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SGID transportation category

Utah UDOT Routes ALRS

Last update · Weekly

Category: Transportation Data Type: Line GIS data Steward: Utah Department of Transportation (UDOT)

The UDOT Routes ALRS layer is a polylineM dataset wherein each state and federal route is a single feature whose vertices include a milepoint measure coordinate.

Use the data

Quick clips

Feature service URL

https://roads.udot.utah.gov/server/rest/services/Public/UDOT_Routes/MapServer/0 Copy to clipboard

Getting started

Learn more about the SGID on ArcGIS.

Tip

You can copy and paste the feature service URL above into ArcGIS Pro or a web map to visualize this data or access the query endpoint to query the data with your favorite programming language.

A closer look

Major routes (shown in the ROUTE_ID field) are named using UDOT’s naming convention (ex. 0089PM is US-89, a mainline route in the positive direction). Ramps and collectors are also included and have 11 character identifiers (ex. 0015NR31703 is at exit 317 on I-15).

UDOT ramp numbering

Fields worth noting

ROUTE_ID
  • P represents Positive direction (increasing milepoint values)
  • N represents Negative direction (for divided routes only)
  • M represents Mainline
  • R represents Ramp
  • C represents Collector
  • X represents Other
CARTO_CODE
  • 1 - Interstate highways
  • 2 - US highways
  • 3 - State highways
  • 5 - Miscellaneous routes associated with interchanges
  • 6 - Ramps, Interstates
  • 7 - Ramps, US Highways
  • 8 - Ramps, State highways
  • 9 - Local routes, federal aid
  • I - Institutional roads designated as state highways

Please reach out to Kelli Bacon from UDOT at kbacon@utah.gov with questions about this data layer.

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