Infraworks use imperial measurements as a standard, and even though the Revit models were metric, they would still import as imperial. Whilst we could amend this to show metric measurements, we would have to specify a latitude and longitude for each building, and even this was not correct due to the specified Infraworks base point not matching with a building edge. To rectify this, we opened up each individual model, and made sure that the Project Base Point and Survey Points are visible. Using the Location and Internet Mapping Service, we zoomed into the site, clicking onto the building location as accurately as possible, giving us longitude and latitude for the Project Address. From here we then moved the Survey Point, which is given a coordinate linked to the Project Base Point, to a specified corner of the building, as this location is what Infraworks uses to locate the model. Then we had to create a new 3D view for export, with the “navis” prefix as Infraworks does not recognise a 3D view without this. Before export, we made sure the Project Units were also set to metres.

Within Infraworks, we imported the models as Revit files, the status is set as Configured, but you cannot see the model. When we opened the configuration options, the latitude and longitude boxes were filled, and seemed to correlate with the correct site location. We found that by clicking “Close & Refresh”, this refreshed the information and placed the model in the specified Survey Point.  However this did not put the building in the correct rotation, so this needed to be manually rotated to match the correct locations. This obviously brings in inaccuracies into the model as the locations of the buildings are slightly off point. We are yet to find a solution to this problem, and have additional detail to develop onto the model, so hopefully through this we can discover a solution.

An additional problem we have encountered is the corruption of data due to file sizes. Infraworks 360 constantly uploads the data to the cloud as well as a local cached copy, but by using the Proposals feature, and creating one model of all the information, this seemed too much for the program to handle, and would create corrupt models. Due to time constraints and no clear solution to solving this problem, we decided it would be most efficient to create two models; one for present day, and one for the fully operational brewery.


Further development of the models will include links to photographs, interviews from previous workers, and animated walkthroughs of the site. Please click this link to the current model development.