The TravelTime toolbox is a Python toolbox. ArcGIS Pro asks before running the code in any Python toolbox, so you’ll see the prompt the first time you open it and again after each update. Click Yes to allow it.
If you clicked No
The tools won’t run until you allow the code. To fix this:
In the Catalog pane, right-click the TravelTime toolbox.
Click Refresh Python Toolbox Access Permission.
Click Yes when Pro asks again.
For IT teams
Some organisations block Python toolboxes from running. If the prompt doesn’t appear, or the tools won’t run after you click Yes, ask your IT team to allow the TravelTime toolbox. The add-in also needs:
Network access to
https://api.traveltimeapp.comandhttps://data.traveltimeapp.comWrite access to its own install folder, where it saves temporary files during each run