These layers display the approximate location of the plan sheets of state highway layout plans and state highway alteration plans. This layer is not intended to be used in any way to precisely locate the baseline or the sidelines of highway layouts. The highways shown on this layer are the state highways under the jurisdiction of the Massachusetts Department of Transportation Highway Division. Some MassDOT projects included work outside state highway limits. As a result, other highway/roadway layouts shared on this layer represent portions of other state agency/department/authority roadways, portions of county highways, or portions of municipal roadways.

March 2023

The Massachusetts Department of Transportation Highway Division Road Inventory contains the spatial linework for all the public and a good portion of the private roadways in Massachusetts, along with roadway attributes covering the roadway classification, ownership, physical conditions, traffic volumes, pavement conditions, highway performance monitoring information, and more. This version has been processed by CTPS to eliminate overlaps among features in the original distributed by MassDOT and to add pavement data, which is no longer attached by MassDOT.

This layer represents all the public and many of the private roadways in Massachusetts, including designations for Interstate, U.S. and State routes. Formerly known as the Massachusetts Highway Department (MHD) Roads, then the Executive Office of Transportation - Office of Transportation Planning (EOT-OTP) Roads, the MassDOT roads layer includes linework from the 1:5,000 road and rail centerlines data that were interpreted as part of the 1990s Black and White Digital Orthophoto project. The Massachusetts Department of Transportation - Office of Transportation Planning, which maintains this layer, continues to add linework from municipal and other sources and update existing linework using the most recent color ortho imagery as a base. The attribute table includes many "road inventory" items maintained in MassDOT's linear referencing system. The data layer published in November 2018 is based on the MassDOT 2017 year-end Road Inventory layer and results of a 2014-2015 MassDOT-Central Transportation Planning Staff project to conflate street names and other attributes from MassGIS' "base streets" to the MassDOT Road Inventory linework. The base streets are continually maintained by MassGIS as part of the NextGen 911 and Master Address Database projects. MassGIS staff reviewed the conflated layer and added many base street arcs digitized after the completion of the conflation work. MassGIS added several fields to support legacy symbology and labeling. Other edits included modifying some linework in areas of recent construction and roadway reconfiguration to align to 2017-2018 Google ortho imagery, and making minor fixes to attributes and linework.In ArcSDE this layer is named EOTROADS_ARC.From this data layer MassGIS extracted the Major Roads and Major Highway Routes layers.

This polygon data layer contains the six Massachusetts Department of Transportation (MassDOT) Highway Districts in the Commonwealth of Massachusetts. The districts supervise all construction within its jurisdiction; performs on-site engineering; implements maintenance and preventative maintenance programs; generates proposals for maintenance and construction work; and provides engineering support to cities and towns.ProductionThe bounds of the MassDOT Highway Districts were digitized from the MassGIS survey-level town boundaries. In addition to the polygon layer, there is an arc layer following the same line work as the polygon included in the downloadable shape file.MetadataStatusThis data is current as of September 2013.

Edge of roadway pavement polygons in Easton, Massachusetts. Compiled from 2017 vector mapping project conducted by WSP. The aerial photographic mission was carried out on April 12, 2017. The vector data was collected at scale of 1"= 40'.

This is a point feature layer of all sign assets along highways in Massachusetts. each point represents a sign feature at a specific location. Each sign contains a variety of attribute information including an identifier, physical characteristics, Manual on Uniform Traffic Control Devices (MUTCD) relevant information, service status, and any relevant support information.

The intended dual purpose of MassGIS’ efforts in processing this data is to both create a geocoding resource that can supplement the addressing data available in its Master Address Database, and compile a comprehensive set of Census Bureau road features for map display, query, and analysis. Linear road features attributed with street names, address ranges, and other useful information have been generated from a combination of Census Bureau layers. A full list of the various Census 2020 TIGER/Line layers available for download can be found in this summary. See the datalayer metadata for full details.Map service also available.

This political boundary layer is the most accurate representing the city and town boundaries in the Commonwealth of Massachusetts.

This datalayer has been created from latitude and longitude coordinates found in the 68-volume Harbor and Lands Commission Town Boundary Atlas. This Atlas series, and updates since it was published, describes the legal boundary for each of the 351 municipalities in Massachusetts. These coordinates were recorded from surveys of the location of each boundary marker around the periphery of each community. Each survey was tied into higher order monumented survey control points. The Atlases also include detailed descriptions of each community's boundary and location maps for each of the original boundary marker locations. The original surveys were conducted in the 1890s. The Atlas series was published in the early 1900s and has since been updated by the Survey Section of the Massachusetts Highway Department with changes as they are approved by the legislature. MassGIS staff collaborated closely with staff from the Survey Section during the development of this data layer. MassGIS staff keyed the coordinates into a database; that data entry was double-checked by staff from the Survey Section. Staff from the Survey Section then converted the latitude/longitude coordinates to the NAD83 datum and also created a version of the coordinates in state plane coordinates with units of meters. MassGIS used the state plane coordinates to "generate" points in ArcGIS. Boundary arcs from the existing USGS-derived municipal boundary data layer were then snapped to the survey-derived points. The differences between the municipal boundary arcs digitized from those on the USGS quads and those created by snapping to the survey-derived coordinates are typically plus or minus 12 feet, although these differences are sometimes less and sometimes more. Some municipal boundary arcs (about 15% of the total) follow the edge of a road or rail right-of-way or a stream or river channel. In these cases, the new boundary arcs were "heads up" digitized based on features visible on the statewide 1:5,000 color orthos from imagery flown in 2001.

For communities with a coastal boundary, MassGIS collaborated with the Massachusetts Water Resources Authority and the Department of Environmental Protection to complete a 1:12,000 scale coastline.

City/Town names' labels are included in this service.

(This service was published from a map document using the Web Mercator projection for the data frame.)

For full metadata please see http://www.mass.gov/itd/townsurvey.

This data layer contains the name and location of roads that the Federal Highway Administration has designated as Scenic Byways within the Commonwealth of Massachusetts. The Scenic Byways program supports roads that have outstanding scenic, historic, cultural, natural, recreational, and archaeological qualities.

This EnviroAtlas dataset estimates green space along walkable roads. Green space within 25 meters of the road centerline is included and the percentage is based on the total area between street intersections. Green space provides valuable benefits to neighborhood residents and walkers by providing shade, improved aesthetics, and outdoor gathering spaces. This dataset was produced by the US EPA to support research and online mapping activities related to EnviroAtlas. EnviroAtlas (https://www.epa.gov/enviroatlas) allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the contiguous United States. The dataset is available as downloadable data (https://edg.epa.gov/data/Public/ORD/EnviroAtlas) or as an EnviroAtlas map service. Additional descriptive information about each attribute in this dataset can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets ).

This map service from MassGIS contains points for the limited access highway exit and interchange locations in Massachusetts. The exit numbers include the updates from the 2020-21 mileage-based exit renumbering project.The two statewide point feature classes in the service are:

Exits - One point at each off-ramp, located approximately at the "gore point" (the triangular area of space between the through travel lanes and the off-ramp) or where the exit lane begins. Includes the letter ('A' and 'B', e.g.) designations for north/south, east/west.Interchanges - One point for each junction where there is a unique exit number. The points are located at the approximate midpoint of the interchange and represent all the ramps with that exit number. In most cases these include only the numeric portion of the exit number.See layer metadata.Feature service is also available.

This EnviroAtlas dataset estimates tree cover along walkable roads. The road width is estimated for each road and percent tree cover is calculated in a 8.5 meter strip beginning at the estimated road edge. Percent tree cover is calculated for each block between road intersections. Tree cover provides valuable benefits to neighborhood residents and walkers by providing shade, improved aesthetics, and outdoor gathering spaces. This dataset was produced by the US EPA to support research and online mapping activities related to EnviroAtlas. EnviroAtlas (https://www.epa.gov/enviroatlas) allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the contiguous United States. The dataset is available as downloadable data (https://edg.epa.gov/data/Public/ORD/EnviroAtlas) or as an EnviroAtlas map service. Additional descriptive information about each attribute in this dataset can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets).

City of Cambridge, MA, GIS basemap development project encompasses the land area of City of Cambridge with a 200-foot fringe surrounding the area and Charles River shoreline towards Boston. The basemap data was developed at 1" = 40' mapping scale using digital photogrammetric techniques. Planimetric features; both man-made and natural features like vegetation, rivers have been depicted. These features are important to all GIS/mapping applications and publication. A set of data layers such as Buildings, Roads, Rivers, Utility structures, 1 ft interval contours are developed and represented in the geodatabase. The features are labeled and coded in order to represent specific feature class for thematic representation and topology between the features is maintained for an accurate representation at the 1:40 mapping scale for both publication and analysis. The basemap data has been developed using procedures designed to produce data to the National Standard for Spatial Data Accuracy (NSSDA) and is intended for use at 1" = 40 ' mapping scale. Where applicable, the vertical datum is NAVD1988.Explore all our data on the Cambridge GIS Data Dictionary.Attributes NameType DetailsDescription TYPE type: Stringwidth: 50precision: 0 Type of road (paved, unpaved, alley, traffic island, ect)

EditDate type: Stringwidth: 4precision: 0

GRADE type: Stringwidth: 50precision: 0

created_date type: Datewidth: 8precision: 0

last_edited_date type: Datewidth: 8precision: 0

Formerly known as the Massachusetts Highway Department (MHD) Roads, then the Executive Office of Transportation - Office of Transportation Planning (EOT-OTP) Roads, the MassGIS-MassDOT Roads layer includes linework from the 1:5,000 road and rail centerlines data that were interpreted as part of the 1990's Aerial Imagery project. The Massachusetts Department of Transportation - Office of Transportation Planning, which maintains the primary source for this layer, continues to add linework from municipal and other sources and update existing linework using the most recent aerial ortho imagery as a base. The attribute table includes many "road inventory" fields maintained in MassDOT's linear referencing system.The current MassGIS-MassDOT hybrid data layer was first published in November 2018, based on the MassDOT 2017 year-end Road Inventory layer and results of a 2014-2015 MassDOT-Central Transportation Planning Staff project to conflate street names and other attributes from MassGIS' "base streets" to the MassDOT Road Inventory linework. The base streets are continually maintained by MassGIS as part of the NextGen 911 and Master Address Database (MAD) projects. MassGIS staff reviewed the conflated layer and added many base street arcs digitized after the completion of the conflation work. MassGIS added several fields to support legacy symbology and labeling. Other edits included modifying some linework in areas of recent construction and roadway reconfiguration to align to 2017-2018 Google ortho imagery, and making minor fixes to attributes and linework. MassGIS continues to modify the layer as needed, modifying the linework using the latest aerial imagery and adding line features from the base street arcs.From this data layer MassGIS extracted Major Roads and Major Highway Routes layers.See full metadata

A collection of historic traffic count data and guidelines for how to collect new data for Massachusetts Department of Transportation (MassDOT) projects.

The four adjacent Outer Cape communities of Eastham, Truro, Provincetown, and Wellfleet have built an intermunicipal partnership to pursue a regional approach to shoreline management. This partnership promotes short- and long-term science-based decisions that will maximize the effectiveness and efficiency of community responses to the increased threat of coastal hazards. This map set is a product of that partnership, the Intermunicipal Shoreline Management Project, a project first initiated in 2019 with funding from CZM's Coastal Resilience Grant Program.Extreme coastal flooding events threaten low-lying areas and roadways of the Outer Cape. To assist with short-term storm preparation and mitigation planning, low-lying roadways have been identified for the 4-town planning area using methodology developed by CCS to evaluate storm tide pathways (STPs). Vulnerable areas were identified at an inundation scenario representing a total water level higher than the current storm of record for Provincetown, MA. This storm produced a total water level of 9.77 ft. NAVD88 in Provincetown Harbor on January 4th, 2018. To capture the effects of this storm as well as future, possibly larger storms, a total water level of approximately 10.5 ft NAVD88 or 16 ft MLLW (10.1-10.5 ft NAVD88 for the planning area) was used. All roads with the potential to be affected by mapped STPs at this total water level have been identified and included in this general inventory of low-lying roadways.

Abstract National Roads is a digital representation of the road network of Australia. National Roads contains linear features to describe surfaces that have been improved to enable vehicular, pedestrian and bicycle transportation on land and ferry routes that enable vehicles to cross water bodies. National Roads does not include railways, tramways, driveways or passenger ferry routes. This dataset provides an optimised aggregated national view of road geometry and attribution. The dataset is created from multiple sources including jurisdictional data which is revised regularly and supplied in varying formats and at different levels of quality. The purpose of Roads is to provide a single national digital representation of Australian roads with detailed attribution to enable clients to undertake activities including visualisation, analysis and logistics planning at both a national and local scale. The area covers the land mass of Australia, including offshore islands. Norfolk Island is currently not included. Currency Date modified: November 2024 Modification frequency: Monthly Data Extent Spatial Extent West: 96° South: -44° East: 160° North: -9° Source Information The data was obtained from Geoscape Australia. Geoscience Australia is providing this data to the public under a Creative Commons Attribution 4.0 license. Geoscience Australia catalog entry: National Roads Lineage Statement National Roads provides a single national digital view of road centrelines across the entirety of Australia. Roads is continuously built through sourcing a broad range of datasets from many organisations. This data is quality assured, standardised, integrated and topology-corrected before publication. Road centrelines are primarily sourced from State and Territory governments and form the basis for the Roads network. Roads additional to the State and Territory provisions are digitised or integrated where reliable sources of road centrelines are identified that improves the quality and/or consistency of Roads nationally. For attribution of Roads data sources refer to this webpage: geoscape.com.au/legal/data-copyright-and-disclaimer/. The Digital Atlas of Australia team have published a hosted feature layer for National roads and a subset dataset called Major Roads in GDA2020 format. Data Dictionary

Attribute Name Description

road_id Persistent identifier for a roads feature

contributor_id The contributor’s identifier for a Roads segment

jurisdictional_control The Jurisdiction with control of the road as defined by the source State or Territory Jurisdiction (e.g. TRANSPORT FOR NEW SOUTH WALES)

operator The operator of the road

date_created Date this record was created in the data custodian’s system. Where this date is not available, then the first date on which the feature was processed for inclusion within Roads

date_modified Date this record was last updated

national_route A route number to identify a route of National significance (e.g. C30)

state_route A route number to identify a route of State significance (e.g. A20)

full_street_name The full official road name, which is a concatenation of street_name, street_type, and street_suffix attributes (e.g. PARKES PLACE WEST)

street_name Name of the road (e.g. SMITH AND JOHN)

street_name_label Name of the road in Title Case (e.g. Smith and John)

street_type Type of road (e.g. ROAD, STREET, CIRCUIT, LANE)

street_type_label Type of road in Title Case (e.g. Road, Street)

street_suffix Suffix of road (e.g. WEST)

street_suffix_label Suffix of road in Title Case (e.g. West)

street_alias_name A secondary name of the road

street_alias_type A secondary type of the road

street_alias_suffix A secondary suffix of the road

feature_type The classification of a road according to its physical characteristics (e.g. MOTORWAY, SINGLE CARRIAGEWAY)

hierarchy Hierarchy of the road (e.g. NATIONAL OR STATE HIGHWAY)

subtype Physical type of a road (e.g. ROUNDABOUT)

ground_relationship The relationship the road has with the ground (e.g. ABOVE GROUND, ON GROUND, BELOW GROUND)

lane_count Number of physical lanes represented as a total count

lane_description Description of the physical lane count of a road

one_way Indicates if the road supports one-way or two-way traffic direction

status Lifecycle stage of a road (e.g. OPERATIONAL)

surface Surface of the road (e.g. SEALED)

trafficability Indicates the minimum type of vehicle advised to traverse the road (e.g. 2WD)

travel_direction Direction a vehicle is allowed to travel

speed Posted speed limit for the section of road to which it is attributed

state Indicates the State or Territory abbreviation of the jurisdiction its linear geometry predominantly intersects (e.g. NSW)

source The contributor source that has provided the record (e.g. NSW)

horizontal_accuracy The horizontal accuracy of the line feature in relation to the real-world location in metres

Contact Contact: Geoscience Australia clientservices@ga.gov.au

The VMTRoadInventory 2023 Is a version of the Road Inventory 2023 that contains Vehicle Miles Traveled (VMT) for the Road Inventory, in Massachusetts for the year 2023. The Road Inventory is a GIS-based asset management system for the state's highway transportation system. As such, its strengths are in describing the configuration and condition of public roads and rights-of-way. It is not designed to support route-finding (e.g., shortest path applications), nor is it designed to support geocoding (although in theory intersection-based geocoding could be set up on it). It is part of the official documentation of the state road system and is used to prepare the yearly Highway Performance Monitoring System (HPMS) report to the Federal Highway Administration (FHWA). It is a record of centerline and lane miles, which are the basis of state reimbursements to localities for road maintenance expenses (Chapter 90 funds).