A transverse beam, also known as a cross tie or crosstie, is an important structural element used in many types of construction. It is typically made of wood, concrete, or steel and is used to support the weight of a structure, such as a bridge or railroad track. The term crosstie is derived from the fact that it is laid across two parallel beams, providing stability and strength. Crossties are essential components of railway infrastructure, providing support for the rails and allowing trains to move safely and efficiently.