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56-479: Preliminary versions of these documents are officially known as a draft environmental impact statement (DEIS) or draft environmental impact report (DEIR). The purpose of the NEPA is to promote informed decision-making by federal agencies by making "detailed information concerning significant environmental impacts" available to both agency leaders and the public. The NEPA was the first piece of legislation that created

112-668: A "highway" as only a way open for use by motor vehicles, but the California Supreme Court has held that "the definition of 'highway' in the Vehicle Code is used for special purposes of that act" and that canals of the Los Angeles neighborhood of Venice are "highways" that are entitled to be maintained with state highway funds. Large scale highway systems developed in the 20th century as automobile usage increased. The first United States limited-access road

168-499: A CATEX from NEPA requirements as these portions of I-69 utilize existing freeways that required little more than minor spot improvements and a change of highway signage. Additionally, a CATEX can be issued during an emergency when time does not permit the preparation of an EA or EIS. An example of the latter is when the Federal Highway Administration issued a CATEX to construct the replacement bridge in

224-401: A comprehensive method to assess potential and existing environmental risks at once. It also encourages communication and cooperation between all the actors involved in environmental decisions, including government officials, private businesses, and citizens. In particular, an EIS acts as an enforcement mechanism to ensure that the federal government adheres to the goals and policies outlined in

280-802: A five-year period." A 2021 study found that areas that obtained access to a new highway experienced a substantial increase in top-income taxpayers and a decline in low-income taxpayers. Highways also contributed to job and residential urban sprawl. Highways are extended linear sources of pollution . Roadway noise increases with operating speed so major highways generate more noise than arterial streets. Therefore, considerable noise health effects are expected from highway systems. Noise mitigation strategies exist to reduce sound levels at nearby sensitive receptors . The idea that highway design could be influenced by acoustical engineering considerations first arose about 1973. Air quality issues: Highways may contribute fewer emissions than arterials carrying

336-409: A good analysis. In addition, government officials do not want to reveal an environmental problem from within their own agency. Citizens often misunderstand the environmental assessment process. The public does not realize that the process is only meant to gather information relevant to the decision. Even if the statement predicts negative impacts of the project, decision makers can still proceed with

392-403: A highway available to vehicles is also available to foot or horse traffic, a highway available to horse traffic is available to cyclists and pedestrians; but there are exceptional cases in which a highway is only available to vehicles, or is subdivided into dedicated parallel sections for different users. A highway can share ground with a private right of way for which full use is not available to

448-438: A highway. Recent examples include toll bridges and tunnels which have the definition of highway imposed upon them (in a legal order applying only to the individual structure) to allow application of most traffic laws to those using them but without causing all of the general obligations or rights of use otherwise applicable to a highway. Limited access highways for vehicles, with their own traffic rules, are called "motorways" in

504-560: A number of similarly worded definitions such as "a way over which all members of the public have the right to pass and repass without hindrance" usually accompanied by "at all times"; ownership of the ground is for most purposes irrelevant, thus the term encompasses all such ways from the widest trunk roads in public ownership to the narrowest footpath providing unlimited pedestrian access over private land. A highway might be open to all forms of lawful land traffic (e.g. vehicular, horse, pedestrian) or limited to specific modes of traffic; usually

560-409: A public highway is also known as " The King's Highway ". The core definition of a highway is modified in various legislation for a number of purposes but only for the specific matters dealt with in each such piece of legislation. This is typically in the case of bridges, tunnels and other structures whose ownership, mode of use or availability would otherwise exclude them from the general definition of

616-669: A public road is not included in the relevant statistics. The United States has the world's largest network of highways, including both the Interstate Highway System and the United States Numbered Highway System . At least one of these networks is present in every state and they interconnect most major cities. It is also the world's most expensive mega-project, as the entirety of the Interstate Highway System

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672-464: Is a significant negative externality which is difficult to evaluate quantitatively, making it difficult (but not impossible) to include in transport economics-based research and analysis. Congestion is considered a negative externality by economists. A 2016 study found that for the United States, "a 10% increase in a region's stock of highways causes a 1.7% increase in regional patenting over

728-413: Is being popular in many cities to combat most of the social problems caused from highways. In transport, demand can be measured in numbers of journeys made or in total distance travelled across all journeys (e.g. passenger-kilometres for public transport or vehicle-kilometres of travel (VKT) for private transport ). Supply is considered to be a measure of capacity. The price of the good (travel)

784-504: Is measured using the generalised cost of travel, which includes both money and time expenditure. The effect of increases in supply (capacity) are of particular interest in transport economics (see induced demand ), as the potential environmental consequences are significant (see externalities below). In addition to providing benefits to their users, transport networks impose both positive and negative externalities on non-users. The consideration of these externalities—particularly

840-410: Is not specifically sponsored by a federal agency. These factors may include actions that receive federal funding, federal licensing or authorization, or that are subject to federal control. Not all federal actions require a full EIS. If the action may or may not cause a significant impact, the agency can first prepare a smaller, shorter document called an Environmental Assessment (EA). The finding of

896-744: Is with no action taken by the lead agency. Analysis of the No Action Alternative is used to establish a baseline upon which to compare the proposed "Action" alternatives. Contrary to popular belief, the "No Action Alternative" doesn't necessarily mean that nothing will occur if that option is selected in the Record of Decision. For example, the "No Action Alternative" was selected for the I-69/Trans-Texas Corridor Tier-I Environmental Impact Statement. In that Record of Decision,

952-419: The 1920s and 1930s, many nations began investing heavily in highway systems in an effort to spur commerce and bolster national defence. Major highways that connect cities in populous developed and developing countries usually incorporate features intended to enhance the road's capacity, efficiency, and safety to various degrees. Such features include a reduction in the number of locations for user access ,

1008-449: The EA determines whether an EIS is required. If the EA indicates that no significant impact is likely, then the agency can release a finding of no significant impact (FONSI) and carry on with the proposed action. Otherwise, the agency must then conduct a full-scale EIS. Most EAs result in a FONSI. A limited number of federal actions may avoid the EA and EIS requirements under NEPA if they meet

1064-536: The LEDPA. An EIS typically has four sections: While not required in the EIS, the following subjects may be included as part of the EIS or as separate documents based on agency policy. Every EIS is required to analyze a No Action Alternative , in addition to the range of alternatives presented for study. The No Action Alternative identifies the expected environmental impacts in the future if existing conditions were left as

1120-401: The NEPA. An EIS should be created in a timely manner as soon as the agency is planning development or is presented with a proposal for development. The statement should use an interdisciplinary approach so that it accurately assesses both the physical and social impacts of the proposed development. In many instances an action may be deemed subject to NEPA's EIS requirement even though the action

1176-621: The Texas Department of Transportation opted not to proceed with building its portion of I-69 as one of the Trans-Texas Corridors to be built as a new-terrain route (the Trans-Texas Corridor concept was ultimately scrapped entirely), but instead decided to proceed with converting existing US and state routes to I-69 by upgrading those roads to interstate standards. The NEPA process is designed to involve

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1232-479: The Tier I EIS would analyze the potential socio-environmental impacts along a general corridor, but would not identify the exact location of where the action would occur. A Tier I ROD would be issued approving the general area where the action would be implemented. Following the Tier I ROD, the approved Tier I area is further broken down into subareas, and a Tier II EIS is then prepared for each subarea, that identifies

1288-427: The U.S., many of these effects are from racist planning practices from before the advent of civil rights . This would result in the vast majority of displacement and social effects mostly going to people like African Americans. In recent times, the use of freeway removal or the public policy of urban planning to demolish freeways and create mixed-use urban areas, parks, residential, commercial, or other land uses

1344-671: The UK. Scots law is similar to English law with regard to highways but with differing terminology and legislation. What is defined in England as a highway will often in Scotland be what is defined by s.151 Roads (Scotland) Act 1984 (but only "in this act" although other legislation could imitate) simply as a road , that is: The word highway is itself no longer a statutory expression in Scots law but remains in common law. In American law,

1400-560: The US and Ontario . These classifications refer to the level of government (state, provincial, county) that maintains the roadway. In British English , "highway" is primarily a legal term. Everyday use normally implies roads, while the legal use covers any route or path with a public right of access, including footpaths etc. The term has led to several related derived terms, including highway system , highway code , highway patrol and highwayman . Major highways are often named and numbered by

1456-540: The United States, it is also used as an equivalent term to controlled-access highway , or a translation for motorway , Autobahn , autostrada , autoroute , etc. According to Merriam-Webster , the use of the term predates the 12th century. According to Etymonline , "high" is in the sense of "main". In North American and Australian English , major roads such as controlled-access highways or arterial roads are often state highways (Canada: provincial highways ). Other roads may be designated " county highways " in

1512-565: The act encourages them to consider the environmental costs of a project and introduces new information into the decision-making process. The NEPA has increased the influence of environmental analysts and agencies in the federal government by increasing their involvement in the development process. Because an EIS requires expert skill and knowledge, agencies must hire environmental analysts. Unlike agencies who may have other priorities, analysts are often sympathetic to environmental issues. In addition, this feature introduces scientific procedures into

1568-538: The action can proceed. Obtaining these permits typically requires the lead agency to implement the Least Environmentally Damaging Practicable Alternative (LEDPA) to comply with federal, state, and local environmental laws that are ancillary to NEPA. In some instances, the result of NEPA analysis leads to abandonment or cancellation of the proposed action, particularly when the "No Action" alternative ends up being

1624-653: The cost and schedule for implementing the action under control. However, many activities require various federal permits to comply with other environmental legislation, such as the Clean Air Act , the Clean Water Act , Endangered Species Act and Section 4(f) of the Federal Highway Act to name a few. Similarly, many states and local jurisdictions have enacted environmental laws and ordinances, requiring additional state and local permits before

1680-498: The criteria for a categorical exclusion (CATEX). A CATEX is usually permitted when a course of action is identical or very similar to a past course of action and the impacts on the environment from the previous action can be assumed for the proposed action, or for building a structure within the footprint of an existing, larger facility or complex. For example, two recently completed sections of Interstate 69 in Kentucky were granted

1736-529: The environment. Because of the intense level of detail required in analyzing the alternatives presented in an EIS or EA, such documents may take years or even decades to compile, and often compose of multiple volumes that can be thousands to tens of thousands of pages in length. To avoid potential conflicts in securing required permits and approvals after the ROD is issued, the lead agency will often coordinate with stakeholders at all levels, and resolve any conflicts to

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1792-620: The exact location of where the proposed action will take place. The preparation of Tier II EISs for each subarea proceeds at its own pace, independent from the other subareas within the Tier I area. For example, parts of the proposed Interstate 69 extension in Indiana and Texas , as well as portions of the Interstate 11 corridor in Nevada and Arizona are being studied through a two-tiered process By requiring agencies to complete an EIS,

1848-469: The federal government's Manual on Uniform Traffic Control Devices ). Italy was the first country in the world to build controlled-access highways reserved for fast traffic and for motor vehicles only. The Autostrada dei Laghi ("Lakes Highway"), the first built in the world, connecting Milan to Lake Como and Lake Maggiore , and now parts of the A8 and A9 highways, was devised by Piero Puricelli and

1904-431: The general public: for example farm roads which the owner may use for any purpose but for which the general public only has a right of use on foot or horseback. The status of highway on most older roads has been gained by established public use, while newer roads are typically dedicated as highways from the time they are adopted (taken into the care and control of a council or other public authority). In England and Wales,

1960-855: The governments that typically develop and maintain them. Australia's Highway 1 is the longest national highway in the world at over 14,500 kilometres (9,000 mi) and runs almost the entire way around the continent. China has the world's largest network of highways, followed closely by the United States. Some highways, like the Pan-American Highway or the European routes , span multiple countries. Some major highway routes include ferry services, such as US Route 10 , which crosses Lake Michigan . Traditionally highways were used by people on foot or on horses . Later they also accommodated carriages , bicycles and eventually motor cars , facilitated by advancements in road construction . In

2016-416: The greatest extent possible during the EIS process. Proceeding in this fashion helps avoid interagency conflicts and potential lawsuits after the lead agency reaches its decision. On exceptionally large projects, especially proposed highway , railroad , and utility corridors that cross long distances, the lead agency may use a two-tiered process prior to implementing the proposed action. In such cases,

2072-463: The negative ones—is a part of transport economics. Positive externalities of transport networks may include the ability to provide emergency services , increases in land value and agglomeration benefits . Negative externalities are wide-ranging and may include local air pollution , noise pollution , light pollution , safety hazards , community severance and congestion . The contribution of transport systems to potentially hazardous climate change

2128-513: The network. In South Korea , in February 1995 a bus lane (essentially an HOV -9) was established between the northern terminus and Sintanjin for important holidays and on 1 July 2008 bus lane enforcement between Seoul and Osan (Sintanjin on weekends) became daily between 6 a.m. and 10 p.m. On 1 October this was adjusted to 7 a.m. to 9 p.m. weekdays, and 9 a.m. to 9 p.m. weekends. In Hong Kong , some highways are set up with bus lanes to solve

2184-432: The number of intersections. They can also reduce the use of public transport , indirectly leading to greater pollution. High-occupancy vehicle lanes are being added to some newer/reconstructed highways in the United States and other countries around the world to encourage carpooling and mass transit. These lanes help reduce the number of cars on the highway and thus reduces pollution and traffic congestion by promoting

2240-659: The planning stage, this extra traffic may lead to the new road becoming congested sooner than would otherwise be anticipated by considering increases in vehicle ownership. More roads allow drivers to use their cars when otherwise alternatives may have been sought, or the journey may not have been made, which can mean that a new road brings only short-term mitigation of traffic congestion. Where highways are created through existing communities, there can be reduced community cohesion and more difficult local access. Consequently, property values have decreased in many cutoff neighborhoods, leading to decreased housing quality over time. Mostly in

2296-415: The political process. The differences that exist between science and politics limit the accuracy of an EIS. Although analysts are members of the scientific community, they are affected by the political atmosphere. Analysts do not have the luxury of an unlimited time for research. They are also affected by the different motives behind the research of the EIS and by different perspectives of what constitutes

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2352-690: The proposal. Interstate 69 in Kentucky Too Many Requests If you report this error to the Wikimedia System Administrators, please include the details below. Request from 172.68.168.237 via cp1104 cp1104, Varnish XID 208938798 Upstream caches: cp1104 int Error: 429, Too Many Requests at Thu, 28 Nov 2024 07:48:59 GMT Highway A highway is any public or private road or other public way on land. It includes not just major roads, but also other public roads and rights of way . In

2408-437: The public and gather the best available information in a single place so that decision makers can be fully informed when they make their choices. This is the process of EIS Environmental Impact Statement Often, the agencies responsible for preparing an EA or EIS do not compile the document directly, but outsource this work to private-sector consulting firms with expertise in the proposed action and its anticipated effects on

2464-426: The roads around the world each year and was the leading cause of death among children 10–19 years of age. The report also noted that the problem was most severe in developing countries and that simple prevention measures could halve the number of deaths. For reasons of clear data collection, only harm involving a road vehicle is included. A person tripping with fatal consequences or dying for some unrelated reason on

2520-534: The safety performance of roads and streets, and methods used to reduce the harm (deaths, injuries, and property damage) on the highway system from traffic collisions . It includes the design, construction and regulation of the roads , the vehicles used on them and the training of drivers and other road-users. A report published by the World Health Organization in 2004 estimated that some 1.2 million people were killed and 50 million injured on

2576-634: The same vehicle volumes. This is because high, constant-speed operation creates an emissions reduction compared to vehicular flows with stops and starts. However, concentrations of air pollutants near highways may be higher due to increased traffic volumes. Therefore, the risk of exposure to elevated levels of air pollutants from a highway may be considerable, and further magnified when highways have traffic congestion . New highways can also cause habitat fragmentation , encourage urban sprawl and allow human intrusion into previously untouched areas, as well as (counterintuitively) increasing congestion, by increasing

2632-488: The use of dual carriageways with two or more lanes on each carriageway, and grade-separated junctions with other roads and modes of transport. These features are typically present on highways built as motorways ( freeways ). The general legal definition deals with right of use, not the form of construction; this is distinct from e.g. the popular use of the word in the US. A highway is defined in English common law by

2688-445: The use of carpooling in order to be able to use these lanes. However, they tend to require dedicated lanes on a highway, which makes them difficult to construct in dense urban areas where they are the most effective. To address habitat fragmentation, wildlife crossings have become increasingly popular in many countries. Wildlife crossings allow animals to safely cross human-made barriers like highways. Road traffic safety describes

2744-837: The usual principle that a road available to vehicular traffic was also available to horse or pedestrian traffic as is usually the only practical change when non-motorways are reclassified as special roads . The first section of motorway in the UK opened in 1958 (part of the M6 motorway) and then in 1959 the first section of the M1 motorway . Often reducing travel times relative to city or town streets, highways with limited access and grade separation can create increased opportunities for people to travel for business, trade or pleasure and also provide trade routes for goods. Highways can reduce commute and other travel time but additional road capacity can also release latent traffic demand . If not accurately predicted at

2800-592: The wake of the I-35W Mississippi River Bridge Collapse . NEPA does not prohibit the federal government or its licensees/permittees from harming the environment, instead it requires that the prospective impacts be understood and disclosed in advance. The intent of NEPA is to help key decisionmakers and stakeholders balance the need to implement an action with its impacts on the surrounding human and natural environment, and provide opportunities for mitigating those impacts while keeping

2856-456: The word "highway" is sometimes used to denote any public way used for travel, whether a "road, street, and parkway"; however, in practical and useful meaning, a "highway" is a major and significant, well-constructed road that is capable of carrying reasonably heavy to extremely heavy traffic. Highways generally have a route number designated by the state and federal departments of transportation. California Vehicle Code, Sections 360, 590, define

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2912-576: Was constructed on Long Island, New York, and known as the Long Island Motor Parkway or the Vanderbilt Motor Parkway. It was completed in 1911. It included many modern features, including banked turns , guard rails and reinforced concrete tarmac . Traffic could turn left between the parkway and connectors, crossing oncoming traffic, so it was not a controlled-access highway (or "freeway" as later defined by

2968-483: Was estimated to cost $ 27 billion in 1955 (equivalent to $ 240 billion in 2023 ). China's highway network is the second most extensive in the world, with a total length of about 3,573,000 kilometres (2,220,000 mi). China's expressway network is the longest Expressway system in the world, and it is quickly expanding, stretching some 85,000 kilometres (53,000 mi) at the end of 2011. In 2008 alone, 6,433 kilometres (3,997 mi) expressways were added to

3024-566: Was inaugurated in 1924. This highway, called autostrada , contained only one lane in each direction and no interchanges. The Southern State Parkway opened in 1927, while the Long Island Motor Parkway was closed in 1937 and replaced by the Northern State Parkway (opened 1931) and the contiguous Grand Central Parkway (opened 1936). In Germany, construction of the Bonn-Cologne Autobahn began in 1929 and

3080-626: Was opened in 1932 by Konrad Adenauer , then the mayor of Cologne . Soon the Autobahn was the first limited-access, high-speed road network in the world, with the first section from Frankfurt am Main to Darmstadt opening in 1935. In the US, the Federal Aid Highway Act of 1921 (Phipps Act) enacted a fund to create an extensive highway system. In 1922, the first blueprint for a national highway system (the Pershing Map )

3136-576: Was published. The Federal Aid Highway Act of 1956 allocated $ 25 billion for the construction of the 66,000-kilometre-long (41,000 mi) Interstate Highway System over a 20-year period. In Great Britain , the Special Roads Act 1949 provided the legislative basis for roads for restricted classes of vehicles and non-standard or no speed limits applied (later mostly termed motorways but now with speed limits not exceeding 70 mph); in terms of general road law this legislation overturned

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