Final answer:
To improve the visibility of an operational layer on a web map, you can toggle layers on and off, choose a different, less detailed basemap, or adjust the transparency of the operational layer or basemap to better distinguish the layers.
Step-by-step explanation:
If the operational layer of your web map is difficult to see because the basemap includes a lot of detail, there are several strategies you can employ to improve visibility. One simple solution is to toggle layers on and off. You could click on a button on the side to turn a particular layer on and click again to turn it off. This allows you to control which layers are visible at any given time and can help in reducing the visual clutter.
Another approach is to choose a different basemap that is less detailed or has a clearer contrast with your operational layer. In some mapping applications, you have various options for base layers that range in detail and style.
Lastly, adjusting the transparency of the operational layer or the basemap can also be beneficial. By making the basemap more transparent, you can allow the details of the operational layer to stand out more clearly. This way, you can create a more user-friendly and easy-to-read web map, without losing important base information provided by the basemap.