Skip to Content
Streetsblog USA home
Streetsblog USA home
Log In
Freight

GAO: Trucking the Least Efficient Mode of Freight Shipping

Freight transportation, which accounts for nearly a quarter of transportation-related greenhouse gas emissions, doesn’t get as much attention as passenger transportation because most people don’t feel it affects them as much. But more than 15 million trucks deliver 70 percent of the goods this country consumes – and the GAO says that’s a mistake.

Safety is one of many externalized costs of freight trucking. Photo: ##http://www.truckaccidents360.com/blog/583/dallas-semi-truck-accident-involving-budweiser-big-rig-on-i-20/##Truck Accidents 360 Newswire##

The Government Accountability Office published a study finding that the costs of freight trucking that are not passed on to the consumer are at least six times greater than the equivalent rail costs and at least nine times greater than the equivalent waterways costs. Many of those are externalized costs passed on to society – like congestion, pollution, and crashes – as well as public costs, like infrastructure maintenance.

These externalized and public costs are just another way that taxpayers subsidize highways. The GAO implies that the country's highway-centric transportation policy could be damaging the economy.

“When prices do not reflect all these costs, one mode may have a cost advantage over the others that distorts competition,” writes the GAO. “As a consequence, the nation could devote more resources than needed to higher cost freight modes, an inefficient outcome that lowers economic well-being.”

The report goes on to say, “If government policy gives one mode a cost advantage over another, by, for example, not recouping all the costs of that mode's use of infrastructure, then shipping prices and customers' use of freight modes can be distorted, reducing the overall efficiency of the nation's economy.”

The GAO didn’t make recommendations in this report but did say that policy changes that make prices align with the true costs of freight shipping would provide a great economic benefit. Less targeted changes, like charging user fees, subsidizing more efficient alternatives, or applying safety or emissions regulations – could be helpful as well. The report acknowledges that “the current configuration of transportation infrastructure can limit the shifting of freight among modes.”

After all, we’ve been building a lot more highways than railroads lately.

Stay in touch

Sign up for our free newsletter

More from Streetsblog USA

Confirmed: Non-Driving Infrastructure Creates ‘Induced Demand,’ Too

Widening a highway to cure congestion is like losing weight by buying bigger pants — but thanks to the same principle of "induced demand," adding bike paths and train lines to cure climate actually works.

January 9, 2026

Friday’s Headlines Are Unsustainably Expensive

To paraphrase former New York City mayoral candidate Jimmy McMillan, the car payment is too damn high.

January 9, 2026

Talking Headways Podcast: Poster Sessions at Mpact in Portland

Young professionals discuss the work they’ve been doing including designing new transportation hubs, rethinking parking and improving buses.

January 8, 2026

Exploding Costs Could Doom One of America’s Greatest Highway Boondoggles

The Interstate Bridge Replacement Project and highway expansion between Oregon and Washington was already a boondoggle. Then the costs ballooned to $17.7 billion.

January 8, 2026

Mayor Bowser Blasts U.S. DOT Talk of Eliminating Enforcement Cameras in DC

The federal Department of Transportation is exploring how to dismantle the 26-year-old enforcement camera system in Washington, D.C.

January 8, 2026

Thursday’s Headlines Are Making Progress

By Yonah Freemark's count, 19 North American transit projects opened last year, with another 19 coming in 2026.

January 8, 2026
See all posts