Routific has a built-in Traffic Simulator, which you can increase or decrease in intensity based on your knowledge of traffic in your region.
You can find it in your Settings panel at the top-right of the dashboard. Just use the slider to adjust the average amount of traffic you expect for these routes.
Does the Traffic Simulator Use Live Traffic Data?
No, the Traffic Simulator does not use live traffic data. It is based on traffic data from the Google API.
Drivers Get Google Maps Directions (with Live Traffic!)
Routific's mobile app gives drivers a Google Maps link. This link is used for navigation between stops. These Google Maps directions are entirely separate from Routific, and come straight from Google Maps, therefore it does use live traffic data.
So, even though the route that Routific generates for you is an estimated route that doesn't use live traffic, your drivers will never be without live traffic when they're driving from stop to stop.