20211208
15525400
1.0
FALSE
msaSpeeding_State
36686.054300
329932.687400
780259.356800
959485.530200
1
002
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_StatePlane_Massachusetts_Mainland_FIPS_2001
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20210824
10593700
20210824
10593700
FGDC
150000000
5000
dataset
Bonnie Polin
Mass DOT Highway Safety and Engineering
Manager
857-368-9639
10 Park Plaza, Suite 7210
Boston
MA
02116
US
bonnie.polin@dot.state.ma.us
20210824
ArcGIS Metadata
1.0
File Geodatabase Feature Class
Speed and Aggressive Driving 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 screened segments ranked by MPO risk.
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
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This data is in the public domain and therefore can be used by anyone for any purpose. MassDOT shall not be held liable for any errors in this data. This includes errors of omission, commission, errors concerning the content of the data, and relative and positional accuracy of the data. This data cannot be construed to be a legal document. Primary sources from which this data was compiled must be consulted for verification of information contained in this data.</SPAN></P></DIV></DIV></DIV>
Esri ArcGIS 12.4.2.19948
true
-73.498715
-69.909714
42.885994
41.255635
Crash years 2013-2017
2013-01-01
2018-01-01
1
-73.498715
-69.909714
42.885994
41.255635
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.
2021-03-01
First Edition
82446
EPSG
2.1(3.0.1)
Speed and Aggressive Driving Risk by Statewide Ranking
Speed and Aggressive Driving Statewide Ranked Risk Segments
MassDOT Traffic Safety
Feature Class
82446
Speed_Lim_Dif_Down
Speed_Lim_Dif_Down
Downstream Speed Limit Difference
VHB
Integer
4
0
0
The set of data values is not represented by a domain
WADOC_5_10_SCORE
WADOC_5_10_SCORE
Weighted average degree of curvature 5 or more degrees per 100 feet
VHB
Double
8
0
0
The set of data values is not represented by a domain
TOADDRESS
UNIQUE_ID
Integer
4
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
AADT
AADT
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
Integer
4
0
0
The set of data values is not represented by a domain
Young_PCt
Percent Drivers Under 24
the proportion of young drivers (i.e., drivers aged 24 or younger) involved in crashes for each city or town.
VHB
Double
8
0
0
The set of data values is not represented by a domain
OBJECTID
OBJECTID_12
Internal feature number.
Esri
OID
4
Sequential unique whole numbers that are automatically generated.
0
0
SIDEWALK_PRESENT_SCORE
SIDEWALK_PRESENT_SCORE
Sidewalk present on at least one side of the segment
VHB
Double
8
0
0
The set of data values is not represented by a domain
MAX_SL_DIF_15_OR_GREATER
MAX_SL_DIF_15_OR_GREATER
Maximum absolute difference in posted speed limit of 15 mph or greater
VHB
Double
8
0
0
The set of data values is not represented by a domain
mpo_text
mpo_text
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
Massachusetts Department of Transportation Office of Transportation Planning
String
255
0
0
The set of data values is not represented by a domain
YOUNG_DRIVERS_PROP
YOUNG_DRIVERS_PROP
Proportion of younger drivers in a town between 0.15 and 0.21
VHB
Double
8
0
0
The set of data values is not represented by a domain
Under_24_Total
Total Drivers Under 24
VHB used average number of drivers at each age group for the years 2013 through 2015 crash reports.
VHB
Integer
4
0
0
The set of data values is not represented by a domain
SEGMENT_IN_SRPEDD
SEGMENT_IN_SRPEDD
Segment is in MPO SRPEDD
VHB
Double
8
0
0
The set of data values is not represented by a domain
SUM_WADOC_New
SUM_WADOC_New
Sum of the Weighted Average Degree of Curvature per Segment
VHB
Double
8
0
0
The set of data values is not represented by a domain
NO_SIDEWALK
NO_SIDEWALK
No sidewalk present on the segment
Massachusetts Department of Transportation Office of Transportation Planning
Double
8
0
0
The set of data values is not represented by a domain
Med_Width
Median Width
Median Width
Massachusetts Department of Transportation Office of Transportation Planning
Double
8
The set of data values is not represented by a domain
0
0
RS_RANK
Risk Score Ranking by Statewide
Segment Ranking – Risk Score Ranking, Statewide
VHB
Double
8
0
0
The set of data values is not represented by a domain
RS_TOT
Total Risk Score
Total Risk Score – Total Risk Score
VHB
Double
8
0
0
The set of data values is not represented by a domain
F_F_Class
Federal Functional Class
SmallInteger
2
0
0
Federal Functional Class (F_F_Class) 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
Seg_length
Segment Length in Miles
Segment Length in Miles
VHB
Double
8
0
0
There is not a codeset domain for this attribute
Speed_Lim_Dif_Up
Speed_Lim_Dif_Up
Upstream Speed Limit Difference
VHB
Integer
4
0
0
The set of data values is not represented by a domain
fc_text
fc_text
Functional class description in text
Massachusetts Department of Transportation Office of Transportation Planning
String
255
0
0
The set of data values is not represented by a domain
mpo_text
mpo_text
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
Massachusetts Department of Transportation Office of Transportation Planning
String
255
0
0
The set of data values is not represented by a domain
AADT_30_MAX_SCORE
AADT_30_MAX_SCORE
AADT between 30,000 and Max AADT per day
VHB
Double
8
0
0
The set of data values is not represented by a domain
Shape
Shape
Feature geometry.
Esri
Geometry
0
0
0
ESRI generated geometry
SPEED_LIMIT_30_SCORE
SPEED_LIMIT_30_SCORE
Posted Speed Limit of 30
VHB
Double
8
0
0
The set of data values is not represented by a domain
Route_ID
Route_ID
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
String
16
0
0
The set of data values is not represented by a domain
SEGMENT_IN_PVPC
SEGMENT_IN_PVPC
Segment is in PVPC
VHB
Double
8
0
0
The set of data values is not represented by a domain
From_Measure
From Measure
Beginning Point (Milepost as of today) Street From
VHB
Double
8
0
0
The set of data values is not represented by a domain
AADT_20_40_SCORE
AADT_20_40_SCORE
AADT between 20,000 and 40,000 vehicles per day
VHB
Double
8
0
0
The set of data values is not represented by a domain
To_Measure
To Measure
End Point (Milepost as of today) Street To
VHB
Double
8
0
0
The set of data values is not represented by a domain
WADOC_10_SCORE
WADOC_10_SCORE
Weighted average degree of curvature 10 or more degrees per 100 feet
VHB
Double
8
0
0
The set of data values is not represented by a domain
Route_System
Route System
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
String
3
0
0
The set of data values is not represented by a domain
SEGMENT_UNDIVIDED
SEGMENT_UNDIVIDED
Undivided segment
Massachusetts Department of Transportation Office of Transportation Planning
Double
8
0
0
The set of data values is not represented by a domain
Route_Number
Route_Number
The official route number designation; need not be exclusively numeric (E.g. 1A, 2A, 8A-L)
Massachusetts Department of Transportation Office of Transportation Planning
String
10
0
0
The set of data values is not represented by a domain
STABLE_SHOULDER
STABLE_SHOULDER
Stable shoulder
Massachusetts Department of Transportation Office of Transportation Planning
Double
8
0
0
The set of data values is not represented by a domain
Rd_Seg_ID
Road Segment ID
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
Integer
4
0
0
The set of data values is not represented by a domain
RS_CAT
Risk Category by Statewide
Category (Primary or Secondary) – Risk Category, Statewide
VHB
String
255
0
0
The set of data values is not represented by a domain
Facility
Facility
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
SmallInteger
2
0
0
|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
RS_TOTP
Normalized Risk Score
Normalized Risk Score – Normalized Risk Score (as a Percentage)
VHB
Double
8
0
0
The set of data values is not represented by a domain
F_Class
Functional Class
Functional Class (F_Class) 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
SmallInteger
2
0
0
|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 || ]|
Massachusetts Department of Transportation Office of Transportation Planning
jur_text
jur_text
Jurisdiction description in text
Massachusetts Department of Transportation Office of Transportation Planning
String
255
0
0
The set of data values is not represented by a domain
Jurisdictn
Jurisdiction
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
String
1
0
0
|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 || ]|
Massachusetts Department of Transportation Office of Transportation Planning
ft_text
ft_text
Facility type description in text
Massachusetts Department of Transportation Office of Transportation Planning
String
255
0
0
The set of data values is not represented by a domain
City
City
The city in which a road is located. City ID numbers are assigned alphabetically with Abington as
1 and Yarmouth as 351 with the exception of Aquinnah at 104
Massachusetts Department of Transportation Office of Transportation Planning
SmallInteger
2
0
0
The set of data values is not represented by a domain
DistrictNa
District Name
The MassDOT Highway District boundary the segment is located within
Massachusetts Department of Transportation Office of Transportation Planning
String
10
0
0
The set of data values is not represented by a domain
Shldr_Rt_T
Shoulder Type Right
Right Shoulder Type A shoulder is used to describe a section of road that is specifically set aside for road users not
travelling with the flow of traffic. This could be an emergency break down or stopping area, but is
not referring to private property like a yard.
• 0 = No Shoulder
• 1 = Stable - Unruttable compacted subgrade
• 2 = Unstable shoulder
• 3 = Hardened bituminous mix or penetration
• 4 = Combination shoulder
Massachusetts Department of Transportation Office of Transportation Planning
SmallInteger
2
0
0
The set of data values is not represented by a domain
TOWN
TOWN
The town boundary the segment is located within
Massachusetts Department of Transportation Office of Transportation Planning
String
21
0
0
The set of data values is not represented by a domain
Shape_Length
Shape Length
Shape length
Esri
Double
8
0
0
Positive real numbers that are automatically generated.
Seg_length
Segment Length in Miles
Segment Length in Miles
VHB
Double
8
0
0
The set of data values is not represented by a domain
Lt_Sidewlk
Left Sidewalk Width
Left Sidewalk Width
Massachusetts Department of Transportation Office of Transportation Planning
SmallInteger
2
0
0
The set of data values is not represented by a domain
FIRST_UNIQUE_ID
Street Name
String
100
0
0
Unique ID used for dissolve
VHB
The set of data values is not represented by a domain
Urban_Type
Right Sidewalk Presence
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
St_Name
Street Name
Street Name
Massachusetts Department of Transportation Office of Transportation Planning
String
100
0
0
The set of data values is not represented by a domain
Rt_Sidewlk
Right Sidewalk Width
Right Sidewalk Width
Massachusetts Department of Transportation Office of Transportation Planning
SmallInteger
2
0
0
The set of data values is not represented by a domain
Speed_Lim
Speed_Limit
Speed Limit
Massachusetts Department of Transportation Office of Transportation Planning
SmallInteger
2
0
0
The set of data values is not represented by a domain
MPO
MPO ID
Metropolitan Planning Organization
Massachusetts Department of Transportation Office of Transportation Planning
SmallInteger
2
0
0
|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
FROMADDRESS
MPO Text
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
Simple
FALSE
82446
TRUE
TRUE