Highway signs make it easy for road-trippers to know when the next rest stop is coming up, but they can’t tell you how busy it is.

A new app developed by a Maryland company can do that.

Annapolis-based Trip Routing Technologies has developed the RestStopsAhead app, which alerts drivers to the average daily crowd size of rest stops located ahead on the route. Crowded rest stops can increase the chances of contracting an airborne virus, such as COVID-19 and RSV, the company said.

The app also lists what amenities the upcoming rest stop has..

The app provides turn-by-turn directions to rest stops as well as final destinations. It also compares alternative routes to destinations.