AIS data and fairway area data made visible
The goal of the project was to combine AIS data and fairway area data and to visualise it to users. AIS (Automatic Identification System) is a tracking system based on identification, location and position data automatically shared by vessels.
Snowflake, which effectively processes large data masses, was chosen as the data warehouse. The map would display hundreds of thousands of data points simultaneously. For such visual analytics, Tableau would be suitable.
The Solita team began with AIS observation data, which they processed, prepared and combined with fairway area data. In this way, the team could calculate the usage data of fairway areas, and visualise it along with AIS data and fairway area data on Tableau. The end user desktop has four views: A summary of fairway area use, plus detailed views for vessel tracking, fairway area use and waterway area use. The displays have been developed iteratively based on user feedback.
An essential part of the project has been to define the calculation logic for allocating observations to fairway areas. The agency and Solita have engaged in constructive discussions about, for example, acceptable margins of error and the possibilities to adjust the logic.
Pekka Kinnunen praises Solita’s expertise and solution-oriented approach. “Solita is very familiar with the data and has been able to propose how problems can be solved. Through examples, they illustrated what the observation data looks like, how interpretations are drawn in problematic cases, and what kind of misinterpretations those might lead to.”