T-TRAK is a modular model railroad system that is growing in popularity. Although most T-TRAK modules are in N Scale, HO and Z Scale layouts are becoming more common. Dave will discuss the current standards and module construction. Advantages and disadvantages of the modular construction will be highlighted. Current manufacturers of T-TRAK module kits will be discussed. HO and N Scale modules will be displayed, including module kits and scratch-built modules.