Abstract: A model toy train track assembly provides separate electrical and mechanical locking or snap-together connections. A molded base of each track assembly has a protruding U-shaped feature on each end that physically joins to track assemblies or sections when pressed into a complementary receiving slot. To provide a reliable electrical connection, metal connectors corresponding to each of the rails lock into receiving connector slots of the adjoining track section. Alignment ribs on opposite sides of each rail ensure straight and accurate alignment of the rails. To prevent slipping of the rails, each rail is staked into the molded base. The rails are tubular and sized and positioned so as to provide compatibility with conventional two-rail or three-rail tubular tracks of similar gauge.