• Organization: City of Seattle
• Updated: 2026-02-13

Guardrails are devices designed to keep pedestrians and motor vehicles from straying off the road into potentially dangerous or off-limit areas of the ROW.  Guardrails improve safety and also...

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• Organization: State of Iowa
• Updated: 2024-07-25

TB_STEELBEAM

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• Organization: District of Columbia
• Updated: 2022-02-04T00:00:00.000Z

Barrier: Captures jersey barriers and walls along roads and bridges as linear features. This includes impact attenuators. Where road edges and barriers share the same delineation, the geometry is...

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• Organization: City of Seattle
• Updated: 2025-01-29

The City of Seattle Transportation GIS Datasets | https://data-seattlecitygis.opendata.arcgis.com/datasets?t=transportation | Lifecycle status: Production | Purpose: to enable open access to...

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• Organization: District of Columbia
• Updated: 2026-02-11T03:17:18.000Z

Road edges are defined as the edge of the improved surface including the improved shoulder but do not include the unimproved shoulder, only the travel part of the road. The road network is...

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• Organization: District of Columbia
• Updated: 2022-02-04T00:00:00.000Z

Road edges are defined as the edge of the improved surface including the improved shoulder but do not include the unimproved shoulder, only the travel part of the road. The road network is...

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