DM&E's expansion would require the construction of 281 miles (452 km) of new track, upgrading 598 miles (962 km) of existing track (including all of the railroad's track in Minnesota), new interchange connections in Owatonna and Mankato, Minnesota, and three new rail yards.
Interchange connections can also jump over deleted blocks, as described above.
First, jump and interchange connections should be avoided because these lead to visual clutter.
Third, inversions lead to interchange connections that link blocks on the outer circle with blocks on the inner circle, or vice versa.
The visual clarity of the presentation is greatly influenced by two factors: The total number of jumps and interchange connections, and the number of jump edges that overlay each other.
Another partial interchange with Highland Avenue follows at exit 4 making the two connections that exit 3 omits before I-590 enters the Can of Worms, a complex interchange connecting I-590 to I-490.
The Metro system provides information on the interchange and connection characteristic of the stations on its website.
This extension was designed to connect with the Carp Bypass – a portion of Highway 17 designed to bypass the old meandering route (now known as Donald B. Munro Drive) through Carp, Marathon and Antrim that opened November 9 , 1965– with an interchange and connection to Highway 7.
The interchange includes connections to MD 25 (Falls Road), which heads into the open countryside north of Baltimore.
