Typically, LCVs are more likely to roll over and are subject to trailer sway and rearward amplification. The trailer's length and the number of articulation points have the most effect on stability. In short, the shorter the trailer and the greater the number of articulation points, the less stable the vehicle will be. As yet, the amount of trailer sway involved in passing situations has not been determined. This amplification is most likely to happen when a driver makes a sudden, unexpected steering movement.
Triples have the highest degree of amplification, followed by shorter doubles.
Rocky Mountain doubles and turnpike doubles offer more stability during sudden steering movements. Properly adjusted brakes are a requirement for the safe stopping of all air-braked vehicles. They are even more crucial for LCVs, since LCVs carry heavy loads dispersed among two or three trailers. With properly adjusted brakes, LCVs have more potential braking capacity than conventional tractor semitrailers. However, they also have more brakes that need adjusting, and this has presented a problem for all air-braked vehicles.