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Interstate 670, a spur of Interstate 70, also fails to reach the 50 mile per hour minimum and instead passes through Downtown Kansas City, Missouri at 45 miles per hour. [citation needed] Interstate 75 on the Mackinac Bridge between St. Ignace and Mackinaw City, Michigan, is undivided. The bridge was designed before the start of the Interstate ...
The Manual on Uniform Traffic Control Devices for Streets and Highways (usually referred to as the Manual on Uniform Traffic Control Devices, abbreviated MUTCD) is a document issued by the Federal Highway Administration (FHWA) of the United States Department of Transportation (USDOT) to specify the standards by which traffic signs, road surface markings, and signals are designed, installed ...
The American Association of State Highway and Transportation Officials (AASHTO) is a standards setting body which publishes specifications, test protocols, and guidelines that are used in highway design and construction throughout the United States. Despite its name, the association represents not only highways but air, rail, water, and public ...
The Interstate System has also contributed to continued resistance against new public transportation. [108] The Interstate Highway System had a negative impact on minority groups, especially in urban areas. Even though the government used eminent domain to obtain land for the Interstates, it was still economical to build where land was cheapest.
There are 71 primary Interstate Highways in the Interstate Highway System, a network of freeways in the United States. These primary highways are assigned one- or two-digit route numbers, whereas their associated auxiliary Interstate Highways receive three-digit route numbers. Typically, odd-numbered Interstates run south–north, with lower ...
The I-90 Exit 31 Planning and Environmental Linkages (PEL) Study is being undertaken by HOCTC in partnership with the New York State Department of Transportation (NYSDOT) Region 2 and a Technical ...
U.S. Route 31 or U.S. Highway 31 (US 31) is a major north–south U.S. highway connecting southern Alabama to northern Michigan. Its southern terminus is at an intersection with US 90/US 98 in Spanish Fort, Alabama. Its northern terminus is at an interchange with Interstate 75 (I-75) south of Mackinaw City, Michigan.
Ohio State Route 31; Oklahoma State Highway 31; Oregon Route 31; Pennsylvania Route 31; South Carolina Highway 31; Tennessee State Route 31; Texas State Highway 31. Texas State Highway Spur 31; Farm to Market Road 31; Texas Park Road 31; Utah State Route 31; Vermont Route 31; Virginia State Route 31. Virginia State Route 31 (1923-1933) (former ...