Weigh in Motion (WIM)

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Federal Highway Administration (FHWA)

Originator:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Publication_Date: 2006

Title: Weigh in Motion (WIM)

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Washington, DC

Publisher:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Online_Linkage: <http://www.bts.gov/programs/geographic_information_services/>

Larger_Work_Citation:

Citation_Information:

Originator:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Publication_Date: 2006

Title: National Transportation Atlas Databases (NTAD) 2006

Publication_Information:

Publication_Place: Washington, DC

Publisher:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Online_Linkage: <http://www.bts.gov/programs/geographic_information_services/>

Description:

Abstract:

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

Purpose:

The GIS Traffic Stations database provides structural linkages between the National Highway Planning Network Weigh In Motion (WIM), and Automatic Traffic Count Stations (ATR)

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2006

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -159.378753

East_Bounding_Coordinate: -65.760962

North_Bounding_Coordinate: 68.665416

South_Bounding_Coordinate: 18.065477

Keywords:

Theme:

Theme_Keyword_Thesaurus: points

Theme_Keyword: ATR

Theme_Keyword: WIM

Theme_Keyword: Weigh Station

Theme_Keyword: Traffic

Theme_Keyword: Weigh in motion

Theme_Keyword: Automatic Traffic Recoder

Theme_Keyword: WIM

Theme_Keyword: Weigh in Motion

Place:

Place_Keyword_Thesaurus: country

Place_Keyword: USA

Place:

Place_Keyword_Thesaurus: America

Place:

Place_Keyword_Thesaurus: United States of America

Stratum:

Stratum_Keyword_Thesaurus: land

Stratum_Keyword: ground

Temporal:

Temporal_Keyword_Thesaurus: year

Temporal_Keyword: 2006

Access_Constraints: None

Use_Constraints: None

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Federal Highway Administration (FHWA)

Contact_Person: David L. Jones

Contact_Position: Transportation Specialist

Contact_Address:

Address_Type: mailing and physical address

Address: 400 7th St. SW Room 3306

City: Washington

State_or_Province: DC

Postal_Code: 20590

Country: USA

Contact_Voice_Telephone: 202.366.5053

Contact_Facsimile_Telephone: 202.366.7742

Contact_Electronic_Mail_Address: david.jones@fhea.dot.gov

Security_Information:

Security_Classification: Unclassified

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722

Cross_Reference:

Citation_Information:

Originator:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Publication_Date: 2006

Title: National Transportation Atlas Databases (NTAD) 2006

Publication_Information:

Publication_Place: Washington, DC

Publisher:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Online_Linkage: <http://www.bts.gov/programs/geographic_information_services/>

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Attribute information for Weigh in Motion (WIM) sites was processed separately from the effort to spatially locate these sites. The attribute information for all WIM sites in the US was provided in an excel spreadsheet by the FHWA to RITA. The FHWA collects WIM data from the State Departments of Transportation (DOT) on a monthly basis.

Weigh Station attributes were obtained from the individual State DOTs, University of Tennessee data, National Highway Planning Network, Federal Highway Administration, and RITA (Research and Innovative Technology Administration). All records were assigned the accurate state name, state abbreviation, state FIPS code and county FIPS code.

Logical_Consistency_Report: Uniqueness of entity Ids are verified by computer algorithm.

Completeness_Report:

The data are as complete as possible. There are approximately 492 stations that could not be located due to a poor location description.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The elements of the GIS Traffic Stations have been conflated to the 1:100,000NHPN v4.0 data set which maintains a nominal accuracy of at least ±80 meters. Where no NHPN roads exist, the station was located using text description or teleatlas data.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

The elements of the GIS Traffic Stations have been conflated to the 1:100,000 NHPN v4.0 data set which maintains a nominal accuracy of at least ±80 meters. Where no NHPN roads exist, the station was located using text description or Teleatlas data.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Federal Highway Administrations (FHWA)

Originator: State Departments' of Transportation

Originator:

University of Tennessee Center for Transportation Research (UTCTR)

Publication_Date: 2006

Title: Weight Stations

Type_of_Source_Media: computer program

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2006

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Weight Stations

Source_Contribution:

WIM/ATR site information, as reported by State DOTs to the FHWA, may consist of multiple data collecting stations for a single site, each identified by a unique identifier (ID).

Source_Information:

Source_Citation:

Citation_Information:

Originator: FHWA

Originator: State Departments' of Transportation

Publication_Date: 2006

Title: WIM Attributes

Type_of_Source_Media: computer program

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2006

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: WIM Station Attribute

Source_Contribution:

WIM site information, as reported by State DOTs to the FHWA, may consist of multiple data collecting stations for a single site, each identified by a unique identifier (ID). WIM sites can be considered a complex of stations that make up the site. Multiple stations can be grouped together or associated to a single site through the ID. Common reasons for multiple stations for a single site are that each station represents a different direction or travel for that location, or multiple roads (sometimes each road will be a different Functional Classification) intersecting the site's location. Where multiple stations existed, for a given WIM site, FHWA summarized these to one station for the data it provide to RITA. This data was submitted to RITA, from the FHWA, in an excel spreadsheet.

Process_Step:

Process_Description:

The station location description for each station type WIM, ATR, and Classification was used to manually adjust a station to the National Highway Planning Network (NHPN) v4.0. Any stations that could not be located on the NHPN were located on TIGER 99. Any stations that could not be located due to poor location descriptions are contained in the exception data table delivered with the GIS Traffic Stations.

Source_Used_Citation_Abbreviation: UTCTR

Source_Used_Citation_Abbreviation: FHWA

Source_Used_Citation_Abbreviation: NHPN

Process_Date: 2001

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: FHWA Office of Highway Policy Information

Contact_Person: David Jones

Contact_Position: Transportation Specialist

Contact_Address:

Address_Type: mailing and physical address

Address: 400 7th Street SW

City: Washington

State_or_Province: DC

Postal_Code: 20590

Country: USA

Contact_Voice_Telephone: 202.366.5053

Contact_Facsimile_Telephone: 202.366.7742

Contact_Electronic_Mail_Address: david.jones@fhwa.dot.gov

Process_Step:

Process_Description:

Weigh Station collection began with FHWA delivering all new weigh station points ot RITA. Also acquried was the older University of Tennessee dataset to use as a comparison with new FHWA data. Analysis of data began by comparing the two datasets. All duplicate points were elimitnated from the new FHWA dataset. Once a final dataset was complete, a state-by-state analysis began. As each state's database was populated differently, analysis varied from state to state. Process steps included indentifying county code per point. Determine broad location of road segment using LRS Id. Value could then be tied into the LRSKEY value on road segments. If no LRS ID was provided, HPMS values were also used to determine location. Finally, an exact point was determined by using the provided text description within the location field. Once exact location was determined, edit session was begun and the point was manually created. After all points were populated, the latitude and longitude fields were calculated using a script in an edit session. The resulting dataset was then made into a shapefile.

Source_Used_Citation_Abbreviation: RITA/BTS

Process_Date: 2006

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Contact_Person: Geospatial Information Program

Contact_Address:

Address_Type: mailing and physical address

Address: 400 7th Street, S.W.

City: Washington

State_or_Province: DC

Postal_Code: 20590

Country: USA

Contact_Voice_Telephone: 202-366-DATA

Contact_Facsimile_Telephone: 202-366-3640

Contact_Electronic_Mail_Address: answers@bts.gov

Process_Step:

Process_Description:

The attribute data for each WIM site consisted of 13 records. Each record represented a different vehicle classification. A volume count and average weight, where appropriate, was recorded for each vehicle classification for that site. These data were further categorized by State, and by year the data was submitted to the FHWA. The processing of the data was straight forward; summarize the 13 records for a given site to a single record and join this record to the existing spatial database of WIM sites. This was accomplished with the following process steps: Step 1 - Where multiple stations existed for a single site, FHWA distilled these to a single station for that site (each station has 13 records representing a different vehicle classification). In some cases, not all stations for a site were captured by the FHWA before the data was delivered to RITA. In these cases RITA had to conduct special processing to distill these to a single station for the site. Step 2 - In general, each site had 13 records. Each record represented a different classification of vehicle. Each record had a vehicle volume count for that classification and what percentage of the total volume it represented. Vehicle classes 1- 4 were passenger vehicles (i.e. cars), and classes 5 - 13 were trucks. This last group had average weight recorded when available. These 13 records were summarized to one record for the site. This processes consisted of separating truck and passenger vehicle volumes into different fields for the representative record of all vehicle classifications for that site. Truck and passenger volumes for the site were added together to obtain its total vehicle volume. All of the average gross vehicle weights were summarized. Total trucks were divided by total vehicle volume to obtain percent truck. This was added to the database. Truck volume was deleted from the database. Step 4 - The processed attribute record for the WIM site was joined to the spatial data. Redundant fields were deleted.

Source_Used_Citation_Abbreviation: RITA/BTS

Process_Date: 2006

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Contact_Person: Geospatial Information Program

Contact_Address:

Address_Type: mailing and physical address

Address: 400 7th Street, S.W.

City: Washington

State_or_Province: DC

Postal_Code: 20590

Country: USA

Contact_Voice_Telephone: 202-366-DATA

Contact_Facsimile_Telephone: 202-366-3640

Contact_Electronic_Mail_Address: answers@bts.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 5553

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000001

Longitude_Resolution: 0.000001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984

Ellipsoid_Name: WGS_1984

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: wim

Entity_Type_Definition: Points

Entity_Type_Definition_Source: University of Tennesse/FHWA

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: STTNKEY

Attribute_Definition:

Unique Station Identifier: Concatenated State FIPS code and Unique Station ID

Attribute_Definition_Source: State DOTs

Attribute_Domain_Values:

Unrepresentable_Domain: IDs Assigned by State DOTs .

Attribute:

Attribute_Label: NHS

Attribute_Definition:

Indicates whether the section is on the National Highway System (NHS) or is an NHS connector to an intermodal facility.

Attribute_Definition_Source: HPMS Field Manual

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0

Enumerated_Domain_Value_Definition: Section is not on the NHS

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 1

Enumerated_Domain_Value_Definition: Section is on the NHS, but is not a NHS intermodal connector

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 2

Enumerated_Domain_Value_Definition: NHS Intermodal Connector - Major Airport

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 3

Enumerated_Domain_Value_Definition: NHS Intermodal Connector - Major Port Facility

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 4

Enumerated_Domain_Value_Definition: NHS Intermodal Connector - Major Amtrak Station

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 5

Enumerated_Domain_Value_Definition: NHS Intermodal Connector - Major Rail/Truck Terminal

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 6

Enumerated_Domain_Value_Definition: NHS Intermodal Connector - Major Intercity Bus Terminal

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 7

Enumerated_Domain_Value_Definition:

NHS Intermodal Connector - Major Public Transit or Multi-Modal Passenger Terminal

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 8

Enumerated_Domain_Value_Definition: NHS Intermodal Connector - Major Pipeline Terminal

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 9

Enumerated_Domain_Value_Definition: NHS Intermodal Connector - Major Ferry Terminal

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Attribute:

Attribute_Label: LOCATION

Attribute_Definition: Station Location Description

Attribute_Definition_Source: FHWA

Attribute_Domain_Values:

Unrepresentable_Domain: Character value

Attribute:

Attribute_Label: CONFIDENCE

Attribute_Definition:

Confidence that point was created correctly using the data provided

Attribute_Definition_Source: FHWA

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1

Enumerated_Domain_Value_Definition: low confidence

Enumerated_Domain_Value_Definition_Source: FHWA

Enumerated_Domain:

Enumerated_Domain_Value: 2

Enumerated_Domain_Value_Definition: confident

Enumerated_Domain_Value_Definition_Source: FHWA

Enumerated_Domain:

Enumerated_Domain_Value: 3

Enumerated_Domain_Value_Definition: highly confident

Enumerated_Domain_Value_Definition_Source: FHWA

Attribute:

Attribute_Label: COMMENT

Attribute_Definition: Notes on point creation and relationship to location

Attribute_Definition_Source: UTN, State DOT & RITA/BTS

Attribute_Domain_Values:

Unrepresentable_Domain: Character value

Attribute:

Attribute_Label: LONGITUDE

Attribute_Definition:

The longitude of the point expressed as a signed real number. This value is in decimal degrees with negative values indicating West longitude and positive values indicating East longitude.

Attribute_Definition_Source: RITA/BTS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 180 West

Range_Domain_Maximum: 180 East

Attribute:

Attribute_Label: LATITUDE

Attribute_Definition:

The latitude of the point expressed as a signed real number. This value is in decimal degrees with negative values indicating South latitude and positive values indicating North latitude.

Attribute_Definition_Source: RITA/BTS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 90 South

Range_Domain_Maximum: 90 North

Attribute:

Attribute_Label: YEAR_GEO

Attribute_Definition: Year the location was spatial located

Attribute_Definition_Source: UTN, State DOT & RITA/BTS

Attribute_Domain_Values:

Unrepresentable_Domain: Numeric value

Attribute:

Attribute_Label: YEAR_ATT

Attribute_Definition: Year the attribute data was collected

Attribute_Definition_Source: FHWA & State DOTs

Attribute_Domain_Values:

Unrepresentable_Domain: Numeric value

Attribute:

Attribute_Label: FCLASS

Attribute_Definition: The functional system upon which the section is located.

Attribute_Definition_Source: HPMS Field Manual

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1

Enumerated_Domain_Value_Definition: Rural Principal Arterial - Interstate

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 2

Enumerated_Domain_Value_Definition: Rural Principal Arterial - Other

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 6

Enumerated_Domain_Value_Definition: Rural Minor Arterial

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 7

Enumerated_Domain_Value_Definition: Rural Major Collector

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 8

Enumerated_Domain_Value_Definition: Rural Minor Collector

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 9

Enumerated_Domain_Value_Definition: Rural Local

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 11

Enumerated_Domain_Value_Definition: Urban Principal Arterial - Interstate

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 12

Enumerated_Domain_Value_Definition: Urban Principal Arterial - Other Freeways and Expressways

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 14

Enumerated_Domain_Value_Definition: Urban Principal Arterial - Other

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 16

Enumerated_Domain_Value_Definition: Urban Minor Arterial

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 17

Enumerated_Domain_Value_Definition: Urban Collector

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Enumerated_Domain:

Enumerated_Domain_Value: 19

Enumerated_Domain_Value_Definition: Urban Local

Enumerated_Domain_Value_Definition_Source: HPMS Field Manual

Attribute:

Attribute_Label: PASSVEHVOL

Attribute_Definition:

The estimate (for Passenger Vehicles Only) of typical traffic on a road segment for all days of the week, Sunday through Saturday, over the period of one year and calculated from permanent counter data as the sum of Monthly Average Daily Traffic (MADTs) divided by the number of MADTs, and for short term counts by using adjustment factors.

Attribute_Definition_Source: FHWA

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Passenger Vehicle AADT

Codeset_Source: FHWA

Attribute:

Attribute_Label: TOTVEHVOL

Attribute_Definition:

The estimate of typical traffic (for all Vehicles) on a road segment for all days of the week, Sunday through Saturday, over the period of one year and calculated from permanent counter data as the sum of Monthly Average Daily Traffic (MADTs) divided by the number of MADTs, and for short term counts by using adjustment factors.

Attribute_Definition_Source: FHWA

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Total Vehicle AADT

Codeset_Source: FHWA

Attribute:

Attribute_Label: PERTRUCK

Attribute_Definition: Percentage of AADT that were Trucks.

Attribute_Definition_Source: FHWA

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Summation of Gross Vehicle Weight (in Metric Tons)

Codeset_Source: FHWA

Attribute:

Attribute_Label: SUMAVGVW

Attribute_Definition:

Summation of the average gross vehicle weight for trucks including all connected components (in Metric Tons)

Attribute_Definition_Source: FHWA

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Summation of Gross Vehicle Weight (in Metric Tons)

Codeset_Source: FHWA

Attribute:

Attribute_Label: STFIPS

Attribute_Definition: State FIPS Code

Attribute_Definition_Source: FHWA Station Description Files

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Federal Information Processing Standard- FIPS Pub 6-4

Codeset_Source: National Institute for Standards and Technology (NIST)

Attribute:

Attribute_Label: CTFIPS

Attribute_Definition: 3 digit code for where the point resides

Attribute_Definition_Source: Federal Information Processing Standards

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Federal Information Processing Standard- FIPS Pub 6-4

Codeset_Source: National Institute for Standards and Technology (NIST)

Attribute:

Attribute_Label: VERSION

Attribute_Definition: Version of the database

Attribute_Definition_Source: RITA/BTS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 00

Range_Domain_Maximum: 99

Attribute:

Attribute_Label: REVISION

Attribute_Definition: Revision of the database

Attribute_Definition_Source: RITA/BTS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 00

Range_Domain_Maximum: 99

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Research and Innovative Technology Administration (RITA/BTS)

Contact_Person: Geospatial Information Program

Contact_Address:

Address_Type: mailing and physical address

Address: 400 7th Street, SW Room 4117

City: Washington

State_or_Province: District of Columbia

Postal_Code: 20590

Country: USA

Contact_Voice_Telephone: 202-366-DATA

Contact_Facsimile_Telephone: 202-366-3640

Contact_Electronic_Mail_Address: answers@bts.gov

Resource_Description: National Transportation Database (NTAD) 2006

Distribution_Liability: None

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ESRI Shapefile

Format_Version_Date: 2006

File_Decompression_Technique:

No compression applied. However, if using digital transfer online option, note access instructions.

Transfer_Size: 0.148

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Access_Instructions:

Due to a significant reduction in resources, the NTAD is no longer available for download. The NTAD cdrom can be ordered from the online bookstore at www.bts.gov. If resources allow, download applications will be restored. When the applications become available, they will be found at www.bts.gov/programs/geographic_information_services.

Offline_Option:

Offline_Media: CD-ROM

Recording_Capacity:

Recording_Density: 650

Recording_Density_Units: megabytes

Recording_Format: ISO 9660

Fees: None

Ordering_Instructions:

Call 202-366-DATA, fax 202-366-3640, or E-mail (answers@bts.gov) RITA/BTS to request the National Transportation Atlas Databases (NTAD) 2006 CD-ROM. This and other RITA/BTS products may be ordered from the RITA/BTS Internet website <http://www.bts.gov/programs/geographic_information_services/>.

Technical_Prerequisites: Software that can process GIS files.

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2006

Metadata_Reference_Information:

Metadata_Date: 20060427

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Contact_Person: Geospatial Information Program

Contact_Address:

Address_Type: mailing and physical address

Address: 400 7th Street, SW Room 4117

City: Washington

State_or_Province: District of Columbia

Postal_Code: 20590

Country: USA

Contact_Voice_Telephone: (202) 366-DATA

Contact_Facsimile_Telephone: (202) 366-3640

Contact_Electronic_Mail_Address: answers@bts.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile