TomTom VIA Reference Manual page 32

Tap this button to block or unblock a street. You can block or unblock the
street in one or both directions.
For example, to correct a street near to your current location, do the
following:
(Un)block street
1. Tap (Un)block street.
2. Tap Near you to select a street near your current location. You can
3. Select the street or section of a street you want to correct by tapping it
4. Tap Done.
5. Tap one of the direction buttons to block or unblock the flow of traffic
6. Tap Done.
Tap this button to correct the traffic direction of a one-way street, where
the direction of traffic is different from the direction shown on your map.
Reverse traffic
direction
select a street by name, a street near your Home location or a street on
the map.
on the map.
The street you select is highlighted and the cursor shows the name of
the street.
Your device shows the street and whether the traffic is blocked or
allowed in each direction.
in that direction.
Note: Reverse traffic direction only works for one-way streets. If you
select a two-way street you will be given the chance to block/unblock the
street rather than changing the direction.
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