how to cut atlas 072 track

Mark where the rails are, run brass screws into the deck with the height set so that the screws rest on the bottoms of the rails without forcing the track off the roadbed.  Solder the rails to the screw heads.
Then cut the track with a dremel and a cutoff disk.
Obviously, you’ll need to make sure that several feet of track on either side of the opening are similarly immobilized with track screws, glue, etc…

Depends on a number of factors,

have a picture of the area?

A Dremel tool w/ the 1-1/2” cut off discs works very well to cut track.

A small battery powered circular saw w/a narrow kerf grinding/cut off wheel works really well if you need to cut  a bunch of track.

When I did the power lift-bridge and my swing-up bridge, I cut so there was a bit of overhang on the movable side that was raised.

Dremel with cut off wheel. Be prepared to go through a few. Sometimes you can cut a bunch with just one next time you can’t seem to get through one rail without them  breaking. Wear eye protection

I bought this on sale for $30 at Harbor Freight, great tool for cutting track.  If I'm cutting in place I use the Dremel with a 90 degree adapter and fiber cutoff wheels.

Hey John - Does the HF chop saw come with a blade ??? - can you recommend a blade for cutting track

Thank You

John, cool, can you put a picture of the 90 degree adapter. I have not seen one,  Thanks for the tip.

That's the blade that it came with, it did my roughly 500 feet of track for my layout and it's still almost like new.

To go along with the great suggestions above, no matter what you use, Get adequate  eye  protection! you only have  2 , it would be shame to lose 1.

Thanks John, that’s great, thanks for picture.

personally, when it comes to dremel tool, a flexible shaft is more useful than a 90°.

Hidden hinges!! 

You go to Home depot or, a hard ware store...you look for the most expensive kitchen cabinet door hinges...check them out.... 

They are under the table, but lift clear. 

A bit of a bother to mount....  Mount first; then cut the table top! 

About 40 years ago, I found a "Diamond hacksaw blade"...It cost like ****, but you could cut an 022 switch on your knee!! 

Get the Diamond one, not the lumpy one.  The plastic cover should feel smooth....