Instead, consider a "point-to-point" design where trains travel between two points, even if those points include cleverly hidden tunnels or trainyards that create the illusion of a longer track.

Official track pieces can be linked up ... We’ve actually featured other LEGO train hacks before, like this neat automatic decoupler design.

The design, known internally as the ... MTA is still trying to locate a mysterious track defect that’s been wearing out the wheels on R160 train cars running on the E, F and R lines.

This design eliminates both friction and air ... Because there’s no physical contact between the train and the track, friction is virtually eliminated. Combined with low-vacuum tubes, the ...