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The U.S. Department of Transportation's Federal Highway Administration Manual on Uniform Traffic Control Devices (MUDCD) does not indicate a regulation for the length of the lines but it does give this guide.


Broken lines should consist of 3 m (10 ft) line segments and 9 m (30 ft) gaps, or dimensions in a similar ratio of line segments to gaps as appropriate for traffic speeds and need for delineation. Option:

A dotted line for line extensions may consist of 0.6 m (2 ft) line segments and 0.6 m (2 ft) to 1.8 m (6 ft) gaps. A dotted line for lane drop/add markings may consist of 0.9 m (3 ft) line segments and 2.7 m (9 ft) gaps.

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Q: How long are the white lines on the interstate highways?
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Can you drive farm tractors on the Illinois highways?

Yes, as long as it isn't a restricted access highway such as part of the interstate highway system.

Is it illegal to have electrical power lines over highways?

Not as long as the proper clearances are observed.

How did the Interstate Highway Act have an affect on Americans?

It resulted in a grid of highways two (or more) lane going north-south and ease-west criss-crossing the United States as well as highways sections connecting them, going around cities and going through cities. It facilitated long distance travel. These are the interstate highways people use for long distance and high speed travelling by car or bus replacing the use of the railroad system for long distance shipping and travelling. It became the standard way we ship food and other products by truck from the source to the consumer market.

What are the major highways of Rhode Island?

Three major interstate highways cross the state of Connecticut:* I-91 runs along the southwest shoreline and then northward along the Connecticut river, into Massachusetts * I-95 runs approximately east-west along the Long Island Sound shoreline to Rhode Island* I-84 is entirely inland and runs diagonally, approximately southwest-northeast to Massachusetts

What is the difference between interstate highway and interstate highway?

Highways are roads that are usually maintained by the local government (or even the state - never federal) but the funding for the highway can come from the federal government. State highways never cross state lines. US highways do cross state lines. US highways were established to create paths for travel where the road number does not change from state to state. This was done to make interstate travel easier and was mandated by congress in the 1930s if memory serves me correctly. Freeway is a road that has NEVER been a toll road and NEVER will be. Interstate - highway that crosses state lines and is not a US highway. This is a seperate act of congress and was established in the 1950s to create highways that were limited access and were designed for those traveling long distances on a regular basis. EDIT*** I looked at the definitions for freeway, expressway (you didn't ask, but I looked anyhow), etc. and it seems as though there is a small bit of confusion relating to this specific definition of the word freeway. True, the answer below does appear to be factual, but I do seem to recall a state that has designated a definition of a freeway as the one I provided, but I am unable to find the site that stated this (I have seen this and not in a dream). For all intents and purposes however, it appears as though the most common definition for a freeway is a limited access, divided highway. It also appears that a highway is an undivided road (based on the definition of the other terms). In the US, it's a matter of who pays for them. The federal government pays for the interstate highways. They can look very similar, e.g., both can have ramps for heavy traffic. From the source links: The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly called the Interstate Highway System or Interstate Freeway System, and colloquially referred to as "the Interstate", is a network of limited-access roadways (also called freeways, highways, or expressways) in the United States. It is named for President Dwight D. Eisenhower, who championed its formation. As of 2006, the system has a total length of 46,876 miles (75,440 km).[1] The Interstate Highway System is a subsystem of the National Highway System. The National Highway System (NHS) of the United States comprises approximately 160,000 miles (256,000 kilometers) of roadway, including the Interstate Highway System and other roads, which are important to the nation's economy, defense, and mobility. It is the world's longest highway system. The system, which was developed by the United States Department of Transportationin cooperation with the states, local officials, and metropolitan planning organizations was approved by the United States Congress in 1995. It encourages individual states to focus on strategic routes support these with federal funds where the States can incorporate design and construction improvements that address their traffic needs safely and efficiently.

How long is Tennessee's Interstate 24?

Interstate 24 is an Interstate Highway in the Midwest that is 316.36 miles or 509.13 kilometers long. The highway runs in Kentucky, Tennessee, and Georgia.

How long did it take to build interstate 15?

it took 27years to build interstate 75.

What is the great white shark being protected from not extinction?

No fishing for them and releasing from long lines

How many miles long is Interstate 40?

Interstate 40 is 2,555.10 miles long. The only two interstates in the United States that are longer than Interstate 40 are I-80 and I-90.

What is the shortest 2 digit interstate highway in the us?

The Answer Is Interstate 97 In Maryland It is only 17 Miles Long! Next Is Interstate 19 In Arizona.

How long is interstate 45?

285 miles.

In the 1950s the US spent a large amount of money building the Interstate system of highways This system links major cities across the country what was a desirable cons?

If my memory is still good ten that happened at a time when unemployment was high and money was hard to come by. If the current US government can afford to keep the Interstate Highway system in good repair then it will last a long time