Layer: Towns Young Driver Risk (ID:177)

View In: Map Viewer

Name: Towns Young Driver Risk

Display Field: RPA_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This datalayer was created for the purposes of providing a risk-based prioritization of Massachusetts's 351 cities and towns based on the factors correlated with increased frequency of severe crashes involving young drivers. The map is driven by the political boundary datalayer, which is a polygon representation of town boundaries created from arcs developed from survey coordinates extracted from the 68-volume Harbor and Lands Commission Town Boundary Atlas for the 351 communities (cities and towns) in Massachusetts. The Atlas was published in the early 1900's and is maintained by the Survey Section of Massachusetts Highway Department. For communities with a coastal boundary, MassGIS has collaborated with Massachusetts Water Resources Authority and the Department of Environmental Protection to complete a 1:12000 scale coastline. The boundary for the coastline was defined as being the upland side of tidal flats and rocky inter-tidal zones. Note that the 351 communities are the official municipal names, not including "villages" or other sections of towns.The safety analysis is documented in the associated report.

Copyright Text: Massachusetts Highway Survey Section, MassGIS, MassDOT Traffic Safety Section

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Global ID Field:

Type ID Field: rs_cat

Fields:

OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
Town (type: esriFieldTypeString, alias: City or Town, SQL Type: sqlTypeOther, length: 21, nullable: true, editable: true)
MPONa (type: esriFieldTypeString, alias: MPONa, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
mpo (type: esriFieldTypeInteger, alias: mpo, SQL Type: sqlTypeOther, nullable: true, editable: true)
rs_rank (type: esriFieldTypeDouble, alias: Ranking - MPO, SQL Type: sqlTypeOther, nullable: true, editable: true)
rs_cat (type: esriFieldTypeString, alias: Category - MPO, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
RS_TOT (type: esriFieldTypeDouble, alias: Total Risk Score, SQL Type: sqlTypeOther, nullable: true, editable: true)
RS_TOTP (type: esriFieldTypeDouble, alias: Normalized Risk Score, SQL Type: sqlTypeOther, nullable: true, editable: true)
Population (type: esriFieldTypeInteger, alias: Population of the Town, SQL Type: sqlTypeOther, nullable: true, editable: true)
Mileage (type: esriFieldTypeDouble, alias: Centerline Mileage in the Town, SQL Type: sqlTypeOther, nullable: true, editable: true)
ActiveLicense (type: esriFieldTypeInteger, alias: Licensed Driver Count in the Town, SQL Type: sqlTypeOther, nullable: true, editable: true)
Area (type: esriFieldTypeDouble, alias: Area of the Town, SQL Type: sqlTypeOther, nullable: true, editable: true)
UNBELTED_FLAG (type: esriFieldTypeInteger, alias: Risk Factor for Unbelted Drivers, SQL Type: sqlTypeOther, nullable: true, editable: true)
IMPAIRED_PER_MILE (type: esriFieldTypeInteger, alias: Annual Impaired Citations Per Mile Over 1.5, SQL Type: sqlTypeOther, nullable: true, editable: true)
UNBELTED_PER_MILE (type: esriFieldTypeInteger, alias: Annual Unbelted Citations Per Mile Over 1, SQL Type: sqlTypeOther, nullable: true, editable: true)
LN_YOUNG_POP (type: esriFieldTypeDouble, alias: Natural Log of Population 15-24, SQL Type: sqlTypeOther, nullable: true, editable: true)
PERCENT_UNBELTED_FLAG (type: esriFieldTypeInteger, alias: Percent Belted Under 85, SQL Type: sqlTypeOther, nullable: true, editable: true)
LN_YOUNG_POP_RANK (type: esriFieldTypeDouble, alias: Risk Factor and Percentile Rank for Population Aged 15-24, SQL Type: sqlTypeOther, nullable: true, editable: true)
PROP_YOUNG_DRIVER_RANK (type: esriFieldTypeDouble, alias: Risk Factor and Percentile Rank for Licensed Drivers 16-21, SQL Type: sqlTypeOther, nullable: true, editable: true)
VEH_PER_HH_RANK (type: esriFieldTypeDouble, alias: Risk Factor and Percentile Rank for Average Vehicles per Household, SQL Type: sqlTypeOther, nullable: true, editable: true)
PROP_YOUNG_DRIVER (type: esriFieldTypeDouble, alias: Proportion of Licensed Drivers 16-21, SQL Type: sqlTypeOther, nullable: true, editable: true)
PROP_MILEAGE_FUNC_CLASS_1_2 (type: esriFieldTypeInteger, alias: Proportion of Mileage Functional Class 1 or 2, SQL Type: sqlTypeOther, nullable: true, editable: true)
VEH_PER_HH (type: esriFieldTypeDouble, alias: Vehicles Per Household, SQL Type: sqlTypeOther, nullable: true, editable: true)
YOUNG_DRIVER_KA (type: esriFieldTypeInteger, alias: Young Driver KA Crashes, SQL Type: sqlTypeOther, nullable: true, editable: true)
EJ_ESL_FLAG (type: esriFieldTypeInteger, alias: Risk Factor for EJ ESL Community, SQL Type: sqlTypeOther, nullable: true, editable: true)
NOT_EJ_I_FLAG (type: esriFieldTypeInteger, alias: Risk Factor for not a EJ Low Income Community, SQL Type: sqlTypeOther, nullable: true, editable: true)
PROP_MI_FUNC_CLASS_1_2_FLAG (type: esriFieldTypeInteger, alias: Risk Factor for Proportion of Centerline Mileage FC12 Greater than 0.025, SQL Type: sqlTypeOther, nullable: true, editable: true)
UNBELTED_CITATIONS_FLAG (type: esriFieldTypeInteger, alias: Risk Factor for Annual Unbelted Citations, SQL Type: sqlTypeOther, nullable: true, editable: true)
IMPAIRED_FLAG (type: esriFieldTypeInteger, alias: Risk Factor for Annual Impaired Driving Citations, SQL Type: sqlTypeOther, nullable: true, editable: true)
LN_LENGTH_YEARS (type: esriFieldTypeDouble, alias: Risk Factor for Natural Log of Total Centerline Mile-Years, SQL Type: sqlTypeOther, nullable: true, editable: true)
RPA_NAME (type: esriFieldTypeString, alias: RPA_NAME, SQL Type: sqlTypeOther, length: 80, nullable: true, editable: true)
DistrictName (type: esriFieldTypeString, alias: District Name, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
DistrictNumber (type: esriFieldTypeSmallInteger, alias: District Number, SQL Type: sqlTypeOther, nullable: true, editable: true)
MPO_Category (type: esriFieldTypeString, alias: MPO_Category, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Types:

rs_cat: High Risk

rs_cat: Highest Risk

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 4/8/2025 1:13:13 PM

Schema Last Edit Date: 4/8/2025 1:13:13 PM

Data Last Edit Date: 4/8/2025 1:13:13 PM

Supported Operations: Query Query Pivot Query Top Features Query Analytic Query Bins Generate Renderer Validate SQL Get Estimates ConvertFormat