How can I build a brick-built monorail track? LEGO haven’t released a new monorail set since the 90s, and the track parts that were made are very expensive and hard to find. 

I am interested in building a brick-built alternative. I am particularly inspired by the build shown here.



Criteria

Vehicle


6 to 8 studs wide
running on rubber tyres
motor-driven


Track Elements


straight – unlike the original, a central rack is not necessary for level or smooth gradients.
curved – can be fixed angle or flexible.
incline – can be fixed angle or flexible.
track supports
track switcher (Optional)


Parts


Cannot use existing monorail parts (including the #2681 and #2680 supports).
Avoid rare, expensive parts, or parts out of production.
Have a look at this youtube channel: MasaoHidaka The Track is made up with standard bricks and he managed to create nice curves and even switches. The switches are quite part intensive though.