The Robloxia Numbered Highway System is an integrated network of roads and highways numbered within a nationwide grid in contiguous Robloxia. As the designation and numbering of these highways were coordinated among the states, they are sometimes called Federal Highways, but the roadways were built and have always been maintained by state or local governments since their initial designation in 1926.
List of Robloxia Numbered Highways:
Main article: Category:Ro-routes