The recommended distance between freight trucks is at least 50 meters, and that’s due to many factors such as a driver’s reaction time after seeing a brake light, which is around 1.4 seconds. AI can react in as little as 0.1 seconds, which means that a convoy of freight trucks can decrease the space between them to as little as 15 meters. So, a convoy of 3 trucks that would normally take up 150 meters of highway can now take just 80 meters, almost half as much as it normally would.
An added advantage to autonomous driving integration into connected trucks is considerable reduction in CO2 emissions, with an average of 7% less fuel consumption for a 40-ton truck. This is partly due to better reaction times and more efficient coordination between a convoy of freight trucks. However, the main advantage of closer trucks is the slipstream effect, which happens when trucks are closer together and the effect of air resistance becomes considerably less for trucks behind the lead vehicle. These savings make a 40-ton freighter even more fuel efficient per ton than the average passenger car.