Texas Built An 85-MPH Road For Humans, But The Next Driver You See Might Not Be Human
Texas 130’s famous 85 mph limit is now drawing interest from autonomous truck firms
Texas Built An 85-MPH Road For Humans, But The Next Driver You See Might Not Be Human
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by Stephen Rivers

  • Texas 130 is America’s only highway with an 85 mph speed limit.
  • Autonomous trucking companies are increasingly eyeing the corridor.
  • Its high speeds and lighter traffic make it an attractive test route.

Americans have a reputation for treating speed limits like suggestions. Sure, that’s probably due to several factors outside of their control, but at least one stretch of road encourages them to put their foot down a little more.

That’s Texas State Highway 130, the only road in America where drivers can legally go 85 mph (137 km/h). It’s also one of the most attractive sections of road for autonomous trucking companies.

More: Speed Limits Are Outdated, And We All Know It

The obscure toll road is a 41-mile section of pavement between Austin and Seguin. The 85 mph limit showed up all the way back in 2012. Safety advocates who cite speed as the boogie man would struggle to find data proving that it’s created a problem on SH-130, though. Instead, it’s become what many autonomous vehicle companies see as a prime test bed thanks to its higher speeds and lower traffic.

According to Kavout, the SH 130 Concession Company, the entity overseeing SH 130, is working on a next-gen rest stop “designed to manage autonomous trucks with high-capacity EV charging and specialized docking requirements.” Einride, Aurora Innovation, Waymo, and others are already operating autonomous vehicles or planning to in the near future.

Autonomous Truck Permits Open

The state DMV will begin accepting applications for commercial automated vehicle authorization in May of this year. That’s key because we’re not talking about trucks that require a human driver ready to take over. We’re talking about Level 4 and Level 5 autonomy, where humans can sit back and relax.

That doesn’t necessarily mean your next drive on TX-130 will involve convoys of driverless semis blasting past at 85 mph. Most autonomous trucking companies still operate with safety drivers onboard, and fully driverless freight operations remain limited.

Still, the road’s unique speed limit gives it something no other American highway has. A chance to become the real-world laboratory for testing how autonomous trucks behave at the kind of speeds most states still consider excessive. For more than a decade, Texas 130 has been known as the fastest highway in America. Before long, it may also become the smartest. Or at least the most automated.

US Maximum Posted Speed Limits by State (MPH)

State Rural Interstates Urban Interstates Other Limited Access Roads Other Roads
Alabama 70 70 65 65
Alaska 65 55 65 55
Arizona 75 65 65 65 (trucks: 65)
Arkansas 75 (trucks: 70) 65 75 (trucks: 70) 65
California 70 (trucks: 55) 65 (trucks: 55) 70 (trucks: 55) 65 (trucks: 55)
Colorado 75 65 65 65
Connecticut 65 55 65 55
Delaware 65 55 65 55
District of Columbia n/a 55 n/a 25
Florida 70 65 70 65
Georgia 70 70 65 65
Hawaii 60 60 55 45
Idaho 75; 80 (specified segments) 75; 80 (specified segments) 70 70
Illinois 70 55 65 55
Indiana 70 (trucks: 65) 55 60 55
Iowa 70 55 70 65
Kansas 75 75 75 65
Kentucky 65; 70 (specified segments) 65 65 55
Louisiana 75 70 70 65
Maine 75 75 75 60
Maryland 70 70 70 55
Massachusetts 65 65 65 55
Michigan 70 (65 trucks); 75 (65 trucks, specified segments) 70 70 55
Minnesota 70 65 65 60
Mississippi 70 70 70 65
Missouri 70 60 70 65
Montana 80 (trucks: 70) 65 (day: 75; night: 70) 65 (day: 70; night: 65) 55
Nebraska 75 70 70 65
Nevada 80 65 70 70
New Hampshire 65; 70 (specified segments) 65 55 55
New Jersey 65 55 65 55
New Mexico 75 75 65 55
New York 65 65 65 55
North Carolina 70 70 70 55
North Dakota 80 75 70 65
Ohio 70 65 70 55
Oklahoma 75; 80 (specified segments) 70 70 70
Oregon 65; 70 (specified segments; trucks: 55; 65 on specified segments) 55 65 65
Pennsylvania 70 70 70 55
Rhode Island 65 55 55 55
South Carolina 70 70 60 55
South Dakota 80 80 70 70
Tennessee 70 70 70 65
Texas 75; 80 / 85 (specified segments) 75 75 75
Utah 75; 80 (specified segments) 70 75 65
Vermont 65 55 50 50
Virginia 70 70 65 55
Washington 70; 75 (specified segments, trucks: 60) 60 60 60
West Virginia 70 55 65 55
Wisconsin 70 70 70 55
Wyoming 75; 80 (specified segments) 75; 80 (specified segments) 70 70

Source: NHTSA

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