{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "This dataset contains the Roads and Highways Road Network Linear Referencing System (LRS) HPMS access control event polyline feature class which provides classifications for Idaho\u2019s public roadways as part of the Highway Performance Monitoring System (HPMS). The data supports transportation planning, roadway design, access management, and system performance analysis across Idaho.", "description": "

The Idaho Transportation Department's (ITD) Roads and Highways Road Network Linear Referencing System (LRS) HPMS access control event polyline feature class identifies the degree to which access to a roadway facility is controlled or limited. It reflects how entry and exit points are managed along roadway segments, which directly impacts traffic flow, safety, and operational characteristics. Each segment is categorized into one of three levels of access control: full, partial, or none. Full access control allows entry only through grade-separated interchanges; partial access control permits some at-grade intersections or driveways; and no access control allows unrestricted property access and frequent intersections. <\/SPAN><\/P>

This dataset is used for functional classification, design evaluation, access management, and network performance modeling. It supports transportation planners, engineers, and researchers in assessing corridor functionality and system efficiency. The data is maintained and updated annually as part of ITD\u2019s Highway Performance Monitoring System (HPMS) submittal process to the Federal Highway Administration (FHWA) and is verified against roadway design records and the official state highway network. Users should note that access control classifications represent the current operational status of the roadway and may change over time as corridors are upgraded or reclassified. <\/SPAN><\/P>

These are current \"working\" records. For the static, published data, please see the records stored at: <\/SPAN>https://www.fhwa.dot.gov/policyinformation/hpms.cfm<\/SPAN><\/A><\/P><\/DIV><\/DIV><\/DIV>", "summary": "This dataset contains the Roads and Highways Road Network Linear Referencing System (LRS) HPMS access control event polyline feature class which provides classifications for Idaho\u2019s public roadways as part of the Highway Performance Monitoring System (HPMS). The data supports transportation planning, roadway design, access management, and system performance analysis across Idaho.", "title": "Roads and Highways - HPMS Access Control", "tags": [ "Transportation", "Roads and Highways", "Linear Referencing System", "LRS", "Road Network", "Highway Performance Monitoring System", "HPMS" ], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 20000000, "maxScale": 5000, "spatialReference": "", "accessInformation": "This dataset was developed and provided by the Idaho Transportation Department (ITD). Users should credit ITD as the original source when utilizing or referencing this information in maps, reports, or applications.", "licenseInfo": "

Spatial Data Disclaimer - The Idaho Transportation Department (ITD) provides this geographic data any any associated metadata \"as is\" without warranty of any kind, including but not limited to its completeness, fitness for a particular use, or accuracy of its content, positional or otherwise. It is the sole responsibility of the user to determine the usability of the data for their purposes. In no event shall ITD have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind arising out of the use of or reliance on the geographic data or metadata. In providing this data or access to it, ITD assumes no obligation to assist the user in the use of such data or in the development, use, or maintenance or any applications applied to or associated with the data or metadata.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "portalUrl": "" }