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Although MassGIS has served trails information from the Department of Conservation and Recreation (DCR) for many years, this new Trails layer is MassGIS’ first attempt at a statewide, multi-sourced dataset. This layer was created from two primary sources, DCR Trailsand the Metropolitan Area Planning Council’s (MAPC) Trailmap. Additionally, a few other trail networks were added from Open Street Map (OSM), municipalities, and conservation organizations, but the amount of information from these sources is relatively small.
This trails dataset was created for use in the State 9-1-1 Department’s mapping application Response Assist and is intended to assist telecommunicators with lost hikers as well as potentially responding to emergencies within remote areas. Because the layer is primary being used by 9-1-1, it was decided to focus on those trails found in wilderness areas and used as hiking trails. This resulted in the omission of many arcs from the source data. Examples of these include cart paths on golf courses, the network of paved paths on school campuses, sidewalks, and many other arcs that could functionally serve as trails but were in relatively open and developed areas.
MassGIS will maintain the Trails data as part of the 9-1-1 project and refresh it weekly. The number of updates will vary depending on the frequency of inputs from 9-1-1 staff and public sources.
There are many missing trails from this layer and it is hoped that it becomes more complete over time. If you would like to submit trails for inclusion in this dataset, please email MassGIS at Notify911Address@mass.gov.
MassGIS stores the data as MAD.TRAILS_SV_PUBLIC. It is a spatial view based on MAD.TRAILSwhere FOR_VWP = 'Y'.
The following tables from the US Census Bureau were used to compile the updated 2020 EJ datalayer, released in November, 2022:
Minority population:
2020 Census Redistricting Data: Table P2: HISPANIC OR LATINO, AND NOT HISPANIC OR LATINO BY RACE
pct_minority_P2 = ((Total pop P2_001N - Not Hispanic or Latino:Population of one race:White alone P2_005N) / Total P2_001N) * 100
Median Household Income (block groups, municipalities and state)
American Community Survey 2020 5-year estimates: Table B19013: MEDIAN HOUSEHOLD INCOME IN THE PAST 12 MONTHS (IN 2020 INFLATION-ADJUSTED DOLLARS)
Limited English Households:
American Community Survey 2020 5-year estimates: Table C16002: HOUSEHOLD LANGUAGE BY HOUSEHOLD LIMITED ENGLISH SPEAKING STATUS
limEngHH = Total:Spanish:limited English speaking household C16002_004E + Total:Other Indo-European languages:limited English speaking household C16002_007E + Total:Asian and Pacific Island languages:Limited English speaking household C16002_010E + Total:Other languages:Limited English speaking household C16002_013E)
limEngHHpct = (limEngHH / TotalHH C16002_001E) * 100
Additional data adjustments:
1. Block groups with a total population of fewer than 50 were removed.
2. 228 2020 block groups have no MHHI in 2020 ACS table.130 of these did have a value in the 2019 ACS table so the 2019 BG MHHI and PCT BG MHHI (so the 2019 value for MA MHHI is used) were transferred to 130 BGs in the 2020 update. Those BGs are coded with ‘1’ in BG_MHHI_is_2019 This leaves 96 block groups with an unknown and not substituted 2020 BG MHHI
5 of these are in towns with a muni MHHI > 150% of the MA MHHI. These are not designated as EJ.
43 of the remaining are designated as EJ with the M and/or E criteria
16 of the remaining have a population in EJ group quarters > 50%
16 of the remaining have a total population < 50
This leaves 16 block groups that may be EJ for income but no data are available to determine this. These are coded as EJ = No and median_household_income = ‘U’.