Name: Capacity
Display Field: ROUTE_NAME
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Is View: true
Is Updatable View: true
Source Schema Changes Allowed: true
Sources
Description: Several layers were examined as part of the highway improvement needs analysis conducted for the 2017 State Transportation Plan. Future capacity needs on the Primary Highway System were evaluated for the year 2040 with the Iowa Travel Analysis model (iTRAM). A volume-to-capacity (V/C) ratio was used, which divides the roadway’s forecast traffic by its capacity. A corridor is targeted to have a capacity need if the majority of its V/C values exceed 0.7, which is considered to be approaching capacity. Needs were identified at the corridor level; spot locations, generally defined as 0.5 miles in length, were not included as corridors. For more information, see iowadot.gov/iowainmotion.
Copyright Text: Iowa Department of Transportation - Office of Systems Planning
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Max Record Count: 2000
Supported query Formats: JSON
Use Standardized Queries: True
Extent:
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YMin: 4922100.82269597
XMax: -10036667.4266384
YMax: 5388544.47334986
Spatial Reference: 102100 (3857)
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HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Object ID Field: OBJECTID
Unique ID Field:
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Global ID Field: GLOBALID
Type ID Field:
Fields:
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- ROUTE_ID (type: esriFieldTypeString, alias: ROUTE_ID, SQL Type: sqlTypeOther, length: 15, nullable: false, editable: true)
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Templates:
Name: Capacity
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:
Is Data Versioned: false
Has Contingent Values: false
Supports Rollback On Failure Parameter: true
Last Edit Date: 4/18/2024 10:15:03 AM
Schema Last Edit Date: 3/1/2023 2:54:20 PM
Data Last Edit Date: 4/18/2024 10:15:03 AM
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