Interchanges vs Overpass - What's the difference?

As nouns the difference between interchanges and overpass

is that interchanges is while overpass is a section of a road or path that es over an obstacle, especially another road, railway, etc.

to pass above something, as when flying or moving on a higher road.

(head)

(es)

A section of a road or path that es over an obstacle, especially another road, railway, etc.

The homeless man had built a little shelter, complete with cook-stove, beneath a concrete overpass .

flyover (UK)

underpass (US&UK) subway (UK)

(es)

To pass above something, as when flying or moving on a higher road.

Gillian watched the overpassing shoppers on the second floor of the mall, as she relaxed in the bench on the ground floor.

To exceed, overstep, or transcend a limit, threshold, or goal.

(Robert Browning)

Marshall was really overpassing his authority when he ordered the security guards to fire their tasers at the trespassers.

The precocious student had really overpassed her peers, and was reading books written for children several years older.

To disregard, skip, or miss something.

"Don't overpass those cheeses; they're really quite excellent!" gushed Terry, pointing to the buffet table.

* Milton

All the beauties of the East / He slightly viewed and slightly overpassed .