20211208
15540400
1.0
FALSE
msaDistracted_State
34175.913200
330613.526600
777674.625100
959742.959900
1
002
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_StatePlane_Massachusetts_Mainland_FIPS_2001
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20210824
10592100
20210824
13370800
FGDC
150000000
5000
dataset
Bonnie Polin
Mass DOT Highway Safety and Engineering
Manager
857-368-9639
10 Park Plaza, Suite 7210
Boston
MA
02116
bonnie.polin@dot.state.ma.us
20210824
ArcGIS Metadata
1.0
File Geodatabase Feature Class
Network Screening Distracted Driver Safety Risk by Statewide Ranking
2021-03-23
Bonnie Polin, Mass DOT Highway Safety and Engineering, Manager
vector digital data
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The Network Screening – Systemic/Risk Based data can be used to access and visualize the top risk sites for each of the Strategic Highway Safety Plan emphasis areas based on specific risk factors developed for this emphasis area. The top risk sites are available statewide as well as top risks within each MPO/RPA. Each emphasis area is focused on certain road types so not all roadway segments are included. Details on the specific risk factors and how they were developed for this emphasis area can be found in the MassDOT Network Screening Risk Based Methodology Reports.</SPAN></P></DIV></DIV></DIV>
The risk-based network screening data is based on risk factors identified for many of the emphasis areas of the Strategic Highway Safety Plan. Sites with the greatest risk, ranked based on risk scores which are generated from the number and types of risk factors present, are then visualized. A variety of statistical methods were used to identify the risk factors for each of the emphasis areas This would supplement the crash-based network screening results, allowing agencies to generate safety projects using two justifications: addressing crash “hot spots” (crash-based) and addressing sites with the highest risk of a fatal or injury crash (risk based). This data identifies primary and secondary risk sites for all segments statewide or by MPO/RPA
VHB, MassDOT Highway Traffic Safety
Bonnie Polin
Mass DOT Highway Safety and Engineering
Manager
857-368-9639
10 Park Plaza Suite 7210 Boston MA 02116
Boston
MA
02116
US
bonnie.polin@dot.state.ma.us
IMPACT
ANALYSIS
RISKBASE
IMPACT
ANALYSIS
RISKBASE
Esri ArcGIS 10.7.1.11595
true
-73.521212
-69.909714
42.885994
41.235635
Crash years 2013-2017
2013-01-01
2018-01-01
1
-73.529499
-69.901324
42.888311
41.231849
Measure
Measure
Several sources: Massachusetts Department of Transportation Road Inventory File 2019, 2010 Census data, 2013-2017 RMV crash report data
Several process steps are taken in the data model and analysis used to develop this data available in the methodology reports.
First Edition
Several process steps are taken in the data model and analysis used to develop this data available in the methodology reports.
2021-08-01T00:00:00
310040
EPSG
2.1(3.0.1)
msaDistractedDriver_Statewide
Distracted Driver Statewide Ranked Risk Segments
MassDOT Traffic Safety
Feature Class
310040
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
Esri
Coordinates defining the features.
Geometry
0
Shape
0
0
UNIQUE_ID
Unique ID for segment
VHB
Integer
8
The set of data values is not represented by a domain
UNIQUE_ID
0
0
AADT
AADT
Integer
4
0
0
Average annual daily traffic, measured by counting the total number of vehicles in a year and
dividing by 365.
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
AADT_FLAG
AADT Risk Factor
Double
8
0
0
AADT Risk Factor flag
VHB
The set of data values is not represented by a domain
City
City
SmallInteger
2
0
0
City code
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
Curb
Curb
SmallInteger
2
0
0
A raised surface improvement along the edge of the pavement. Curbs also include berms, a term
used here to describe the less severe, angled, and often asphalt curbs.
0 = None
• 1 = Left side only
• 2 = Right side only
• 3 = Both sides
• 4 = Along median only
• 5 = All curbs (divided highway)
Massachusetts Department of Transportation Office of Transportation Planning
|dCurb [None || Left side only || Right side only || Both sides || Along median only || All curbs (divided highway) || ]|
VHB
CURB_FLAG
Curb Risk Factor
Double
8
0
0
Curb risk factor
VHB
|dCurb [None || Left side only || Right side only || Both sides || Along median only || All curbs (divided highway) || ]|
VHB
DistrictNa
District Name
String
80
0
0
MassDOT District Name
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
DistrictNu
District Number
String
80
0
0
District Number
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
F_CLASS_FLAG
Risk Factor for Segment Functional Class
Double
8
0
0
Functional class risk factor
VHB
The set of data values is not represented by a domain
Facility
Facility Type
SmallInteger
2
0
0
Describes the intended function of a road. Facilities with a value less than 7* are included in
official statewide road centerline mileage.
1 = Mainline roadway*
• 2 = Roundabout*
• 3 = Tunnel*
• 4 = Doubledeck*
• 5 = Rotary*
• 6 = Causeway*
• 7 = Simple ramp
• 8 = Ramp - NB/EB
• 9 = Ramp - SB/WB
• 10 = Collector - Distributor
• 11 = Simple Ramp - Tunnel
• 12 = Bicycle
• 13 = Private Way
• 14 = Commercial Driveway
Massachusetts Department of Transportation Office of Transportation Planning
|dmFacTypeRisk [Mainline roadway || Roundabout || Tunnel || Doubledeck || Rotary || Causeway || Simple ramp || Ramp - NB/EB || Ramp - SB/WB || Collector - Distributor || Simple Ramp - Tunnel || Bicycle || Private Way || Commercial Driveway || ]|
VHB
fc_text
Functional Class Text
String
255
0
0
Functional class text description
VHB
The set of data values is not represented by a domain
F_F_Class
Federal Functional Class
SmallInteger
2
0
0
A general classification system used by the Federal Highway Administration to stratify roads by
significance.
1 = Interstate
• 2 = Principal Arterial – Freeways & Expressways
• 3 = Principal Arterial – Other
• 4 = Minor Arterial
• 5 = Major Collector
• 6 = Minor Collector
• 7 = Local
Massachusetts Department of Transportation Office of Transportation Planning
|dmFFuncClass [Interstate || Principal Arterial - Freeways & Expressways || Principal Arterial - Other || Minor Arterial || Major Collector || Minor Collector || Local || ]|
VHB
From_Measure
From Measure
Double
8
0
0
From measure
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
ft_text
Facility Type Text
String
255
0
0
Facility Type Text
VHB
The set of data values is not represented by a domain
F_Class
Functional Class
SmallInteger
2
0
0
A road classification system used by Massachusetts that incorporates urban/rural census designations and the federal classification system. *The value 4 is no longer used in this field.
• 0 = Local
• 1 = Interstate
• 2 = Urban or Rural Principal Arterial
• 3 = Urban Principal or Rural Minor Arterial
• 5 = Urban Minor Arterial or Rural Major
Collector
• 6 = Urban Collector or Rural Minor Collector
Massachusetts Department of Transportation Office of Transportation Planning
|dmFuncClass [Local || Interstate || Urban or Rural Principal Arterial || Urban Principal or Rural Minor Arterial || Urban Minor Arterial or Rural Major || Urban Collector or Rural Minor Collector || ]|
VHB
jur_text
Jurisdiction Text
String
255
0
0
Jurisdiction text description
VHB
The set of data values is not represented by a domain
Jurisdictn
Jurisdiction
String
1
0
0
The owner of a road, usually responsible for maintenance activities and project initiation.
0 = Unaccepted by city or town
• 1 = MassDOT
• 2 = City or Town accepted road
• 3 = Dept. of Conservation and Recreation
• 5 = Massachusetts Port Authority
• 6 = State Park or Forest
• 7 = State Institutional
• 8 = Federal Park or Forest
• 9 = County Institutional
• B = State college or university
• C = US Air Force
• D = US Army Corps of Engineers
• E = Federal Institutional
• F = Other Federal
• G = Federal Bureau of Indian Affairs
• H = Private
• I = US Army
• J = US Navy
Massachusetts Department of Transportation Office of Transportation Planning
|dmJurisdiction [Unaccepted by city or town || MassDOT || City or Town accepted road || Dept. of Conservation and Recreation || n/a || Massachusetts Port Authority || State Park or Forest || State Institutional || Federal Park or Forest || County Institutional || State college or university || US Air Force || US Army Corps of Engineers || Federal Institutional || Other Federal || Federal Bureau of Indian Affairs || Private || US Army || US Navy || ]|
VHB
Med_Type
Median Type
SmallInteger
2
0
0
Type of median on divided roadways. Median types typically reflect the security measures present on them. Positive barrier refers to the specific objects used to deter off-side traffic.
0 = None - There no median present.
• 1 = Curbed - There is a curbed median, but
no additional protections.
• 2 = Positive barrier (Unspecified) - Positive
barriers represent any protection that is
not just a curb. This might be a g
• 3 = Unprotected - A median is present, but
there is no curb or other protections. Typically this is a level painted or grass area.
Massachusetts Department of Transportation Office of Transportation Planning
|dMedType [None || Curbed ||Positive barrier - Unspecified ||Unprotected ||Positive barrier – Flexible ||Positive barrier – Semi-Rigid ||Positive barrier – Rigid || ]|
VHB
MEDIAN_FLAG
Median Barrier Risk Factor
Double
8
0
0
Median barrier risk factor
VHB
The set of data values is not represented by a domain
MPO
MPO
SmallInteger
2
0
0
A transportation planning and policy making organization composed of state and local officials
for the purpose of regional coordination. Some of the regions identified are Rural Transportation
Planning Organizations* not MPOs. • Berkshire
• Boston Region
• Cape Cod
• Central Massachusetts
• Franklin
• Martha’s Vineyard
• Merrimack Valley
• Montachusett
• Nantucket
• Northern Middlesex
• Old Colony
• Pioneer Valley
• Southeastern Massachusetts
Massachusetts Department of Transportation Office of Transportation Planning
|dmMPO [Berkshire Region Metropolitan Planning Organization || Boston Region Metropolitan Planning Organization || Cape Cod Metropolitan Planning Organization || Central MA Metropolitan Planning Organization || Franklin Regional Council of Governments || Martha’s Vineyard Commission || Merrimack Valley Metropolitan Planning Organization || Montachusett Metropolitan Planning Organization || Nantucket Planning and Economic Development Commission || Northern Middlesex Council of Governments || Old Colony Metropolitan Planning Organization || Pioneer Valley Metropolitan Planning Organization || Southeast MA Metropolitan Planning Organization || ]|
Massachusetts Department of Transportation Office of Transportation Planning
mpo_text
MPO Text
String
255
0
0
MPO Text Description
VHB
The set of data values is not represented by a domain
PSL_FLAG
Risk Factor for Segment Speed Limit
Double
8
0
0
Posted Speed Limit Risk Factor
VHB
The set of data values is not represented by a domain
Rd_Seg_ID
Road Segment ID
Integer
4
0
0
A legacy identifier from previous versions of the Road Inventory. This field refers to subsections
of road lengths, typically between two intersections.
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
Route_ID
Route ID
String
16
0
0
A unique identifier assigned to each road in Massachusetts. The Route ID consists of three parts:
A route system identifier, a numeric code, and a directional value (E.g. L000001 NB).
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
Route_Number
Route Number
String
10
0
0
The official route number designation; need not be exclusively numeric (E.g. 1A, 2A, 8A-L).
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
Route_System
Route System
String
3
0
0
The route system is method of categorization to broadly describe a route. I = Interstate
• US = US Highway
• SR = State Route
• R = Ramp
• L = Local Route
• B = Bike/Pedestrian Route
• M = Miscellaneous
• N = Non-numbered
Massachusetts Department of Transportation Office of Transportation Planning
|dRouteSystem [ Interstate || US Highway || State Route || Ramp || Local Route || Bike/Pedestrian Route || Miscellaneous || Non-numbered || ]|
VHB
Seg_length
Segment Length
Double
8
0
0
Segment length in miles
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
SHLDER_FLAG
Shoulder Width Risk Factor
Double
8
0
0
Shoulder width risk factor
VHB
The set of data values is not represented by a domain
Shldr_Rt_W
Right Shoulder Width
Double
8
0
0
Width of shoulder measured from the lane closest to the edge of the road, to the end of the
area intended to be used by stopped traffic.
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
Speed_Lim
Speed Limit
SmallInteger
2
0
0
Posted speed limit
Massachusetts Department of Transportation Office of Transportation Planning
Massachusetts Department of Transportation Office of Transportation Planning
St_Name
Street Name
String
100
0
0
The name of a road. Names in this field are written in all capital letters and their type spelled
out in full. (E.g. MAIN STREET, EAST QUINN ROAD).
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
To_Measure
To Measure
Double
8
0
0
To Measure
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
TOWN
Town
String
21
0
0
Town the segment is located in
Massachusetts Department of Transportation Office of Transportation Planning
The set of data values is not represented by a domain
TOWN_SCORE
Total Town Risk Score
Double
8
0
0
Town Risk Score
VHB
The set of data values is not represented by a domain
Unique_ID_2
Unique ID
Integer
4
0
0
Segment unique ID for dissolve
VHB
The set of data values is not represented by a domain
Urban_Type
Urban Type
SmallInteger
2
0
0
This field describes population density based on the 2010 Census delineations of urban areas, urban clusters, and rural populations. 1 = Large Urbanized Area Densely settled territory that contains 200K people or more • 2 = Small Urbanized Area Densely settled territory that contains at least 50K people but fewer than 200K people • 3 = Large Urban Cluster Densely settled territory that contains at least 5K people but fewer than 50K people • 4 = Small Urban Cluster Densely settled territory that contains at least 2.5K people but fewer than 5K people • 5 = Rural
Massachusetts Department of Transportation Office of Transportation Planning
|dUrbanType [Large Urbanized Area Densely settled territory that contains 200K people or more || Small Urbanized Area Densely settled territory that contains at least 50K people but fewer than 200K people || Large Urban Cluster Densely settled territory that contains at least 5K people but fewer than 50K people || Small Urban Cluster Densely settled territory that contains at least 2.5K people but fewer than 5K people || Rural || ]|
VHB
Population
Population
Integer
4
0
0
The population of the city or town the segment is in
VHB
The set of data values is not represented by a domain
EJ_Criteria
EJ Criteria
String
8000
0
0
The Environmental Justice criteria for the town the segment is within
VHB
The set of data values is not represented by a domain
EJ_FLAG
Risk Factor for EJ - Income
Integer
4
0
0
Risk factor flag for the environmental justice factors for the city or town the segment is within
VHB
The set of data values is not represented by a domain
COLLEGE_UNIV_DENSE
College and University Density
Double
8
0
0
The density of colleges and universities in the city or town the segment is within
VHB
The set of data values is not represented by a domain
POP_FLAG
Population Risk Factor
Double
8
0
0
The risk factor flag for population for the city or town the segment is within
VHB
The set of data values is not represented by a domain
UNIV_FLAG
College Density Risk Factor
Double
8
0
0
Risk factor flag for college and university density for the city or town the segment is within
VHB
The set of data values is not represented by a domain
CM_UR_PA_FLAG
Risk Factor for Proportion of Principal Arterial Centerline Mileage
Double
8
0
0
Risk Factor for Proportion of Principal Arterial Centerline Mileage for the city or town the segment is within
VHB
The set of data values is not represented by a domain
UR_PA_PROP
Proportion of Principal Arterial Centerline Mileage
Double
8
0
0
Urban and Rural Principal Arterial Proportion of Centerline Mileage for the city or town the segment is within
VHB
The set of data values is not represented by a domain
UMA_RMC_PROP
Proportion of Urban Minor Arterial or Rural Major Collector Mileage
Double
8
0
0
Proportion of Centerline Mileage that is Urban Minor Arterial and Rural Major Collector for the city or town the segment is within
VHB
The set of data values is not represented by a domain
CM_UMA_RMC_FLAG
Risk Factor for Proportion of Urban Minor Arterial or Rural Major Collector Mileage
Double
8
0
0
Risk Factor for Proportion of Centerline Mileage that is Urban Minor Arterial and Rural Major Collector for the city or town the segment is within
VHB
The set of data values is not represented by a domain
Impaired_Cit_Per_Mile
Impaired Citations per Mile
Double
8
0
0
Impaired Citations per Centerline Mile for the city or town the segment is within
VHB
The set of data values is not represented by a domain
Distracted_Cit_Per_Mile
Distracted Citations per Mile
Double
8
0
0
Distracted Driving Citations per Centerline Mile for the city or town the segment is within
VHB
The set of data values is not represented by a domain
Full_Cit_Per_Mile
Traffic Citations per Mile
Double
8
0
0
Total Traffic Citations per Centerline Mile for the city or town the segment is within
VHB
The set of data values is not represented by a domain
IMP_CIT_FLAG
Risk Factor for Impaired Driving Citations
Double
8
0
0
Risk Factor for Impaired Driving Citations for the city or town the segment is within
VHB
The set of data values is not represented by a domain
DIST_CIT_FLAG
Risk Factor for Distracted Driving Citations
Double
8
0
0
Risk Factor for Distracted Driving Citations for the city or town the segment is within
VHB
The set of data values is not represented by a domain
FULL_CIT_FLAG
Risk Factor for Total Traffic Citations
Double
8
0
0
Risk Factor for Total Traffic Citations for the city or town the segment is within
VHB
The set of data values is not represented by a domain
NUM_COLL_UNIV
Number of Colleges and Universities
Integer
4
0
0
Number of Colleges and Universities in the Town or City the Segment is Within
VHB
The set of data values is not represented by a domain
Impaired_per_Year
Annual Impaired Driving Citations
Double
8
0
0
Annual Impaired Driving Citations for the city or town the segment is within
VHB
The set of data values is not represented by a domain
Distracted_per_Year
Annual Distracted Driving Citations
Double
8
0
0
Annual Distracted Driving Citations for the city or town the segment is within
VHB
The set of data values is not represented by a domain
Full_per_Year
Annual Traffic Citations
Double
8
0
0
Annual Total Traffic Citations for the city or town the segment is within
VHB
The set of data values is not represented by a domain
Mileage
Centerline Mileage in Town
Double
8
0
0
Total centerline mileage for the city or town the segment is within
VHB
The set of data values is not represented by a domain
Shape_Length_1
Shape_Length
Double
8
0
0
Shape length
ESRI
The set of data values is not represented by a domain
FROMADDRESS
From Address
String
255
0
0
Closest geolocated address to the start of the segment, includes Number, Street Name, and Town Name
VHB
The set of data values is not represented by a domain
TOADDRESS
To Address
String
255
0
0
Closest geolocated address to the end of the segment, includes Number, Street Name, and Town Name
VHB
The set of data values is not represented by a domain
RS_RANK
Segment Ranking – Risk Score Ranking, Statewide
VHB
The set of data values is not represented by a domain
Double
8
RS_RANK
0
0
RS_CAT
Category (Primary or Secondary) – Risk Category, Statewide
VHB
The set of data values is not represented by a domain
String
255
RS_CAT
0
0
RS_TOT
Total Risk Score – Total Risk Score
VHB
The set of data values is not represented by a domain
Double
8
RS_TOT
0
0
RS_TOTP
Normalized Risk Score – Normalized Risk Score (as a Percentage)
VHB
The set of data values is not represented by a domain
Double
8
RS_TOTP
0
0
Shape_Length
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Double
8
Shape_Length
0
0
Simple
FALSE
310040
TRUE
TRUE