OGC announces new JSON Encoding Extension to its Moving Features Standard; seeks public comment before approval

New Moving Features Extension provides a JSON encoding as an alternative to XML or Simple CSV

22 October 2019: The Open Geospatial Consortium (OGC) is seeking public comment on the new OGC Moving Features Encoding Extension - JSON candidate standard. Comments are due 21 November, 2019.

This candidate standard defines how to encode and share the various movements of geographic features by using JavaScript Object Notation (JSON). Such a ‘moving feature’ is one whose location changes over time. For example, a car, a pedestrian, an airplane, a ship, etc.

OGC Moving Features Encoding Extension - JSON provides an IETF GeoJSON encoding for OGC Moving Features as an alternative to XML Core or Simple CSV. A moving feature contains a temporal geometry, whose location continuously changes over time, as well as dynamic non-spatial attributes whose values vary with time. The JSON Encoding Extension supports, 0- (point trajectories), 1- (lines), 2- (polygons), and 3-dimensional (polyhedrons) objects with locations and/or properties that vary over time.

The ability to attribute time-varying properties to an object (rather than just varying its location or trajectory), has utility and value in many current application areas, including: Location Based Services, Intelligent Transportation Systems, Disaster Risk Management Systems, and Smart City Applications. For example, the traffic congestion on roads and ‘hotspots’ of air pollution are typical moving features seen in the real world.

The representation of the following phenomena in a spatiotemporal domain is within the scope of this Encoding Standard:

  • Discrete phenomena, which exist only on a set of instants, such as road accidents;
  • Step phenomena, where the changes of locations are abrupt at an instant, such as administrative boundaries;
  • Continuous phenomena, whose locations move continuously for a period in time, such as vehicles, typhoons, or floods.

The candidate OGC Moving Features Encoding Extension - JSON is available for review and comment on the OGC Portal. Comments are due by the 21st of November, 2019, and should be submitted via the method outlined on the OGC Moving Features Encoding Extension - JSON request page.

About OGC

The Open Geospatial Consortium (OGC) is an international consortium of more than 530 businesses, government agencies, research organizations, and universities driven to make geospatial (location) information and services FAIR - Findable, Accessible, Interoperable, and Reusable.
OGC’s member-driven consensus process creates royalty free, publicly available geospatial standards. Existing at the cutting edge, OGC actively analyzes and anticipates emerging tech trends, and runs an agile, collaborative Research and Development (R&D) lab that builds and tests innovative prototype solutions to members' use cases.
OGC members together form a global forum of experts and communities that use location to connect people with technology and improve decision-making at all levels. OGC is committed to creating a sustainable future for us, our children, and future generations.
Visit ogc.org for more info on our work.

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