Name: Traffic Density

Display Field: Tract

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="text-align:Justify;font-weight:bold;"><SPAN><SPAN>Rationale </SPAN></SPAN></P><P STYLE="text-align:Justify;"><SPAN><SPAN>Vehicles traffic has proven to be a key source of air pollution with diverse air pollutants. Consequently, exposure to vehicle traffic-related air pollution can have adverse effects on human health; asthma, Low Birth Weight Infants, to name these two, are the result of vehicle traffic-related air pollution exposure, and they should be fairly treated in an equitable perspective. </SPAN></SPAN></P><P STYLE="text-align:Justify;"><SPAN><SPAN>The traffic density indicator measures the sum of traffic volumes adjusted by road segment length (vehicle -kilometers per hour) divided by total road length (kilometers) within 150 meters of the census tract boundary. Data is from the traffic volumes estimates for 2017 and is measured in vehicle-km per day per road-km. Data for this indicator were collected directly from CalEnviroScreen v4.0 at the census tract level. No additional calculations or adjustments outside of what was done for CalEnviroScreen were made for purposes of the EQI. CES 4.0 </SPAN></SPAN></P><P STYLE="text-align:Justify;"><SPAN STYLE="font-weight:bold;"><SPAN>Data Source(s): </SPAN></SPAN><SPAN>California Environmental Protection Agency (Cal EPA) Office of Environmental Health Hazard Assessment (OEHHA) (2021). CalEnviroScreen 4.0. Shapefile</SPAN></P></DIV></DIV></DIV>

Service Item Id: 68a0c9b2a1b0473c9fca469427e2b1d1

Copyright Text: Caltrans Office of Race and Equity (CORE), Caltrans Office of Sustainability. Copyright © 2022 California Department of Transportation (Caltrans)

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

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Spatial Reference: 102100  (3857)

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Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Tract ( type: esriFieldTypeDouble, alias: Tract )
• ZIP ( type: esriFieldTypeString, alias: ZIP, length: 255 )
• Population ( type: esriFieldTypeInteger, alias: Population )
• PopChar ( type: esriFieldTypeDouble, alias: Pop. Characteristics )
• Child_10 ( type: esriFieldTypeDouble, alias: Child_10 )
• Pop_10_64 ( type: esriFieldTypeDouble, alias: Pop_10_64 )
• Elderly_65 ( type: esriFieldTypeDouble, alias: Elderly_65 )
• Hispanic ( type: esriFieldTypeDouble, alias: Hispanic )
• White ( type: esriFieldTypeDouble, alias: White )
• African_American ( type: esriFieldTypeDouble, alias: African_American )
• Native_American ( type: esriFieldTypeDouble, alias: Native_American )
• Asian_American ( type: esriFieldTypeDouble, alias: Asian_American )
• Pacific_Islander ( type: esriFieldTypeDouble, alias: Pacific_Islander )
• Other_Multiple ( type: esriFieldTypeDouble, alias: Other_Multiple )
• County ( type: esriFieldTypeString, alias: County, length: 255 )
• ApproxLoc ( type: esriFieldTypeString, alias: City, length: 255 )
• Area_Sq_Miles_Census ( type: esriFieldTypeDouble, alias: Area_Sq_Miles )
• Traffic_Density ( type: esriFieldTypeDouble, alias: Traffic_Density )
• Traffic_Density_Pct ( type: esriFieldTypeDouble, alias: Traffic_Density_Pct )
• Mean_Traffic_Density ( type: esriFieldTypeDouble, alias: Mean_Traffic_Density )
• Std_Dev_Traffic_Density ( type: esriFieldTypeDouble, alias: Std_Dev_Traffic_Density )
• ZScore_Traffic_Density ( type: esriFieldTypeDouble, alias: ZScore_Traffic_Density )
• Traffic_Density_Comparative_Sco ( type: esriFieldTypeDouble, alias: Traffic_Density_Comparative_Score )
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• Traffic_Density_Comparative_Per ( type: esriFieldTypeString, alias: Traffic Density Comparative Percentage, length: 10 )
• Traffic_Density_Assigned_Catego ( type: esriFieldTypeString, alias: Traffic Density Assigned Category, length: 10 )
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Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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