20260717
18032700
1.0
FALSE
HSIPIntersectionClustersYear_Year_25Meters
002
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_StatePlane_Massachusetts_Mainland_FIPS_2001
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20211203
10155000
20211203
10155000
Bonnie Polin
Mass DOT Highway Safety and Engineering
Manager
18673689636
10 Park Plaza
Boston
MA
02116
bonnie.polin@state.ma.us
20200506
ArcGIS Metadata
1.0
MASSDOT.DBO.HSIP_Intersection_Crash_Clusters_2015_2017
2020-02-26
Mass DOT Highway Safety and Engineering, Manager, Bonnie Polin,
vector digital data
The top locations where reported collisions occurred at intersections have been identified. The crash cluster analysis methodology for the top intersection clusters uses a fixed meter search distance of 25 meters (82 ft.) to merge crash clusters together. This analysis was based on crashes where a police officer specified one of the following junction types: Four way intersection, T-intersection, Y-intersection, five point or more. Furthermore, the methodology uses the Equivalent Property Damage Only (EPDO) weighting to rank the clusters. EPDO is based any type of injury crash (including fatal, incapacitating, non-incapacitating and possible) having a weighting of 21 compared to a property damage only crash (which has weighting of 1). The clustering analysis used crashes from the three year period from 2015-2017. The area encompassing the crash cluster may cover a larger area than just the intersection so it is critical to view these spatially.
2015-2017 Highway Safety Improvement Program (HSIP) Top Crash Cluster Locations. This layer shows the top 5% of intersection crash clusters for all Regional Planning Areas between the years of 2015-2017. These are used to identify eligible HSIP projects or to identify the top crash intersections in the Regional Planning Areas.
Massachusetts Department of Transportation Office of Planning
freeways
median
road inventory
functional classification
functional class
roads
routes
lanes
local roads
mileage
traffic count
collectors
speed limit
major streets
ADT
sidewalks
major roads
highways
streets
Chapter 90
transportation
ISO 19115 Topic Categories
freeways
median
road inventory
functional classification
functional class
roads
routes
lanes
local roads
mileage
traffic count
collectors
speed limit
major streets
ADT
sidewalks
major roads
highways
streets
Chapter 90
transportation
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.
Esri ArcGIS 12.4.2.19948
true
-70.607787
-70.519260
41.451698
41.390708
Massachusetts 2008-2017
2008-01-01
2017-12-31
The data contained represents only relevant crash information based on the data collected and the processes used to define and display the data.
The data only includes crash information collected by the RMV within the specified time range.
The data contained represents only relevant crash information based on the data collected and is part of an ongoing series of event layers recording this data for the specified time range.
2020-02-26
0
MASSDOT.DBO.HSIP_Intersection_Crash_Clusters_2015_2017
This is HSIP Eligible Bicycle Crash Clusters 2008-2017
MassDOT Highway Division
Feature Class
0
OBJECTID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
SHAPE
Feature geometry.
Esri
Coordinates defining the features.
Id
Sequential numbers for Object Identification
MassDOT Highway Division
CrashCount
Number of located bicyclist crashes within 100 Meter cluster
MassDOT Highway Division
GroupCode
Unique field generated in the cluster creation
MassDOT Highway Division
L1STREET
Longest street within the cluster
MassDOT Highway Division
L2STREET
Second longest street within the cluster
MassDOT Highway Division
L1STREETRT
Longest route within the cluster
MassDOT Highway Division
L2STREETRT
Second longest route within the cluster
MassDOT Highway Division
FC1STREET
Street with highest functional class within the cluster
MassDOT Highway Division
FC2STREET
Street with second highest functional class within the cluster
MassDOT Highway Division
FC1STREETR
Route information for street with highest functional class within the cluster
MassDOT Highway Division
FC2STREETR
Route information for street with second highest functional class within the cluster
MassDOT HIghway Division
RPAS
Regional planning agency/agencies where the cluster is located
MassDOT Highway Division
NUM_K_A
Number of fatal and serious injury crashes within the cluster
MassDOT HIghway Division
NUM_B_C
Number of non-incapacitating injury and possible injury crashes within the cluster
MassDOT Highway Division
NUM_O
Number of non injury crashes within the cluster (property damage only)
MassDOT Highway Division
EPDO
Equivalent Property Damage Only crashes within the cluster
MassDOT Highway Division
TOP_5_TOWN
Town the crash cluster is located within. The crash cluster represents the top 5% of the 10 year bicycle crash clusters that have occurred in the Town.
MassDOT Highway Division
TOP_5_RPA
Regional Planning Agency the crash cluster is located within. The crash cluster represents the top 5% of the 10 year bicycle crash clusters that have occurred in the RPA.
MassDOT Highway Division
TOWNS
Town(s) where the cluster is located
MassDOT Highway Division
MASSDOT
MassDOT district(s) where the cluster is located
MassDOT Highway Division
NUM_KABC
Number of all injury type crashes within the cluster to include fatal, incapacitating, non-incapacitating, and possible injuries
MassDOT Highway Division
SHAPE_Length
SHAPE_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
SHAPE_Area
SHAPE_Area
Double
8
0
0
Area of feature in internal units squared.
Esri
Positive real numbers that are automatically generated.
File Geodatabase Feature Class
dataset
EPSG
2.1(3.0.1)
Simple
FALSE
0
TRUE
FALSE