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2,603 results returned

  1. Title: United States Weigh in Motion (WIM), 2008

    Contributors:

    Summary: United States Weigh in Motion (WIM), 2008 is a point theme representing weigh in motion faciliies in the United States. The data included in the GIS Traffic Stations Version database have been assimilated from station description files provided by FHWA for Weigh-in-Motion (WIM), and Automatic Traffic Counters (ATR). Location referencing information was derived from the National Highway Planning Network version 4.0. and State offices of Transportation The attributes on the point elements of the database have come from two primary sources, the Station Description Records and the National Highway Planning Network's Linear Referencing System. The attributes for these databases have been intentionally limited to location referencing attributes since the core station description attribute data are contained within the Station Description Tables (SDT). There is a separate Station Description Table (SDT) for each of the different station types; WIM, and ATR. The attributes in the Station Description Table correspond with the Station Description Record found in Chapter 6 of the latest Traffic Monitoring Guide. The SDT contains the most recent stations available for each state and station type. This table was derived from files provided UTCTR by FHWA. The Station Description Table can be linked to the station shapefile via the STNNKEY field . A single exception table containing records for those stations that could not be located is provided for WIM, and ATR stations. Generally, this table contains records where location descriptions were not clear enough to locate a station. It is hoped that FHWA will be able to contact the States for a more detailed description

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  2. Title: United States Automatic Traffic Recorders (ATR), 2008

    Contributors:

    Summary: Automatic Traffic Recorders (ATR) is a point theme representing Weigh-in-Motion (WIM), and Automatic Traffic Counters (ATR) in the United States The data included in the GIS Traffic Stations Version database have been assimilated from station description files provided by FHWA for Weigh-in-Motion (WIM), and Automatic Traffic Counters (ATR). Location referencing information was derived from the National Highway Planning Network version 4.0. and State offices of Transportation The attributes on the point elements of the database have come from two primary sources, the Station Description Records and the National Highway Planning Network's Linear Referencing System. The attributes for these databases have been intentionally limited to location referencing attributes since the core station description attribute data are contained within the Station Description Tables (SDT). There is a separate Station Description Table (SDT) for each of the different station types; WIM, and ATR. The attributes in the Station Description Table correspond with the Station Description Record found in Chapter 6 of the latest Traffic Monitoring Guide. The SDT contains the most recent stations available for each state and station type. This table was derived from files provided UTCTR by FHWA. The Station Description Table can be linked to the station shapefile via the STNNKEY field . A single exception table containing records for those stations that could not be located is provided for WIM, and ATR stations. Generally, this table contains records where location descriptions were not clear enough to locate a station. It is hoped that FHWA will be able to contact the States for a more detailed description

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  3. Title: Federal Aid Urbanized Area Boundaries

    Contributors:

    Summary: The Federal Aid Urbanized Area Boundaries database is a geographic database of Federal-aid boundaries for urban areas with a population greater than 50,000. The database includes boundaries for urban areas in all 50 states, the District of Columbia, and Puerto Rico.

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  4. Title: USA (Freight Analysis Framework (FAF) Network, 2003)

    • Line data
    • 2003
    Contributors:

    Summary: The spatial component of the FAF network is derived from National Highway Planning Network Version 3.0 and contains National Highway System (NHS), National Network (NN). It also contains 3,436 of non-roadway dummy links. The network consists of over 274,154 miles of equivalent road mileage. The data set covers the 48 contiguous States plus the District of Columbia. The nominal scale of the data set is 1:100,000 with a maximal positional error of ±80 meters.

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  5. Title: United States Metropolitan Planning Organizations, 2103

    Contributors:

    Summary: The United States Metropolitan Planning Organization database is a geographic database of Metropolitan Planning Organization political boundaries.

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  6. Title: United States Freight Analysis Frameworks, 2008

    Contributors:

    Summary: Freight Analysis Framework is a line theme representing National Highway System (NHS), National Network (NN) and several intermodal connectors as appropriate for the freight network modeling in the United States. "Freight Analysis Framework 2.2 Network Machine Readable Data Files" are distributed by the Federal Highway Administration Office of Freight Management and Operations, Operations Core Business Unit, Washington DC, 2007

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  7. Title: United States Metropolitan Planning Organization Boundaries, 2008

    Contributors:

    Summary: Metropolitan Planning Organization Boundaries is a polygon theme representing the boundaries of metropolitan planning organizations in the United States

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  8. Title: National Bridge Inventory: United States, 2011

    Contributors:

    Summary: This point shapefile depicts the more than 600,000 of the United States' bridges located on public roads, including interstate highways, United States highways, state and county roads, as well as publicly-accessible bridges on federal lands. It presents a state by state summary analysis of the number, location and general condition of highway bridges within each state. This layer is part of the 2014 National Transportation Atlas Database. The National Transportation Atlas Databases 2014 (NTAD2014) is a set of nationwide geographic datasets of transportation facilities, transportation networks, associated infrastructure and other political and administrative entities. These datasets include spatial information for transportation modal networks and intermodal terminals, as well as the re¬lated attribute information for these features. This data supports research, analysis, and decision-making across all transportation modes. It is most useful at the national level, but has major applications at regional, state and local scales throughout the transportation community. The data used to compile NTAD2014 was provided by our partners within the United States Department of Transportation (USDOT) and by other agencies throughout the United States Federal Government. These contributors are the actual data stewards and are ultimately responsible for the maintenance and accuracy of their data. The National Bridge Inventory (NBI) published by the United States Department of Transportation Federal Highway Administration documents the United States' bridge inventory. Data collected includes design of the bridge and the dimensions of the usable portion. The data is often used to analyze bridges and judge their conditions. The bridge inventory is developed with the purpose of having a unified database for bridges, including identification information, bridge types and specifications, operational conditions, bridge data including geometric data and functional description and inspection data. Any bridge more than 20 feet (6 meters) long used for vehicular traffic is included. United States. Department of Transportation. Research and Innovative Technology Administration. (2014). National Bridge Inventory: United States, 2011. National Transportation Atlas Database 2014. Available at: http://purl.stanford.edu/sh155dh7839.

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  9. Title: Metropolitan Planning Boundaries: United States and Territories, 2011

    Contributors:

    Summary: This polygon shapefile contains United States metropolitan planning boundaries. The United States Metropolitan Planning Organization (MPO) Database is a geographic database of MPO political boundaries and the associated agencies responsible for transportation planning, including data on MPO size and state Federal Information Processing Standards (FIPS) codes. This layer is part of the 2014 National Transportation Atlas Database. The National Transportation Atlas Databases 2014 (NTAD2014) is a set of nationwide geographic datasets of transportation facilities, transportation networks, associated infrastructure and other political and administrative entities. These datasets include spatial information for transportation modal networks and intermodal terminals, as well as the re¬lated attribute information for these features. This data supports research, analysis, and decision-making across all transportation modes. It is most useful at the national level, but has major applications at regional, state and local scales throughout the transportation community. The data used to compile NTAD2014 was provided by our partners within the United States Department of Transportation (USDOT) and by other agencies throughout the United States Federal Government. These contributors are the actual data stewards and are ultimately responsible for the maintenance and accuracy of their data. The Census Bureau designates a new list of Urbanized Areas (UZAs) every 10 years, following the conclusion of each decennial census. The designation of UZAs by the U.S. Census Bureau has significant implications for the metropolitan planning process. Federal transportation legislation requires that a Metropolitan Planning Organization (MPO) be designated for each urbanized area with a population of more than 50,000 people in order to carry out the metropolitan transportation planning process, as a condition of Federal aid. This data provides users with information about the locations, names and sizes of Metropolitan Planning Organizations and is intended for use primarily with national planning applications. United States. Department of Transportation. Research and Innovative Technology Administration. (2014). Metropolitan Planning Boundaries: United States and Territories, 2011. National Transportation Atlas Database 2014. Available at: http://purl.stanford.edu/gv290xm4124.

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  10. Title: Highways Network: Puerto Rico and United States, 2011

    Contributors:

    Summary: This polyline shapefile depicts the National Highway Planning Network, a comprehensive network database of the United States' major highway system. It consists of the highways comprised of Rural Arterials, Urban Principal Arterials and all National Highway System routes. The data set covers the 48 contiguous States plus the District of Columbia, Alaska, Hawaii, and Puerto Rico. The nominal scale of the data set is 1:100,000 with a maximal positional error of ±80 meters. This layer is part of the 2014 National Transportation Atlas Database. The National Transportation Atlas Databases 2014 (NTAD2014) is a set of nationwide geographic datasets of transportation facilities, transportation networks, associated infrastructure and other political and administrative entities. These datasets include spatial information for transportation modal networks and intermodal terminals, as well as the re¬lated attribute information for these features. This data supports research, analysis, and decision-making across all transportation modes. It is most useful at the national level, but has major applications at regional, state and local scales throughout the transportation community. The data used to compile NTAD2014 was provided by our partners within the United States Department of Transportation (USDOT) and by other agencies throughout the United States Federal Government. These contributors are the actual data stewards and are ultimately responsible for the maintenance and accuracy of their data. The National Highway Planning Network (NHPN) is a geospatial network database that contains line features representing just over 450,000 miles of highways in the United States. The NHPN contains geospatially referenced information on the National Highway System (NHS), the Eisenhower Interstate System, the Strategic Highway Network (STRAHNET) and NHS Intermodal Connectors. In addition to the NHS, the NHPN covers all roads functionally classified as principal arterial and rural minor arterial. The primary purpose of this geospatial data set is to serve the Federal Highway Administration (FHWA) needs in highway planning, policy analysis, visualization of the Highway Performance Monitoring System (HPMS) database and network modeling. The NHPN is the digital source used for coding and publishing the FHWA approved National Highway System maps. United States. Department of Transportation. Research and Innovative Technology Administration. (2014). Highways Network: Puerto Rico and United States, 2011. National Transportation Atlas Database 2014. Available at: http://purl.stanford.edu/cy988nc3057.

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  11. Title: Unites States Freight Analysis Framework Regions, 2013

    Contributors:

    Summary: FAF domestic region level datasets and products provide information for states, state portions of large metropolitan areas, and remainders of states. Metropolitan areas consist of Metropolitan Statistical Areas or Consolidated Statistical Areas as defined by the Office of Management and Budget. When a metropolitan area is entirely within a state or when a state's portion of a multi-state metropolitan area is large enough to support the sampling procedures in the Commodity Flow Survey, the area becomes a separate FAF region. Small single-state metropolitan areas and small portions of a multi-state metropolitan area are part of the State or Remainder of State. FAF has two metropolitan areas that are each divided into three FAF regions, four that are each divided into two FAF regions, and several that have small pieces combined with States or Remainders of States.

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  12. Title: United States National Highway Planning Network, 2013

    Contributors:

    Summary: The National Highway Planning Network is a comprehensive network database of the nation's major highway system. It consists of the nation's highways comprised of Rural Arterials, Urban Principal Arterials and all National Highway System routes. The data set covers the 48 contiguous States plus the District of Columbia, Alaska, Hawaii, and Puerto Rico. The nominal scale of the data set is 1:100,000 with a maximal positional error of ±80 meters.

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  13. Title: United States Freight Analysis Framework, 2013

    Contributors:

    Summary: The spatial component of the FAF network is derived from National Highway System Version 2009.11 and contains state primary and secondary roads, National Highway System (NHS), National Network (NN) and several intermodal connectors as appropriate for the freight network modeling. The network consists of over 447,808 miles of equivalent road mileage. The data set covers the 48 contiguous States plus the District of Columbia, Alaska, and Hawaii. The nominal scale of the data set is 1:100,000 with a maximal positional error of ±80 meters.

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  14. Title: United States Highway Performance Monitoring System, 2013

    Contributors:

    Summary: The Federal Highway Administration (FHWA) has the responsibility to assure that adequate highway transportation information is available to support its functions and responsibilities, including those of the Administration and the Congress. The primary purpose of the Highway Performance Monitoring System (HPMS) is to serve these data and information needs. The HPMS provides data that reflects the extent, condition, performance, use, and operating characteristics of the nation's highways. The HPMS by itself is not geospatial data. It is linked to another FHWA dataset, the National Highway Planning Network (NHPN), through linear referencing. The NHPN provides the geospatial component of this dataset. The hpms data on the 2013 NTAD represents 2011 hpms. 2011 is the latest complete compilation of hpms data.

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  15. Title: United States National Bridge Inventory, 2013

    Contributors:

    Summary: The NBI is a collection of information (database) describing the more than 600,000 of the Nation's bridges located on public roads, including Interstate Highways, U.S. highways, State and county roads, as well as publicly-accessible bridges on Federal lands. It presents a State by State summary analysis of the number, location, and general condition of highway bridges within each State.

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  16. Title: United States Non-Attainment Areas: Particulate Matter 2.5 24 Hour, 2013

    Contributors:

    Summary: Non-attainment and maintenance areas for the United States and its territories. For more detailed information on this dataset, see the Overview Description in the Entity Attribute section of this document.

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  17. Title: USA (MPO Boundaries, 2008)

    • Polygon data
    • 2008
    Contributors:

    Summary: The United States Metropolitan Planning Organization database is a geographic database of Metropolitan Planning Organization political boundaries.

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  18. Title: USA (Freight Analysis Framework (FAF) Network, 2007)

    • Line data
    • 2008
    Contributors:

    Summary: "Freight Analysis Framework 2.2 Network Machine Readable Data Files" are distributed by the Federal Highway Administration Office of Freight Management and Operations, Operations Core Business Unit, Washington DC, 2007

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  19. Title: USA (MPO Boundaries, 2006)

    • Polygon data
    • 2006
    Contributors:

    Summary: The United States Metropolitan Planning Organization database is a geographic database of Metropolitan Planning Organization political boundaries.

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  20. Title: Highways Features: United States, 2011

    Contributors:

    Summary: The Federal Highway Administration (FHWA) has the responsibility to assure that adequate highway transportation information is available to support its functions and responsibilities, including those of the Administration and the Congress. The primary purpose of the HPMS is to serve these data and information needs. This polyline shapefile provides data that reflects the extent, condition, performance, use and operating characteristics of United States highways. The HPMS by itself is not geospatial data. It is linked to another FHWA dataset, the National Highway Planning Network (NHPN), through linear referencing. The NHPN provides the geospatial component of this dataset. This layer is part of the 2014 National Transportation Atlas Database. The National Transportation Atlas Databases 2014 (NTAD2014) is a set of nationwide geographic datasets of transportation facilities, transportation networks, associated infrastructure and other political and administrative entities. These datasets include spatial information for transportation modal networks and intermodal terminals, as well as the re¬lated attribute information for these features. This data supports research, analysis, and decision-making across all transportation modes. It is most useful at the national level, but has major applications at regional, state and local scales throughout the transportation community. The data used to compile NTAD2014 was provided by our partners within the United States Department of Transportation (USDOT) and by other agencies throughout the United States Federal Government. These contributors are the actual data stewards and are ultimately responsible for the maintenance and accuracy of their data. The Highway Performance Monitoring System (HPMS) is a national level highway information system that includes data on the extent, condition, performance, use and operating characteristics of the nation's highways. The HPMS contains administrative and extent of system information on all public roads, while information on other characteristics is represented in HPMS as a mix of universe and sample data for arterial and collector functional systems. Limited information on travel and paved miles is included in summary form for the lowest functional systems. United States. Department of Transportation. Research and Innovative Technology Administration. (2014). Highways Features: United States, 2011. National Transportation Atlas Database 2014. Available at: http://purl.stanford.edu/ky723jt6050.

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