Collision of tall vehicles due to lean

Abstract

Tall vehicles like trucks and buses tend to sway about roll axis when they encounter an uneven road surface that interacts differently with different wheels. The extent of this sway is significantly more for tall vehicles so much so, they lean over a certain distance to the side. When two tall vehicles move on an uneven road adjacent to each other, this lean-over distance should be considered to steer the vehicle to avoid any collision. This paper presents this scenario and also discusses a method that relates the lean-over distance to road geometry.