CONTINUOUS WELDED RAIL (CWR)

Rail consisting of pieces welded together into long lengths, thus reducing rail joints. Provides smoother ride and less maintenance expense than rail with bolted joints. Rail strings can be as long as the distance between switches or insulated joints, often miles. Rail strings about 1500 feet long are usually fabricated in welding plants using an electric flash-butt process, then loaded onto rail rack cars for movement to the place of installation. Also called Ribbon Rail.