Filtering Traffic Flow Data
You can use the flow resource to request traffic flow data containing speed and congestion ("jam factor") information for a geospatial area. The response data format is either XML or JSON.
Geospatial Inclusion
The service supports the following geospatial filters (addressing schemes):
- quadkey
- [Z]/[X]/[Y]
- bounding box (
bbox) - proximity (
prox) - corridor
For more information about these filters, see Selecting a Request Pattern.
Note: Response only include subcomponents of roadway items (
RW) that fall within the geospatial address. Content Filters
By default, a response contains all the available flow information for the specified spatial filter. It is, however, possible to add a further filter based on the functional class of the road through the parameter maxfunctionalclass, and a filter for minimum and maximum jam factor values through the parameters minjamfactor and maxjamfactor.