Question

WILL MEDALL & FANN

What transportation innovation most directly led to the construction of interstates?

a. The automobile.
b. ENIAC
c. Railroads
d. The airplane

Answer 1

@Surana

Answer 2

"Interstate" redirects here. For other uses, see Interstate (disambiguation).
Dwight D. Eisenhower National System of Interstate and Defense Highways
Interstate 80 markerInterstate 80 Business marker Eisenhower Interstate System sign
Highway shields for Interstate 80, Business Loop Interstate 80, and the Eisenhower Interstate System

Interstate Highways in the 48 contiguous states. Alaska, Hawaii, and Puerto Rico also have Interstate Highways. (See version with numbers.)
System information
Formed: June 29, 1956[1]
Length: 47,856 mi[a] (77,017 km)
Highway names
Interstates: Interstate X (I-X)
System links
Interstate Highway System
Main Auxiliary Suffixed Business

A rural stretch of I-5, with two lanes in each direction separated by a large grassy median and with cross-traffic limited to overpasses and underpasses
The Dwight D. Eisenhower National System of Interstate and Defense Highways (commonly known as the Interstate Highway System, Interstate Freeway System, Interstate System, or simply the Interstate) is a network of controlled-access highways that forms a part of the National Highway System of the United States. The system is named for President Dwight D. Eisenhower, who championed its formation. Construction was authorized by the Federal Aid Highway Act of 1956, and the original portion was completed 35 years later, although some urban routes were cancelled and never built. The network has since been extended, and as of 2013, it had a total length of 47,856 miles (77,017 km),[2] making it the world's second longest after China's. As of 2013, about one-quarter of all vehicle miles driven in the country use the Interstate system.[3] The cost of construction has been estimated at $425 billion (in 2006 dollars)

Answer 3

The United States government's efforts at constructing a national network of highways began on an ad hoc basis with the passage of the Federal Aid Road Act of 1916, which provided for $75 million over a five-year period for matching funds to the states for the construction and improvement of highways.[5] The nation's revenue needs associated with World War I prevented any significant implementation of this policy, which expired in 1921.

As the landmark 1916 law expired, new legislation was passed—the Federal Aid Highway Act of 1921 (Phipps Act). This new road construction initiative once again provided for federal matching funds for road construction and improvement, $75 million allocated annually.[5] Moreover, this new legislation for the first time sought to target these funds to the construction of a national road grid of interconnected "primary highways" setting up cooperation among the various state highway planning boards.[5]

The Bureau of Public Roads asked the Army to provide a list of roads it considered necessary for national defense.[6] In 1922 General John J. Pershing, former head of the American Expeditionary Force in Europe during the war, complied by submitting a detailed network of 20,000 miles of interconnected primary highways—the so-called Pershing Map.[5]

A boom in road construction followed throughout the decade of the 1920s, with such projects as the New York parkway system constructed as part of a new national highway system. As automobile traffic increased, planners saw a need for such an interconnected national system to supplement the existing, largely non-freeway, United States Numbered Highways system. By the late 1930s, planning had expanded to a system of new superhighways.

In 1938 President Franklin D. Roosevelt gave Thomas MacDonald, chief at the Bureau of Public Roads, a hand-drawn map of the United States marked with eight superhighway corridors for study.[6] In 1939, Bureau of Public Roads Division of Information chief Herbert S. Fairbank wrote a report called Toll Roads and Free Roads, "the first formal description of what became the interstate highway system", and in 1944 the similarly themed Interregional Highways.[7][8]

The Interstate Highway System gained a champion in President Dwight D. Eisenhower, who was influenced by his experiences as a young Army officer crossing the country in the 1919 Army Convoy on the Lincoln Highway, the first road across America. Eisenhower gained an appreciation of the Reichsautobahn system, the first "national" implementation of modern Germany's Autobahn network, as a necessary component of a national defense system while he was serving as Supreme Commander of the Allied forces in Europe during World War II.[9] He recognized that the proposed system would also provide key ground transport routes for military supplies and troop deployments in case of an emergency or foreign invasion.

Answer 4

The Interstate Highway System was authorized by the Federal Aid Highway Act of 1956[11]—popularly known as the National Interstate and Defense Highways Act of 1956—on June 29.

Three states have claimed the title of first Interstate Highway. Missouri claims that the first three contracts under the new program were signed in Missouri on August 2, 1956. The first contract signed was for upgrading a section of US Route 66 to what is now designated Interstate 44. On August 13, 1956, Missouri awarded the first contract based on new Interstate Highway funding, this work began on US 40 (now I-70) in St. Charles County.[12]

Kansas claims that it was the first to start paving after the act was signed. Preliminary construction had taken place before the act was signed, and paving started September 26, 1956. The state marked its portion of I‑70 as the first project in the United States completed under the provisions of the new Federal-Aid Highway Act of 1956.[12]

The Pennsylvania Turnpike could also be considered one of the first Interstate Highways. On October 1, 1940, 162 miles (261 km) of the highway now designated I‑70 and I‑76 opened between Irwin and Carlisle. The Commonwealth of Pennsylvania refers to the turnpike as the Granddaddy of the Pikes.[12]

Milestones in the construction of the Interstate Highway System include:

October 17, 1974: Nebraska becomes the first state to complete all of its mainline interstate highways with the dedication of its final piece of I-80.[13]
October 12, 1979: The final section of the Canada to Mexico freeway Interstate 5 is dedicated near Stockton, California. Representatives of the two neighboring nations attended the dedication to commemorate the first contiguous freeway connecting the North American countries.[14]
August 22, 1986: The final section of the coast-to-coast I-80 (San Francisco, California, to New York City) is dedicated on the western edge of Salt Lake City, Utah, making I-80 the world's first contiguous freeway to span from the Atlantic to Pacific ocean and, at the time, the longest contiguous freeway in the world. The section spanned from Redwood Road to just west of the Salt Lake City International Airport. At the dedication it was noted that coincidentally this was only 50 miles (80 km) from Promontory Summit, where a similar feat was accomplished 120 years prior, the laying of the golden spike of the United States' First Transcontinental Railroad.[15][16][17]
August 10, 1990: The final section of coast-to-coast I-10 (Santa Monica, California, to Jacksonville, Florida) is dedicated, the Papago Freeway Tunnel under downtown Phoenix, Arizona. Completion of this section was delayed due to a freeway revolt that forced the cancellation of an originally planned elevated routing.[18]
September 12, 1991: I-90 becomes the final coast-to-coast Interstate Highway (Seattle, Washington to Boston, Massachusetts) to be completed with the dedication of an elevated viaduct bypassing Wallace, Idaho. This section was delayed after residents forced the cancellation of the originally planned at-grade alignment that would have demolished much of downtown Wallace. The residents accomplished this feat by arranging for most of the downtown area to be declared a historic district and listed on the National Register of Historic Places; this succeeded in blocking the path of the original alignment. After the dedication residents held a mock funeral celebrating the removal of the last stoplight on a transcontinental Interstate Highway.[18][19]
October 14, 1992: The original Interstate Highway system is proclaimed to be complete with the opening of I-70 through Glenwood Canyon in Colorado. This section is considered an engineering marvel with a 12-mile (19 km) span featuring 40 bridges and numerous tunnels and is one of the most expensive rural highways per mile built in the United States.[20][21] Although this was claimed the final section of Interstate Highway to open, at the time this section was dedicated there were still missing interchanges elsewhere in the system, making some Interstate Highways not contiguous.
The initial cost estimate for the system was $25 billion over 12 years; it ended up costing $114 billion (adjusted for inflation, $425 billion in 2006 dollars[4]) and took 35 years.[22]

Answer 5

so would it be railroads @GGGXD

Answer 6

GGGXD can handle this one.

Answer 7

You should first read this it gives you the answer.

Answer 8

alright thanks @Surana

Answer 9

and okay hold on @GGGXD

Answer 10

NP

Answer 11

Not so far im barrley in third grade

Answer 12

thats cooll

Answer 13

IM in k12 homeschool

Answer 14

thats a lot of reading thooo cx... but thats cool

Answer 15

Just read the first page

Answer 16

okaayy..

Answer 17

will yo medal me and fan me

Answer 18

yeahhh..

Answer 19

thx

Answer 20

would it be b? @Surana @GGGXD

Answer 21

yes

Answer 22

ENIAC's a computer.

Answer 23

no imean

Answer 24

then would it be A? @Surana

Answer 25

That's what I thought, but I could be wrong.

Answer 26

i think that would be right lol... thxxx so much!!

Answer 27

you well come

Answer 28

:D