The following map shows the origin-destination (OD) flows between the tiles according to the provided tessellation, meaning the number of trips between respective start and end tiles.
The origin of the OD flows is indicated by a small circle and by clicking on one OD connection, information on the origin and destination cell name as well as the count of for this OD connection will show up.
The legend for the intra-tile flows is below. The intra-tile flow is defined as an OD connections that starts and ends in the same tile.
The allocated privacy budget for this map is shown below and noise is applied accordingly onto the counts. The confidence interval is indicated below.
Flows below a certain threshold are not displayed (grayed out for intra-tile flows):
Due to the applied noise, flows with a low count are likely to contain a high percentage of noise. For usability reasons, such unrealistic values are not displayed/grayed out.
More specifically:
The threshold is set so that values for flows with a 5% chance (or higher) of deviating more than 20 percentage points from the estimated value are not shown.