Batch Analyst

The OpenTripPlanner Analyst web services produce map tiles or rasters derived from a single shortest path tree, which is to say that they reveal information (often travel time) about the geographic area covered by a graph from the perspective of a single origin point.

The OpenTripPlanner Analyst batch framework covers a larger range of use cases, which may involve accumulating or aggregating results derived from many independently built single source shortest path trees. Rather than a web service that serves map tiles, the batch framework includes a command-line program that is configured via Spring dependency injection XML. The locations and other attributes of path search endpoints (origins and destinations) may be loaded from Shapefile, CSV, or raster formats. Results may be saved back to a raster or a CSV file for further manipulation or analysis in a desktop GIS package like QGIS or a statistics package like R.

The number of 18-35 year old residents in the Ann Arbor, Michigan area that can reach each raster cell in less than 1 hour of transit + walking (blue=5000, yellow=100000, green=200000).