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Service Description: <div style='text-align:Left;'><div><div><div style='font-size:12pt'><p><span>This point feature layer represents roundabout locations extracted from the Master Street Map (MSM) maintained and managed by the Ada County Highway District (ACHD) in Ada County, Idaho. Each feature corresponds to an individual roundabout and include attributes such as roundabout type, street names and RAB type. Roundabouts serve as alternative intersection control devices designed to improve traffic flow, reduce conflict points, and enhance safety compared to traditional signalized or stop-controlled intersections. The dataset is intended to support transportation planning, traffic operations, safety analysis, intersection management, capital improvement programming, and public-facing mapping applications across the ACHD road network. Data was compiled and is maintained by the Ada County Highway District.</span></p></div></div></div></div>
Map Name: Map
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Description: This point feature layer represents roundabout locations extracted from the Master Street Map (MSM) maintained and managed by the Ada County Highway District (ACHD) in Ada County, Idaho. Each feature corresponds to an individual roundabout and include attributes such as roundabout type, street names and RAB type. Roundabouts serve as alternative intersection control devices designed to improve traffic flow, reduce conflict points, and enhance safety compared to traditional signalized or stop-controlled intersections. The dataset is intended to support transportation planning, traffic operations, safety analysis, intersection management, capital improvement programming, and public-facing mapping applications across the ACHD road network. Data was compiled and is maintained by the Ada County Highway District.
Service Item Id: f3a7b5af4b5049f28fa43d78c46ef791
Copyright Text: Created by Ada County Highway District, 2026. Master Street Maps Roundabouts data sourced from the highway district.
Spatial Reference:
102459
(102459)
Single Fused Map Cache: false
Initial Extent:
XMin: 2453282.62186361
YMin: 704912.5736525041
XMax: 2484768.0941180373
YMax: 725408.7982856618
Spatial Reference: 102459
(102459)
Full Extent:
XMin: 2423063.020189417
YMin: 653600.5710170015
XMax: 2526864.5415885844
YMax: 754663.7356881704
Spatial Reference: 102459
(102459)
Units: esriFeet
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Map
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Keywords: Roundabouts,master street map,MSM,intersections,traffic control,traffic operations,safety,roads,roadway network,transportation,infrastructure,functional classification,traffic,ADT,intersection management,Ada County Highway District,points,GIS,planning,capital improvement,mobility
AntialiasingMode: Fast
TextAntialiasingMode: Force
Supports Dynamic Layers: true
MaxRecordCount: 2000
MaxSelectionCount: 2000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
Child Resources:
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Supported Operations:
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