First thing to do is to have the custom locations set in your account. Then, you will block the speeding events inside these locations.
1- Access the Location Module, on the Services menu.
2 - In the location module, search for the map location where speeding alerts will be ignored. For this action, you can use the search feature on the top-right of the map.
3 - Then zoom in on the place you want to block speeding alerts and simply right-click or left-click on the desired location and choose the “Add as custom location” option.
4 - The system will display a menu on the left side of the map where you will enter the location’s name and select a group for it. In the example below we are creating a Toll group (this means you can add the different tolls around Ireland and group them with a tag). Then, click on “Save location” to confirm the creation.
Note: When doing this creation, you can also change the poligon’s size and format to better fit it to the location by dragging its limits like in the example below: 
5 - After creating the custom location, you will need to log out and log in again to reload the cache of your browser.
6 - When logged in again, please access the settings option on the Driving Style module:
7 - Select the tab “Speed Summary Settings” and finally select the custom location group(s) that you want to block speeding alerts in this zone.
8 - Click on the option “Apply changes” to confirm them. Now, the system will automatically ignore all speed alerts from the location(s) selected.