Wisconsin has several major freeways that play an important role in traveling to different cities or regions within the state. These freeways significantly impact the state's economy, logistics, and transportation network. The major freeways are as follows:

I-90 (Interstate 90)
I-90 is the main east-west highway that crosses Wisconsin. This freeway connects Minnesota and Illinois, primarily passing through La Crosse and Madison in Wisconsin. The segment from La Crosse to Madison is particularly used as an important transportation route.

I-94 (Interstate 94)
I-94 is a significant north-south highway that crosses Wisconsin. This freeway connects Milwaukee and Madison and serves as a key transportation corridor linking Minnesota and Illinois. Milwaukee and Madison are well connected by this road.

I-43 (Interstate 43)
I-43 is a highway that starts in Milwaukee and extends north to Green Bay. This freeway connects Milwaukee and Green Bay and is an important route linking the eastern and northern parts of the state.

I-41 (Interstate 41)
I-41 is a highway that crosses the central and northern parts of the state. This road connects Green Bay, Wisconsin Dells, Oshkosh, and serves as an important road linking the northern and southern parts of the state.

I-35 (Interstate 35)
I-35 is a highway that connects the southern and northern parts of Wisconsin. This road links Minnesota and Illinois and is particularly an important route connecting major cities and suburban areas.

US-51 (U.S. Route 51)
US-51 is a major road running north-south in Wisconsin. This road primarily connects the central and northern regions and is sometimes used in conjunction with I-39.

In addition, various state routes and highways form an important transportation network within Wisconsin.

In particular, I-90 and I-94 play a very important role in the state's economy and logistics flow.