Highway Data Element Dictionary
Highway Data Element Dictionary
This is list of data elements and their attributes that are used by data assets at the Federal Highway Administration.
Columns
| Name | Socrata field name | Column name in sgr mount | Data type | Description |
|---|---|---|---|---|
| Precision Number | precision_number | precision_number | Number | The number of decimal places permitted in any associated data element values. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Precision+Number |
| Data Asset Name | data_asset_name | data_asset_name | Text | The name of the data asset or data set. A data asset is collection of data elements or datasets that make sense to group together. A given Data Asset may represent an entire database consisting of multiple distinct entity classes, or may represent a single entity class. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Data+Asset+Name |
| Unit of Measure | unit_of_measure | unit_of_measure | Text | Magnitude for some quantity, either physical or immaterial. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Unit+of+Measure |
| Data Asset Abbreviation | data_asset_abbreviation | data_asset_abbreviation | Text | The abbreviation for the data asset or data set. A data asset is collection of data elements or datasets that make sense to group together. A given Data Asset may represent an entire database consisting of multiple distinct entity classes, or may represent a single entity class. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Data+Asset+Abbreviation |
| Maximum Length | maximum_length | maximum_length | Number | This field is the maximum number of units of length, where units of length varies depending on the type that is being derived from. The value of maxLength must be a nonNegativeInteger. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Maximum+Length |
| Data Type Code | data_type_code | data_type_code | Text | The format used for the collection of letters, digits, and/or symbols, to depict values of a data element, determined by the operations that may be performed on a data element. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Data+Type+Code |
| Preferred Physical Name | preferred_physical_name | preferred_physical_name | Text | This is the preferred name for physical models or data definition language (DDL). https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Preferred+Physical+Name |
| Data Element Name | data_element_name | data_element_name | Text | Unit of data that is considered in context to be indivisible. A Data Element is considered to be a basic unit of data of interest to an organization. It is a unit of data for which the definition, identification, representation, and permissible values are specified by means of a set of attributes. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Data+Element+Name |
| System Number | system_number | system_number | Text | This is the number of systems the data element is used. The current systems that have been crosswalked are FMIS, HPMS, TMAS, and LTPP. |
| Subject Category Code | subject_category_code | subject_category_code | Text | This is the primary high-level taxonomy subject category for the data element. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Subject+Category+Code |
| Business Owner Name | business_owner_name | business_owner_name | Text | The organization and contact within the organization that is responsible for the definition and other mandatory attributes by which the metadata item is specified. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Business+Owner+Name |
| Description Text | description_text | description_text | Text | The definition text is a statement hich specifies the meaning of the Data Element. It may additionally record a source for the text. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Description+Text |
| Pattern Text | pattern_text | pattern_text | Text | Pattern is a constraint on the value space of a datatype which is achieved by constraining the lexical space to literals which match a specific pattern. The value of pattern should be a regular expression. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Pattern+Number |
| Value Domain | value_domain | value_domain | Text | Value Domain is a class each instance of which models a value domain, a collection of permissible values. A value domain provides representation, but has no implication as to what data element concept the values are associated with, nor what the values mean. Permissible values are designations, bindings of signs (values) to their corresponding value meanings. https://data.transportation.gov/resource/3enx-g69f.csv?data_element_name=Value+Domain |