The Direction filter includes and excludes vehicles based on their direction of travel, derived from the direction specified in a dataset's header. The default setting is all directions included.
Direction filter compass examples
The black arrows in the compass indicate the combined direction codes of the tagged datasets. The first example above indicates at least one tagged dataset with a unidirectional code of North-bound. The second example indicates data is available for both East and West-bound traffic. This may be from a bidirectional dataset, or separate east and west datasets.
Remember, the direction code specified when a RSU was setup is simply a descriptive field. Data may still be available for directions other than those indicated by the compass.
Toggling included directions
Directions are included and excluded by toggling the four buttons around the compass, the effect of which can be seen in the Directions included in reports box at the top. A black cross in a button indicates that direction will be excluded from the report.
The Direction modifier drop-down list at the bottom provides a number of automatic direction filtering options. The Auto-select options automatically set the four direction buttons per the compass directions. The Primary direction is the A>B direction, and Secondary is B>A. Where multiple datasets are tagged, the A>B direction of the first tagged dataset is used. Note that the four buttons are disabled when using these options.
Auto-selecting the primary direction
The last two options in the list filter vehicles based on their A>B or B>A direction of travel, before the normal compass direction filtering is applied. This can be used for entering and exiting filtering where several RSUs are used to cover a site, and a consistent A>B layout is used for each RSU.