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Skip Navigation LinksMerger Process Glossary
This list contains Merger Progress terms and definitions.

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Section 401 of the Clean Water Act requires the states to issue a 401 Water Quality Certification for all projects that require a Federal Permit (such as a Section 404 Permit). The "401" is essentially a verification by the state that a given project will not degrade Waters of the State or otherwise violate water quality standards.
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A reduction in the degree or intensity of traffic and other noise sources through various forms of 'mitigative' measures, such as noise barriers or walls.
 
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Usually a metal, fiberglass or plastic storage tank generally considered to be containing a oil, gasoline or other hazardous material which is located at or near the ground surface (See Underground Storage Tank).
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Under the Merger Process, abstain means that a team member does not actively object to a concurrence point but the agency representative does not sign the concurrence point form. The process may continue and the agency representative agrees not to revisit the concurrence point. Written justification for abstaining from a concurrence point should be provided to the project team within 5 days of the concurrence meeting.
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The ability to reach or connect to another mode of transportation from an existing mode of transportation or an individual property (source: Strategic Highway Corridors Glossary; April 22, 2005).
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[See Control of Access].
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The planning, design, and implementation of land use and transportation strategies that maintain a safe flow of traffic while accommodating the access needs of adjacent development. The goal of Access Management is to balance the need to provide efficient, safe, and timely travel with the desired ability to allow access to the individual destination (source: Strategic Highway Corridors Glossary; April 22, 2005).
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The planning, design, and implementation of land use and transportation strategies that maintain a safe flow of traffic while accommodating the access needs of adjacent development. The goal of Access Management is to balance the need to provide efficient, safe, and timely travel with the desired ability to allow access to the individual destination (source: Strategic Highway Corridors Glossary; April 22, 2005).
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A plan showing the location of access (and in some cases the design) for every parcel on a major roadway segment or within an interchange area. The Plan is often jointly developed and adopted by state agencies and local jurisdictions that have control over land development in the affected area (source: Strategic Highway Corridors Glossary; April 22, 2005).
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A major item of work in a Project Schedule Network that has a definite start, finish and duration. An Activity will generally have a specific product, outcome or deliverable associated with it and can be further broken down into activity elements. An Activity will have a responsible work center to monitor completion (source: PMii Course Catalog).
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Statewide and regional centers, and areas outside North Carolina that serve a state’s citizens (source: Strategic Highway Corridors Glossary; April 22, 2005).
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A breakdown of tasks necessary to complete an activity. Each Activity Element will have planned work effort in hours, and an assigned work center and cost center. The duration and dates for Activity Elements are drawn from the scheduled start date and the finish date of its activity. Each Activity Element has an Activity Type for calculation of planned and actual costs (source: PMii Course Catalog).
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See Glossary of Environmental Laws
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General phrase referring to potentially negative impacts to certain resources, such as changes to the setting characteristics and visual changes to a historic property.
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An independent Federal agency that promotes the preservation, enhancement and productive use of our Nation's historic resources and advises the President and Congress on national historic preservation policy. There are 20 statutorily designated members.
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Photographs of the ground taken from a plane or helicopter. Usually provided in a .sid file format with a .sdw file that contains position/location data.
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The physical features, land area or areas to be influenced, or impacted, by an alternative alignment under consideration. This term also includes various social and environmental factors and conditions pertinent to an area.
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The physical features, land, area, or areas to be influenced, or impacted, by an alternative alignment under consideration. This term also includes various social and environmental factors and conditions pertinent to an area (source: Strategic Highway Corridors Glossary; April 22, 2005).
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A general term referring to the process whereby government agencies are afforded an opportunity to review and comment upon transportation proposals (source: Strategic Highway Corridors Glossary; April 22, 2005).
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See Bridge Replacement Process III
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Land that includes: arable land, land under permanent crops and land under permanent meadows and pastures (source: Interagency Leadership Team – Goal #1 Glossary).
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Substances in the air that could, at high enough concentrations, harm human beings, animals, vegetation or inanimate objects. Air pollutants may include forms of matter of almost any natural or artificial composition capable of being airborne. They may consist of solid particles, liquid droplets or gases, or combinations of these forms (source: Strategic Highway Corridors Glossary; April 22, 2005).
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Substances in the air (generally considered man-made in origin) that could, at high enough concentrations, harm humans, animals, vegetation or materials. Five major air pollutants generally involving transportation projects include (ground-level) ozone, particulate matter, carbon monoxide, sulfur dioxide and nitrogen dioxide.
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A general subset of a Comprehensive Transportation Plan that examines human quality of life indicators such as air pollution associated with transportation projects and traffic noise.
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The AQI is an index for reporting daily air quality. There are six categories with AQI values ranging from 0 to 500, levels of health concern between good and hazardous and their corresponding colors of green, yellow, orange, red, purple and maroon. The AQI focuses on five major air pollutants: (ground-level) ozone, particulate matter, carbon monoxide, sulfur dioxide and nitrogen dioxide.
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Levels of air pollutants prescribed by regulations that may not be exceeded during a specified time in a defined area. EPA establishes national air quality standards for major pollutants, including (ground-level) ozone, particulate matter, carbon monoxide, sulfur dioxide and nitrogen dioxide.
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Arrangement or position in a straight line or in parallel lines and to diverge from the vertical or horizontal; incline (source: http://dictionary.reference.com).
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General phrase referring to an improvement and/or adjustment to a highway alignment to potentially avoid or minimize impacts to the environment or to correct a design deficiency.
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One of a number of specific transportation improvements proposals, alignments, options, design choices, etc., in a defined study area.
 
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The ability of any vehicle to enter a roadway indirectly through a roadway of lower classification (source: Strategic Highway Corridors Glossary; April 22, 2005).
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