Interest continues to grow in making use of partial automation to enable big-rigs to travel close together in platoons on long-distance highways. In addition to reduced accidents from partial automation (lane-keeping and connected adaptive cruise control), platooning offers significant reductions in fuel consumption.
Two platooning demonstrations have been carried out recently in Europe. Daimler Trucks in March operated a three-truck platoon on an active German autobahn, with 15-meter (50-ft.) separation between them. The video showed that when a car cut in between platooning trucks, the automation system quickly increased the spacing to 165 ft. And in April, the first cross-border truck platooning took place, as six platoons from several countries converged on the port of Rotterdam.
In this country, the legislatures of Florida and Missouri have taken action on truck platooning so far this year. Florida’s new autonomous vehicle law allows testing of semi-autonomous platoons on the state’s highways, but a companion measure that would waive the current minimum following distance of 300 ft. failed to pass. The Missouri Senate gave unanimous support to a transportation bill that includes a truck platooning pilot program; it awaits a decision by the House. James Pflum of Missouri DOT points to I-70 in the state as the logical test-bed for truck platooning.
A Silicon Valley startup company, Peloton Technology, is working actively with truck fleets, manufacturers, and state DOTs to carry out pilot projects using its semi-automation technology in two-truck platoons. The company’s business model offers the system to operators at cost, plus a fee for every mile platooned. It is preparing for on-road tests with several fleets on Texas highways this year.
A recent study of autonomous trucking by consulting firm Roland Berger identified five potential stages of automation, with driver-on-board platooning as stage 3. The firm estimated the incremental cost of equipping trucks for each stage, and its estimate for stage 3 is $6,200 per vehicle, which it thinks could be recovered via savings in fuel use and reduced accidents (with the latter providing the largest share of cost savings).
Another recent study, by Princeton Consultants, found that only 28% of the industry people it surveyed expected automation to have a moderate to large near-term impact on trucking. But Princeton’s Steve Sashihara told Fleet Owner that the longer-term impact could be significant. That’s because the industry confronts an aging workforce and a chronic driver shortage. He thinks automation could transform long-distance trucking, especially when platooning can be done without driver intervention. Current regulations limit drivers to 11 hours per day, after which they must have an eight-hour break—but a fully autonomous truck could operate nearly 24 hours a day.
And that brings me back to the topic of dedicated truck lanes. The FHWA’s Freight Facts and Figures 2015 projects truck freight doubling (in dollar value) between 2007 and 2040. In Reason Foundation’s 2013 “Interstate 2.0” study, we reviewed detailed data from FHWA’s Freight Analysis Framework for every long-distance Interstate highway. Based on FAF’s corridor-by-corridor projections, we identified 11 major corridors in which 2040 truck vehicle miles of travel (VMT) would equal or exceed 40% of total VMT. Seven of these were multi-state corridors, including major portions of I-10, I-30, I-40, I-70, I-80, and I-81. Those would be obvious candidates for dedicated truck lanes, which would be welcomed by motorists and truckers alike.
