Highway designations in Texas can be confusing, with a range of labels such as FM (Farm-to-Market), RM (Ranch-to-Market), and even BS (Business State Highway). The state has the largest highway system in the United States, featuring various types of routes including State Highways, Spurs, Loops, and some unique roadways.
The Farm-to-Market and Ranch-to-Market roads began in 1937 to help farmers move their goods more easily. There are now over 3,400 such routes—most are FM (3,257), while 176 are RM. The reason for choosing one designation over another is not entirely clear. Michael Chamberlain, director of data management in TxDOT’s Transportation Planning and Programming Division, explained: “RMs are predominately in the Texas Hill Country and west; typically ranches instead of farms. The roads themselves look about the same and are typically about the same size. So the only difference might just be cattle watching you on the side of the road instead of cotton.”
Texas also has one RR—Ranch Road One—which leads to the LBJ Ranch. Other highways include tollways that run both north and south despite their names suggesting otherwise.
Loops have a special place in Texas terminology. For example, Houston’s I-610 is called “The Loop,” while San Antonio’s I-410 is known as “Loop 410.” Not all official loops form a circle; Austin’s Loop 1 (MoPac) runs through the city rather than around it, and Loop 168 in Tenaha measures just one block long.
Business routes often use small letters below route numbers to indicate which town’s business route comes first along a highway—a feature that combines navigation with local trivia.
Travelers using these highways may also encounter interstates; Texas has more interstate miles than any other state with 25 such highways.
For those planning trips or seeking traffic updates across these varied routes, resources like Drive Texas provide real-time information for drivers.
In related transportation developments at the national level, new guidance from the U.S. Department of Transportation’s Federal Highway Administration introduced $7.3 billion in formula funding to help states address extreme weather events under President Biden’s Bipartisan Infrastructure Law. This initiative aims to improve infrastructure resilience against challenges like wildfires and flooding (source).
Additionally, Secretary Pete Buttigieg announced an expansion of FLOW (Freight Logistics Optimization Works), where supply chain companies have started securely sharing data with USDOT to optimize freight movement across national supply chains (source).
On another front focused on accessibility, USDOT marked the anniversary of the Americans with Disabilities Act by awarding $5 million through its Inclusive Design Challenge to projects enhancing mobility for people with disabilities (source).
Furthermore, nearly $20 million was awarded by USDOT’s Maritime Administration to support modernization efforts at small shipyards nationwide ($19.6 million in grant awards).
