View In:   ArcGIS Online Map Viewer

Name: Traffic Deaths

Display Field: Tract

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="text-align:Justify;"><SPAN>The Traffic Deaths indicator measures the percent deaths within each census tract based on all accident death counts. The number of traffic deaths in the census tract is divided by the census tract population multiplied by 100 to determine the percent deaths. Traffic deaths data from 2010 to 2019 for this indicator were collected directly from the Fatality Analysis Reporting System (FARS). The geocoded crash data were combined to the census tract level for equity analysis. </SPAN></P><P STYLE="text-align:Justify;"><SPAN><SPAN>Various studies on traffic safety have primarily focused on injuries or deaths caused by motor vehicle accidents. Road, traffic, employment density, race, and income level have been used as independent variables in those studies. Crash rate or injuries counts, and loss of life have been used to quantify traffic safety for equity when conducting cost-benefit analysis. Moreover, studies of equity between races quantified crash rate as the number of people from a specified population injured in a census tract divided by the total population of that census tract. </SPAN></SPAN></P><P STYLE="text-align:Justify;"><SPAN>Safety countermeasures such as signalization, markings, and operational upgrades, geometric design, systemic safety projects, signs, and Intelligent Transportation Systems (ITS) can be taken to decrease the number of traffic injuries and fatalities. Systemic safety planning could be adopted to evaluate the entire system using a defined set of criteria to identify possible locations for safety investments to reduce the occurrence of and the potential for severe crashes. </SPAN></P><P STYLE="text-align:Justify;"><SPAN><SPAN>Systemic safety projects can be applied over an entire corridor to reduce crashes and risks along the whole corridor, help widen traffic safety efforts, and consider risk and crash history when finding where to make low-cost safety improvements. The Federal Highway Administration (FHWA) has nine recognized safety countermeasures such as road diets, medians and pedestrian crossing islands, pedestrian hybrid beacons, roundabouts, access management, retroreflective backplates, safety edge, enhanced curve delineation, and rumble strips that can be implemented depending on local transportation safety realities. </SPAN></SPAN></P><P STYLE="text-align:Justify;"><SPAN STYLE="font-weight:bold;"><SPAN>Data Source(s)</SPAN></SPAN><SPAN>National Highway Traffic Safety Administration, Fatality Analysis Reporting System (2021). Run a Query Using the FARS Web-Based Encyclopedia. CSV</SPAN></P></DIV></DIV></DIV>

Service Item Id: d82b3b7a178a45d4947275181262a73a

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

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MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

Max Scale: 0.0

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Supports Statistics: true

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Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Supports Datum Transformation: true

Extent:

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YMin: 3833632.954253219
XMax: -1.2705386244299663E7
YMax: 5162405.138530061
Spatial Reference: 102100  (3857)  LatestVCSWkid(0)

Drawing Info:

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Type ID Field:

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID )
• Tract ( type: esriFieldTypeDouble, alias: Tract, editable: true, nullable: true, defaultValue: null, modelName: Tractdbl )
• ZIP ( type: esriFieldTypeString, alias: ZIP, editable: true, nullable: true, length: 255, defaultValue: null, modelName: Approx__ZIP )
• Population ( type: esriFieldTypeInteger, alias: Population, editable: true, nullable: true, defaultValue: null, modelName: ACS2019TotalPop )
• PopChar ( type: esriFieldTypeDouble, alias: Pop. Characteristics, editable: true, nullable: true, defaultValue: null, modelName: PopChar )
• Child_10 ( type: esriFieldTypeDouble, alias: Child_10, editable: true, nullable: true, defaultValue: null, modelName: Child_10 )
• Pop_10_64 ( type: esriFieldTypeDouble, alias: Pop_10_64, editable: true, nullable: true, defaultValue: null, modelName: Pop_10_64 )
• Elderly_65 ( type: esriFieldTypeDouble, alias: Elderly_65, editable: true, nullable: true, defaultValue: null, modelName: Elderly_65 )
• Hispanic ( type: esriFieldTypeDouble, alias: Hispanic, editable: true, nullable: true, defaultValue: null, modelName: Hispanic )
• White ( type: esriFieldTypeDouble, alias: White, editable: true, nullable: true, defaultValue: null, modelName: White )
• African_American ( type: esriFieldTypeDouble, alias: African_American, editable: true, nullable: true, defaultValue: null, modelName: African_American )
• Native_American ( type: esriFieldTypeDouble, alias: Native_American, editable: true, nullable: true, defaultValue: null, modelName: Native_American )
• Asian_American ( type: esriFieldTypeDouble, alias: Asian_American, editable: true, nullable: true, defaultValue: null, modelName: Asian_American )
• Pacific_Islander ( type: esriFieldTypeDouble, alias: Pacific_Islander, editable: true, nullable: true, defaultValue: null, modelName: Pacific_Islander )
• Other_Multiple ( type: esriFieldTypeDouble, alias: Other_Multiple, editable: true, nullable: true, defaultValue: null, modelName: Other_Multiple )
• County ( type: esriFieldTypeString, alias: County, editable: true, nullable: true, length: 255, defaultValue: null, modelName: County )
• ApproxLoc ( type: esriFieldTypeString, alias: City, editable: true, nullable: true, length: 255, defaultValue: null, modelName: City )
• Area_Sq_Miles_Census ( type: esriFieldTypeDouble, alias: Area_Sq_Miles, editable: true, nullable: true, defaultValue: null, modelName: Area_Sq_Miles_Census )
• Total_Traffic_Deaths ( type: esriFieldTypeInteger, alias: Total_Traffic_Deaths, editable: true, nullable: true, defaultValue: null, modelName: Total_Traffic_Deaths )
• Mean_Traffic_Deaths ( type: esriFieldTypeDouble, alias: Mean_Traffic_Deaths, editable: true, nullable: true, defaultValue: null, modelName: Mean_Traffic_Deaths )
• Std_Dev_Traffic_Deaths ( type: esriFieldTypeDouble, alias: Std_Dev_Traffic_Deaths, editable: true, nullable: true, defaultValue: null, modelName: Std_Dev_Traffic_Deaths )
• ZScore_Traffic_Deaths ( type: esriFieldTypeDouble, alias: ZScore_Traffic_Deaths, editable: true, nullable: true, defaultValue: null, modelName: ZScore_Traffic_Deaths )
• Traffic_Deaths_Comparative_Scor ( type: esriFieldTypeDouble, alias: Traffic_Deaths_Comparative_Score, editable: true, nullable: true, defaultValue: null, modelName: Traffic_Deaths_Comparative_Score )
• Traffic_Deaths_Comparative_Perc ( type: esriFieldTypeString, alias: Traffic Deaths Comparative Percentage, editable: true, nullable: true, length: 10, defaultValue: null, modelName: Traffic_Deaths_Comparative_Percentage )
• Traffic_Deaths_Assigned_Categor ( type: esriFieldTypeString, alias: Traffic Deaths Assigned Category, editable: true, nullable: true, length: 10, defaultValue: null, modelName: Traffic_Deaths_Assigned_Category )
• Data_Source ( type: esriFieldTypeString, alias: Data Source, editable: true, nullable: true, length: 255, defaultValue: null, modelName: Data_Source )
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Templates:

• Name: Traffic Deaths
  Description:
  Prototype:
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  Data_Source: null
  Tract: null
  ZIP: null
  Population: null
  PopChar: null
  Child_10: null
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  Elderly_65: null
  Hispanic: null
  White: null
  African_American: null
  Native_American: null
  Asian_American: null
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  Other_Multiple: null
  County: null
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  Area_Sq_Miles_Census: null
  Total_Traffic_Deaths: null
  Mean_Traffic_Deaths: null
  Std_Dev_Traffic_Deaths: null
  ZScore_Traffic_Deaths: null
  Traffic_Deaths_Comparative_Scor: null
  Traffic_Deaths_Comparative_Perc: null
  Traffic_Deaths_Assigned_Categor: null
  
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Capabilities: Query,Extract

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Supports Query With Historic Moment: false

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Supported Operations:   Query   Query Analytic   Calculate   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata