I don't know if anyone has done the comparison but here is my take on the Kato Unitrack and Atlas True-Track.
I have included several pictures to show the two side by side.
- Both are molded track and are of high quality with realistic ballasted track including integrated nickel silver rail. The Kato is a dark gray while the Atlas is a light tan.
- Both go together and come apart easily with out breaking allowing temporary layouts to be built and designed.
- The Kato track uses code 80 weight rail that is compatible with standard code 80 snap track through the use of a Kato converter track.
- The Atlas true-track uses lighter code 65 weight rail and transition to cod 55 or code 80 requires a bit of work but is able to be done.
- Both Kato and Atlas will accept low profile wheels and also the older standard flange wheels such as the Micro-Trains Pizza cutters. This is important if your loco roster contains many older locos.
- The Kato and Atlas track pieces are not interchangeable (easily)
- Track joiners on the Kato track are removable and replaceable. The track joiners on the Atlas True-track are part of the roadbed and not removable.
- The rail joiners on the Kato track are part of the track joiner, the rail joiner on the True-Track is a separate piece just as on the atlas standard track.