Description: The political boundary datalayer is a 1:25,000 scale datalayer containing the boundaries of the 351 communities (cities and towns) in Massachusetts. The seaward boundary of coastal communities has been defined at mean high water in this datalayer. The datalayer is named TOWNS_POLY. Note that the 351 communities are the official municipal names, not including "villages" or other sections of towns. This layer includes single-part features, where offshore islands are separate features from the mainland, although the attributes are the same for all features in one municipality.This datalayer, except the coastline, was digitized by MassGIS from a set of stable based film prints of the 1:25,000 7.5' quadrangles purchased from the USGS by the Massachusetts Dept. of Public Works. The coastline was taken from the USGS 1:100,000 hydrography DLG database. It was selected visually and appended to the digitized town boundaries.
Description: The political boundary datalayer is a 1:25,000 scale datalayer containing the boundaries of the 351 communities (cities and towns) in Massachusetts. The seaward boundary of coastal communities has been defined at mean high water in this datalayer. The datalayer is named TOWNS_POLY. Note that the 351 communities are the official municipal names, not including "villages" or other sections of towns. This layer includes single-part features, where offshore islands are separate features from the mainland, although the attributes are the same for all features in one municipality.This datalayer, except the coastline, was digitized by MassGIS from a set of stable based film prints of the 1:25,000 7.5' quadrangles purchased from the USGS by the Massachusetts Dept. of Public Works. The coastline was taken from the USGS 1:100,000 hydrography DLG database. It was selected visually and appended to the digitized town boundaries.
Description: EJSCREEN is an environmental justice (EJ) screening and mapping tool that provides EPA with a nationally consistent dataset and methodology for calculating "EJ indexes," which can be used for highlighting places that may be candidates for further review, analysis, or outreach as the agency develops programs, policies and other activities. The tool provides both summary and detailed information at the Census block group level or a user-defined area for both demographic and environmental indicators. The summary information is in the form of EJ Indexes which combine demographic information with a single environmental indicator (such as proximity to traffic) that can help identify communities living in areas with greater potential for environmental and health impacts. The tool also provides additional detailed demographic and environmental information to supplement screening analyses. EJSCREEN displays this information in color-coded maps, bar charts, and standard reports. Users should keep in mind that screening tools are subject to substantial uncertainty in their demographic and environmental data, particularly when looking at small geographic areas, such as Census block groups. Data on the full range of environmental impacts and demographic factors in any given location are almost certainly not available directly through this tool, and its initial results should be supplemented with additional information and local knowledge before making any judgments about potential areas of EJ concern. The National-scale Air Toxics Assessment (NATA) environmental indicators and EJ indexes, which include cancer risk, respiratory hazard, neurodevelopment hazard, and diesel particulate matter will be added into EJSCREEN during the first full public update after the soon-to-be-released 2011 dataset is made available. All NATA associated indicator and index elements are currently set to "Null".
Description: Communities across Massachusetts are looking for ways to make walking and biking a safer, healthier, and more convenient way to get around. There is a growing movement toward the creation of “Complete Streets” designed to accommodate travelers of all ages, incomes, and abilities, whether they are walking, biking, riding transit, or in a car. As of June 2016, nearly one-fifth of the municipalities in Massachusetts have adopted Complete Streets policies and are participating in a Massachusetts Department of Transportation (MassDOT) program to implement those policies through capital investments. Given the urgent need and limited funds, it is critical for municipalities to focus and prioritize their investments where they will have the biggest impacts on safety, convenience, and congestion relief.While it is clear that investments should be made where they can benefit the greatest number of users, there are few measures of active transportation utility for any given stretch of road. As in, if this were a good place to walk or bike, would many people find it a useful route between point A and point B?Local Access is a tool developed to help answer this question. This measure provides a robust, quantitative estimate of current or potential roadway utility for walkers and bikers. The active transportation network utility score for each segment of roadway indicates how useful that street segment is for connecting residents with schools, shops, restaurants, parks, and transit stations.
Service Item Id: 79d278fc125245b0ad34d0b7e150592d
Copyright Text: MAPC; MassGIS; MassDOT; InfoGroup 2016; MassTravel Survey 2012 - trip generation equations for walk and bike. Info for mode choice; and trip distribution
Description: Communities across Massachusetts are looking for ways to make walking and biking a safer, healthier, and more convenient way to get around. There is a growing movement toward the creation of “Complete Streets” designed to accommodate travelers of all ages, incomes, and abilities, whether they are walking, biking, riding transit, or in a car. As of June 2016, nearly one-fifth of the municipalities in Massachusetts have adopted Complete Streets policies and are participating in a Massachusetts Department of Transportation (MassDOT) program to implement those policies through capital investments. Given the urgent need and limited funds, it is critical for municipalities to focus and prioritize their investments where they will have the biggest impacts on safety, convenience, and congestion relief.While it is clear that investments should be made where they can benefit the greatest number of users, there are few measures of active transportation utility for any given stretch of road. As in, if this were a good place to walk or bike, would many people find it a useful route between point A and point B?Local Access is a tool developed to help answer this question. This measure provides a robust, quantitative estimate of current or potential roadway utility for walkers and bikers. The active transportation network utility score for each segment of roadway indicates how useful that street segment is for connecting residents with schools, shops, restaurants, parks, and transit stations.
Service Item Id: 79d278fc125245b0ad34d0b7e150592d
Copyright Text: MAPC; MassGIS; MassDOT; InfoGroup 2016; MassTravel Survey 2012 - trip generation equations for walk and bike. Info for mode choice; and trip distribution
Description: Communities across Massachusetts are looking for ways to make walking and biking a safer, healthier, and more convenient way to get around. There is a growing movement toward the creation of “Complete Streets” designed to accommodate travelers of all ages, incomes, and abilities, whether they are walking, biking, riding transit, or in a car. As of June 2016, nearly one-fifth of the municipalities in Massachusetts have adopted Complete Streets policies and are participating in a Massachusetts Department of Transportation (MassDOT) program to implement those policies through capital investments. Given the urgent need and limited funds, it is critical for municipalities to focus and prioritize their investments where they will have the biggest impacts on safety, convenience, and congestion relief.While it is clear that investments should be made where they can benefit the greatest number of users, there are few measures of active transportation utility for any given stretch of road. As in, if this were a good place to walk or bike, would many people find it a useful route between point A and point B?Local Access is a tool developed to help answer this question. This measure provides a robust, quantitative estimate of current or potential roadway utility for walkers and bikers. The active transportation network utility score for each segment of roadway indicates how useful that street segment is for connecting residents with schools, shops, restaurants, parks, and transit stations.
Service Item Id: 79d278fc125245b0ad34d0b7e150592d
Copyright Text: MAPC; MassGIS; MassDOT; InfoGroup 2016; MassTravel Survey 2012 - trip generation equations for walk and bike. Info for mode choice; and trip distribution
Description: Communities across Massachusetts are looking for ways to make walking and biking a safer, healthier, and more convenient way to get around. There is a growing movement toward the creation of “Complete Streets” designed to accommodate travelers of all ages, incomes, and abilities, whether they are walking, biking, riding transit, or in a car. As of June 2016, nearly one-fifth of the municipalities in Massachusetts have adopted Complete Streets policies and are participating in a Massachusetts Department of Transportation (MassDOT) program to implement those policies through capital investments. Given the urgent need and limited funds, it is critical for municipalities to focus and prioritize their investments where they will have the biggest impacts on safety, convenience, and congestion relief.While it is clear that investments should be made where they can benefit the greatest number of users, there are few measures of active transportation utility for any given stretch of road. As in, if this were a good place to walk or bike, would many people find it a useful route between point A and point B?Local Access is a tool developed to help answer this question. This measure provides a robust, quantitative estimate of current or potential roadway utility for walkers and bikers. The active transportation network utility score for each segment of roadway indicates how useful that street segment is for connecting residents with schools, shops, restaurants, parks, and transit stations.
Service Item Id: 79d278fc125245b0ad34d0b7e150592d
Copyright Text: MAPC; MassGIS; MassDOT; InfoGroup 2016; MassTravel Survey 2012 - trip generation equations for walk and bike. Info for mode choice; and trip distribution
Description: Communities across Massachusetts are looking for ways to make walking and biking a safer, healthier, and more convenient way to get around. There is a growing movement toward the creation of “Complete Streets” designed to accommodate travelers of all ages, incomes, and abilities, whether they are walking, biking, riding transit, or in a car. As of June 2016, nearly one-fifth of the municipalities in Massachusetts have adopted Complete Streets policies and are participating in a Massachusetts Department of Transportation (MassDOT) program to implement those policies through capital investments. Given the urgent need and limited funds, it is critical for municipalities to focus and prioritize their investments where they will have the biggest impacts on safety, convenience, and congestion relief.While it is clear that investments should be made where they can benefit the greatest number of users, there are few measures of active transportation utility for any given stretch of road. As in, if this were a good place to walk or bike, would many people find it a useful route between point A and point B?Local Access is a tool developed to help answer this question. This measure provides a robust, quantitative estimate of current or potential roadway utility for walkers and bikers. The active transportation network utility score for each segment of roadway indicates how useful that street segment is for connecting residents with schools, shops, restaurants, parks, and transit stations.
Service Item Id: 79d278fc125245b0ad34d0b7e150592d
Copyright Text: MAPC; MassGIS; MassDOT; InfoGroup 2016; MassTravel Survey 2012 - trip generation equations for walk and bike. Info for mode choice; and trip distribution
Name: Average Daytime Land Surface Temperature (2019)
Display Field:
Type: Raster Layer
Geometry Type: null
Description: This image contains estimated land surface temperature in fahrenheit. Note that land surface temperature is distinct from air temperature. Areas with black pavement or tar roofs may have land surface temperatures far above the air temperature.
Service Item Id: 79d278fc125245b0ad34d0b7e150592d
Copyright Text: When using this dataset to create a map, please use the following abbreviated citation:
Created using Landsat TRS Tools (Walawender, Hajto, and Iwaniuk, 2012), USGS
When using this dataset in other research, please cite the following article in any resulting papers or publications:
Walawender J., Hajto M., Iwaniuk P., 2012, A new ArcGIS toolset for automated mapping of land surface temperature with the use of LANDSAT satellite data. Proc. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 22-27 July 2012, Munich, Germany, 4371-4374, doi: 10.1109/IGARSS.2012.6350405
Name: Average Daytime Land Surface Temperature (2017)
Display Field:
Type: Raster Layer
Geometry Type: null
Description: This image contains estimated land surface temperature in fahrenheit. Note that land surface temperature is distinct from air temperature. Areas with black pavement or tar roofs may have land surface temperatures far above the air temperature.
Service Item Id: 79d278fc125245b0ad34d0b7e150592d
Copyright Text: When using this dataset to create a map, please use the following abbreviated citation:
Created using Landsat TRS Tools (Walawender, Hajto, and Iwaniuk, 2012), USGS
When using this dataset in other research, please cite the following article in any resulting papers or publications:
Walawender J., Hajto M., Iwaniuk P., 2012, A new ArcGIS toolset for automated mapping of land surface temperature with the use of LANDSAT satellite data. Proc. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 22-27 July 2012, Munich, Germany, 4371-4374, doi: 10.1109/IGARSS.2012.6350405
Description: Created using Landsat TRS Tools, using a Landsat image taken on August 30, 2010. NDVI is a relative measure of how much vegetation is present in a particular pixel of the image. Landsat spatial resolution is 30m. The possible range for NDVI is from -1 to 1, with 1 being the highest amount of healthy vegetation possible, and -1 being the least.
Service Item Id: 79d278fc125245b0ad34d0b7e150592d
Copyright Text: Please use the following abbreviated citation on any maps produced using this data:
Created using Landsat TRS Tools (Walawender, Hajto, and Iwaniuk 2012), USGS
When using this layer for any research applications, please cite the following paper in any publications resulting from the analysis:
Walawender J., Hajto M., Iwaniuk P., 2012, A new ArcGIS toolset for automated mapping of land surface temperature with the use of LANDSAT satellite data. Proc. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 22-27 July 2012, Munich, Germany, 4371-4374, doi: 10.1109/IGARSS.2012.6350405
Description: The Fire Stations layer shows the point locations of Fire stations in the Commonwealth of Massachusetts. The Massachusetts Emergency Management Agency (MEMA) GIS Program in cooperation with the Regional Planning Agencies and participating communities created the data as part of the development of Homeland Security Data Layers. The layer is named FIRESTATIONS_PT_MEMA.
Description: This layer represents named passenger, commuter and freight train stations, as developed by the Central Transportation Planning Staff (CTPS). The data include the MBTA Commuter Rail stations. Stored in ArcSDE and distributed as a shapefile, the statewide layer is named TRAINS_NODE. Other related datasets include TRAINS_ARC (railroad lines) and TRAINS_RTE_TRAIN (MBTA Commuter Rail Routes).Data are current as of April 29, 2015.
Service Item Id: 79d278fc125245b0ad34d0b7e150592d
Copyright Text: Central Transportation Planning Staff, MassGIS
Description: EJSCREEN is an environmental justice (EJ) screening and mapping tool that provides EPA with a nationally consistent dataset and methodology for calculating "EJ indexes," which can be used for highlighting places that may be candidates for further review, analysis, or outreach as the agency develops programs, policies and other activities. The tool provides both summary and detailed information at the Census block group level or a user-defined area for both demographic and environmental indicators. The summary information is in the form of EJ Indexes which combine demographic information with a single environmental indicator (such as proximity to traffic) that can help identify communities living in areas with greater potential for environmental and health impacts. The tool also provides additional detailed demographic and environmental information to supplement screening analyses. EJSCREEN displays this information in color-coded maps, bar charts, and standard reports. Users should keep in mind that screening tools are subject to substantial uncertainty in their demographic and environmental data, particularly when looking at small geographic areas, such as Census block groups. Data on the full range of environmental impacts and demographic factors in any given location are almost certainly not available directly through this tool, and its initial results should be supplemented with additional information and local knowledge before making any judgments about potential areas of EJ concern. The National-scale Air Toxics Assessment (NATA) environmental indicators and EJ indexes, which include cancer risk, respiratory hazard, neurodevelopment hazard, and diesel particulate matter will be added into EJSCREEN during the first full public update after the soon-to-be-released 2011 dataset is made available. All NATA associated indicator and index elements are currently set to "Null".
T_RESP_D2
(
type: esriFieldTypeString, alias: EJ Index: Air Toxics Respiratory Hazard Index (%ile), length: 10
)
T_RESP_D6
(
type: esriFieldTypeString, alias: EJ Index with Supplementary Demographics: Air Toxics Respiratory Hazard Index (%ile), length: 10
)
T_RESP_B2
(
type: esriFieldTypeString, alias: Supplementary EJ Index 1 with Demographics: Air Toxics Respiratory Hazard Index (%ile), length: 10
)
T_RESP_B6
(
type: esriFieldTypeString, alias: Supplementary EJ Index 1 with Supplementary Demographics: Air Toxics Respiratory Hazard Index (%ile), length: 10
)
T_RESP_P2
(
type: esriFieldTypeString, alias: Supplementary EJ Index 2 with Demographics: Air Toxics Respiratory Hazard Index (%ile), length: 10
)
T_RESP_P6
(
type: esriFieldTypeString, alias: Supplementary EJ Index 2 with Supplementary Demographics: Air Toxics Respiratory Hazard Index (%ile), length: 10
)
T_PTRAF_D2
(
type: esriFieldTypeString, alias: EJ Index: Traffic Proximity and Volume (%ile), length: 10
)
T_PTRAF_D6
(
type: esriFieldTypeString, alias: EJ Index with Supplementary Demographics: Traffic Proximity and Volume (%ile), length: 10
)
T_PTRAF_B2
(
type: esriFieldTypeString, alias: Supplementary EJ Index 1 with Demographics: Traffic Proximity and Volume (%ile), length: 10
)
T_PTRAF_B6
(
type: esriFieldTypeString, alias: Supplementary EJ Index 1 with Supplementary Demographics: Traffic Proximity and Volume (%ile), length: 10
)
T_PTRAF_P2
(
type: esriFieldTypeString, alias: Supplementary EJ Index 2 with Demographics: Traffic Proximity and Volume (%ile), length: 10
)
T_PTRAF_P6
(
type: esriFieldTypeString, alias: Supplementary EJ Index 2 with Supplementary Demographics: Traffic Proximity and Volume (%ile), length: 10
)
T_PWDIS_D2
(
type: esriFieldTypeString, alias: EJ Index: Cumulative Direct Discharge Pollution (%ile), length: 10
)
T_PWDIS_D6
(
type: esriFieldTypeString, alias: EJ Index with Supplementary Demographics: Cumulative Direct Discharge Pollution (%ile), length: 10
)
T_PWDIS_B2
(
type: esriFieldTypeString, alias: Supplementary EJ Index 1 with Demographics: Cumulative Direct Discharge Pollution (%ile), length: 10
)
T_PWDIS_B6
(
type: esriFieldTypeString, alias: Supplementary EJ Index 1 with Supplementary Demographics: Cumulative Direct Discharge Pollution (%ile), length: 10
)
T_PWDIS_P2
(
type: esriFieldTypeString, alias: Supplementary EJ Index 2 with Demographics: Cumulative Direct Discharge Pollution (%ile), length: 10
)
T_PWDIS_P6
(
type: esriFieldTypeString, alias: Supplementary EJ Index 2 with Supplementary Demographics: Cumulative Direct Discharge Pollution (%ile), length: 10
)
Description: MassGIS has produced a statewide surficial geology datalayer showing the location of sand and gravel deposits. Originally the data were divided into three panels- west, east, and southeast that correspond to the U.S. Geological Survey 1:250,000 map sheets that were used as a basemap. This datalayer is very generalized when compared to the other MassGIS data. MassGIS uses the surficial geology data only to produce volume or area measurements over a large region, e.g. a drainage basin. It is not accurate for site specific analysis.As part of a major data development effort, the datalayer has been greatly enhanced. The data include areas of fine-grained deposits and floodplains. For the original southeast panel, the 1:250,000 Providence, RI sheet, large sand deposits have also been delineated. Additionally, contour lines indicating depth of sand and gravel deposits have also been added.The layer is named SURFGEO250K_POLY.
Description: OverviewThese Surface Water Supply Protection Areas delineate those areas included in 310 CMR 22.00, the Massachusetts Drinking Water Regulations, as Surface Water Supply Protection Zones:ZONEA: represents a) the land area between the surface water source and the upper boundary of the bank; b) the land area within a 400 foot lateral distance from the upper boundary of the bank of a Class A surface water source, as defined in 314 CMR 4.05(3)(a); and c) the land area within a 200 foot lateral distance from the upper boundary of the bank of a tributary or associated surface water body.ZONEB: represents the land area within one-half mile of the upper boundary of the bank of a Class A surface water source, as defined in 314 CMR 4.05(3)(a), or edge of watershed, whichever is less. Zone B always includes the land area within a 400 ft lateral distance from the upper boundary of the bank of a Class A surface water source.ZONEC: represents the land area not designated as Zone A or B within the watershed of a Class A surface water source, as defined in 314 CMR 4.05(3)(a).All active and inactive surface water supplies have zones delineated, but some may be covered by other legislation. MassDEP protection Zones A, B, & C are in effect at MWRA sources and are subject to the protections in 310 CMR 22.00. MWRA has additional protections for their reservoirs that are included in the Massachusetts Watershed Protection Act, MGL 350 CMR 11.00. Watershed extents for all surface water supplies including active, inactive, emergency, sources outside of Massachusetts, watersheds that extend into other states and watersheds of sources from other states that extend into Massachusetts are included in the datalayer SWP Watersheds. Surface water intakes on Class B Rivers are not included in either datalayer. The reservoir features were taken from the DEP Wetlands 1:12,000 datalayer and removed from the Zone A and B features and added as a separate feature. For MassDEP's regulatory wording of these zones please see Water Supply Protection Area Definitions.This layer, named SWP_ZONES_POLY, replaces the now discontinued MassDEP ZONEA_POLY, ZONEB_POLY and ZONEC_POLY layers.MethodologyThose areas that contribute to public surface water supplies were originally taken from the USGS Drainage Sub Basins datalayer and overlaid with the 1:25,000 Hydrography datalayer to identify reservoirs and tributary streams. The reservoirs were extracted and buffered to produce Zone B’s, reservoirs and tributaries were extracted and buffered to produce Zone A’s, and sub basins were extracted to create Zone C’s. Starting in 2003, the DEP GIS Program began using the elevation control points and breaklines from the 1:5,000 Digital Orthophoto Project to create a digital elevation model of a surface water supply watershed, and using the ArcHydro Toolset developed by ESRI and the University of Texas GIS Water Resources Consortium delineated watersheds digitally.. These basins were then field checked by MassDEP Drinking Water Program staff and edits made when necessary. Additional streams were extracted from the DEP Wetlands 1:12,000 datalayer, added to the USGS 1:25,000 Hydrography datalayer and buffered to create extended Zone A’s. This work is ongoing and is about 35% complete, with watersheds prioritized by perceived accuracy or if threats to the watershed are identified, with work now progressing in Essex County. Please refer to the delineation type and date fields to see which watersheds have been processed. In addition to this in 2007 the reservoir polygons were extracted from the DEP Wetlands 1:12000 datalayer and used to modify the Zone A and B buffers, and were added to the USGS 1:25000 Hydrography datalayer to allow it to accurately align with the buffer zones. While many of the watersheds are based on USGS Drainage Sub Basins, no attempt has been made to align the existing sub basins with the terrain delineated watersheds and zones, including errors in major basin divides. The attributes relating to water supply zones in the existing USGS Drainage Sub Basins have been removed.