A Road Controlling Authority with control of 4000 sets of traffic lights required a spatial tool which would enable analysis and monitoring of traffic signal operation. The only records they held of the signal designs were PDFs of the as-built diagrams and the details contained within the SCATS traffic signal system. This meant that the spatial information relating to traffic flows was not available.
We utilised a combination of AutoCAD, FME software analysis and a custom built ESRI AGOL web application to interpret the shapes and locations of each detector loop for a sample set of 500 SCATS plans, mapping loop locations and linking these locations to the reporting function of the SCATS system.
The result was a high level of accuracy in automated mapping, reporting and validation/fixing that avoided an extremely time consuming and arduous task which could run into thousands of hours of work. The prototype system also gave confidence that the entire network could be processed in a much shorter time frame, using a custom-built web application to add efficiency to the process. This added the ability to process SCATS reports spatially to better inform decision making based on live and historic traffic flows and signal operation.