{"@context":"https://schema.org","archive":{"base_url":"https://boston.fyi","csts_conformance":"provisional","csts_profile":"CSTS-01/ARCHIVE","name":"The Boston Archive","subject":"Boston, Massachusetts"},"canonical_url":"https://boston.fyi/dataset/boston-street-segments-sam-system","json_ld":{"@context":"https://schema.org","@graph":[{"@id":"https://boston.fyi/#archive","@type":"ArchiveOrganization","archiveHeld":{"@type":"ArchiveComponent","about":"Boston, Massachusetts","name":"The The Boston Archive holdings"},"conformsTo":"https://boston.fyi/standards/csts-01-reference-profile","description":"The Boston Archive is the authority source for one subject. It holds the public civic record of Boston, Massachusetts — its places, people, organizations, events, works, and objects; the documents and datasets that attest them; and the grey record of what people say about the city that no authority ever wrote down. Every record carries a stable identifier, a canonical address, a full provenance chain, and its version history. Every record resolves as a page for a person and as JSON for a machine.","email":"archive@boston.fyi","founder":{"@type":"Person","name":"LeMay Inc."},"foundingDate":"2026","name":"The Boston Archive","slogan":"The record of one city, held whole.","url":"https://boston.fyi"},{"@id":"https://boston.fyi/#website","@type":"WebSite","conformsTo":"https://boston.fyi/standards/csts-01-reference-profile","inLanguage":"en","name":"The Boston Archive","potentialAction":{"@type":"SearchAction","query-input":"required name=search_term_string","target":{"@type":"EntryPoint","urlTemplate":"https://boston.fyi/ask?q={search_term_string}"}},"publisher":{"@id":"https://boston.fyi/#archive"},"url":"https://boston.fyi"},{"@id":"https://boston.fyi/dataset/boston-street-segments-sam-system#provenance","@type":"CreativeWork","additionalProperty":[{"@type":"PropertyValue","name":"sourceCollection","value":"City of Boston Open Data Portal (Analyze Boston)"},{"@type":"PropertyValue","name":"licenseName","value":"Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0"},{"@type":"PropertyValue","name":"licenseOpenness","value":"public_domain"},{"@type":"PropertyValue","name":"retrievedAt","value":"2026-09-02T22:53:39.750164+00:00"},{"@type":"PropertyValue","name":"transformCount","value":2}],"creator":{"@type":"Organization","name":"City of Boston Open Data Portal (Analyze Boston)"},"creditText":"City of Boston","dateCreated":"2026-09-02T22:53:39.750164+00:00","isBasedOn":"https://data.boston.gov/dataset/boston-street-segments-sam-system","license":"https://opendatacommons.org/licenses/pddl/1-0/","name":"Provenance of Boston Street Segments (SAM System)"},{"@id":"https://boston.fyi/dataset/boston-street-segments-sam-system","@type":"Dataset","additionalProperty":[{"@type":"PropertyValue","name":"recordType","value":"Dataset"},{"@type":"PropertyValue","name":"fieldCount","value":38}],"conformsTo":"https://boston.fyi/standards/csts-01-reference-profile","creator":{"@type":"Organization","name":"Boston Maps"},"dateCreated":"2026-09-02T22:55:19.830504+00:00","dateModified":"2026-09-02T22:55:19.830504+00:00","description":"City of Boston street segments data from the Street Address Management (SAM) system. Updated nightly.","distribution":[{"@type":"DataDownload","additionalProperty":[{"@type":"PropertyValue","name":"preservation","value":"referenced"}],"contentUrl":"https://gisportal.boston.gov/arcgis/rest/services/SAM/Live_SAM_Address/FeatureServer/3","encodingFormat":"ArcGIS GeoServices REST API","isBasedOn":"https://gisportal.boston.gov/arcgis/rest/services/SAM/Live_SAM_Address/FeatureServer/3","name":"ArcGIS GeoServices REST API"},{"@type":"DataDownload","additionalProperty":[{"@type":"PropertyValue","name":"preservation","value":"referenced"},{"@type":"PropertyValue","name":"sha256","value":"c3e44b631158bb26962558b2e08b7376d687c579c86e768eba7520cdbf92403e"}],"contentSize":"7307207","contentUrl":"https://boston.fyi/artifact/dataset/c3/c3e44b631158bb26962558b2e08b7376d687c579c86e768eba7520cdbf92403e.csv","encodingFormat":"text/csv","isBasedOn":"https://data.boston.gov/dataset/b9b8b634-f28a-410f-9727-b53d0d006308/resource/6fa7932b-7bc8-42bc-9250-168d5f5dc1ad/download/boston_street_segments_sam_system.csv","name":"CSV"},{"@type":"DataDownload","additionalProperty":[{"@type":"PropertyValue","name":"preservation","value":"referenced"},{"@type":"PropertyValue","name":"sha256","value":"834e4752f0a71f8217d0f994f7fa645357f34c55da9c20cceda0a69f7428b014"}],"contentSize":"22441292","contentUrl":"https://boston.fyi/artifact/dataset/83/834e4752f0a71f8217d0f994f7fa645357f34c55da9c20cceda0a69f7428b014.geojson","encodingFormat":"application/geo+json","isBasedOn":"https://data.boston.gov/dataset/b9b8b634-f28a-410f-9727-b53d0d006308/resource/e850cfd2-2c6e-4af6-9ac4-e03019412d1e/download/boston_street_segments_sam_system.geojson","name":"GeoJSON"},{"@type":"DataDownload","additionalProperty":[{"@type":"PropertyValue","name":"preservation","value":"referenced"}],"contentUrl":"https://bostonopendata-boston.opendata.arcgis.com/maps/boston::boston-street-segments","encodingFormat":"text/html","isBasedOn":"https://bostonopendata-boston.opendata.arcgis.com/maps/boston::boston-street-segments","name":"HTML"},{"@type":"DataDownload","additionalProperty":[{"@type":"PropertyValue","name":"preservation","value":"referenced"},{"@type":"PropertyValue","name":"sha256","value":"b22bfd6d74bdf94c185c3edecc180b746910f2c032915a872b1ff2ca3186c914"}],"contentSize":"3095732","contentUrl":"https://boston.fyi/artifact/dataset/b2/b22bfd6d74bdf94c185c3edecc180b746910f2c032915a872b1ff2ca3186c914.kmz","encodingFormat":"application/vnd.google-earth.kml+xml","isBasedOn":"https://data.boston.gov/dataset/b9b8b634-f28a-410f-9727-b53d0d006308/resource/b87c3a16-8ff1-46e5-a6d9-107a5d53473b/download/boston_street_segments_sam_system.kmz","name":"KML"},{"@type":"DataDownload","additionalProperty":[{"@type":"PropertyValue","name":"preservation","value":"referenced"}],"contentUrl":"https://data.boston.gov/dataset/b9b8b634-f28a-410f-9727-b53d0d006308/resource/ddb88a96-ec8e-4819-bfd7-3c069022dc8b/download/boston_street_segments_sam_system.zip","encodingFormat":"application/zip","isBasedOn":"https://data.boston.gov/dataset/b9b8b634-f28a-410f-9727-b53d0d006308/resource/ddb88a96-ec8e-4819-bfd7-3c069022dc8b/download/boston_street_segments_sam_system.zip","name":"SHP"}],"encoding":{"@type":"MediaObject","contentUrl":"https://boston.fyi/dataset/boston-street-segments-sam-system.json","encodingFormat":"application/json"},"identifier":"urn:lemay:boston:dataset:boston-street-segments-sam-system","inLanguage":"en","includedInDataCatalog":{"@type":"DataCatalog","name":"The Boston Archive holdings","url":"https://boston.fyi/dataset"},"isPartOf":{"@id":"https://boston.fyi/#archive"},"license":"https://opendatacommons.org/licenses/pddl/1-0/","mainEntityOfPage":"https://data.boston.gov/dataset/boston-street-segments-sam-system","name":"Boston Street Segments (SAM System)","provenance":{"@id":"https://boston.fyi/dataset/boston-street-segments-sam-system#provenance"},"spatialCoverage":{"@type":"Place","name":"Boston, Massachusetts"},"url":"https://boston.fyi/dataset/boston-street-segments-sam-system","variableMeasured":[{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"SEGMENT_ID"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"L_F_ADD"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"L_T_ADD"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"R_F_ADD"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"R_T_ADD"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"STREET_ID"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"PRE_DIR"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"ST_NAME"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"ST_TYPE"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"SUF_DIR"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"ALTERNATE_NAME"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"CFCC"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"SPEEDLIMIT"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"ONEWAY"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"F_ZLEV"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"T_ZLEV"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"FT_COST"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"TF_COST"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"FT_DIR"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"TF_DIR"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"SHIELD"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"HWY_NUM"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"MUN_L"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"MUN_R"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"NBHD_L"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"NBHD_R"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"STATE00_L"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"STATE00_R"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"COUNTY00_L"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"COUNTY00_R"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"MCD00_L"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"MCD00_R"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"ZIP_L"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"ZIP_R"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"ownership"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"ROUTE_ID"},{"@type":"PropertyValue","description":"","measurementTechnique":"numeric","name":"Shape_Length"},{"@type":"PropertyValue","description":"","measurementTechnique":"text","name":"shape_wkt"}],"version":1},{"@id":"https://boston.fyi/dataset/boston-street-segments-sam-system#breadcrumbs","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","item":"https://boston.fyi","name":"The Boston Archive","position":1},{"@type":"ListItem","item":"https://boston.fyi/dataset","name":"Datasets","position":2},{"@type":"ListItem","item":"https://boston.fyi/dataset/boston-street-segments-sam-system","name":"Boston Street Segments (SAM System)","position":3}]}]},"json_url":"https://boston.fyi/dataset/boston-street-segments-sam-system.json","record":{"canonical_path":"/dataset/boston-street-segments-sam-system","created_at":"2026-09-02T22:55:19.830504Z","distributions":[{"byte_size":null,"format":"ArcGIS GeoServices REST API","id":137,"media_type":null,"preservation":"referenced","r2_key":null,"retrieved_at":null,"sha256":null,"source_url":"https://gisportal.boston.gov/arcgis/rest/services/SAM/Live_SAM_Address/FeatureServer/3","unavailable_reason":null},{"byte_size":7307207,"format":"CSV","id":134,"media_type":"text/csv","preservation":"referenced","r2_key":"dataset/c3/c3e44b631158bb26962558b2e08b7376d687c579c86e768eba7520cdbf92403e.csv","retrieved_at":"2026-09-02T22:55:29.709754Z","sha256":"c3e44b631158bb26962558b2e08b7376d687c579c86e768eba7520cdbf92403e","source_url":"https://data.boston.gov/dataset/b9b8b634-f28a-410f-9727-b53d0d006308/resource/6fa7932b-7bc8-42bc-9250-168d5f5dc1ad/download/boston_street_segments_sam_system.csv","unavailable_reason":null},{"byte_size":22441292,"format":"GeoJSON","id":133,"media_type":"application/geo+json","preservation":"referenced","r2_key":"dataset/83/834e4752f0a71f8217d0f994f7fa645357f34c55da9c20cceda0a69f7428b014.geojson","retrieved_at":"2026-09-02T22:55:26.918247Z","sha256":"834e4752f0a71f8217d0f994f7fa645357f34c55da9c20cceda0a69f7428b014","source_url":"https://data.boston.gov/dataset/b9b8b634-f28a-410f-9727-b53d0d006308/resource/e850cfd2-2c6e-4af6-9ac4-e03019412d1e/download/boston_street_segments_sam_system.geojson","unavailable_reason":null},{"byte_size":null,"format":"HTML","id":138,"media_type":"text/html","preservation":"referenced","r2_key":null,"retrieved_at":null,"sha256":null,"source_url":"https://bostonopendata-boston.opendata.arcgis.com/maps/boston::boston-street-segments","unavailable_reason":null},{"byte_size":3095732,"format":"KML","id":135,"media_type":"application/vnd.google-earth.kml+xml","preservation":"referenced","r2_key":"dataset/b2/b22bfd6d74bdf94c185c3edecc180b746910f2c032915a872b1ff2ca3186c914.kmz","retrieved_at":"2026-09-02T22:55:31.024987Z","sha256":"b22bfd6d74bdf94c185c3edecc180b746910f2c032915a872b1ff2ca3186c914","source_url":"https://data.boston.gov/dataset/b9b8b634-f28a-410f-9727-b53d0d006308/resource/b87c3a16-8ff1-46e5-a6d9-107a5d53473b/download/boston_street_segments_sam_system.kmz","unavailable_reason":null},{"byte_size":null,"format":"SHP","id":136,"media_type":"application/zip","preservation":"referenced","r2_key":null,"retrieved_at":null,"sha256":null,"source_url":"https://data.boston.gov/dataset/b9b8b634-f28a-410f-9727-b53d0d006308/resource/ddb88a96-ec8e-4819-bfd7-3c069022dc8b/download/boston_street_segments_sam_system.zip","unavailable_reason":null}],"field_count":38,"field_schema":[{"description":"","name":"SEGMENT_ID","type":"numeric"},{"description":"","name":"L_F_ADD","type":"numeric"},{"description":"","name":"L_T_ADD","type":"numeric"},{"description":"","name":"R_F_ADD","type":"numeric"},{"description":"","name":"R_T_ADD","type":"numeric"},{"description":"","name":"STREET_ID","type":"numeric"},{"description":"","name":"PRE_DIR","type":"text"},{"description":"","name":"ST_NAME","type":"text"},{"description":"","name":"ST_TYPE","type":"text"},{"description":"","name":"SUF_DIR","type":"text"},{"description":"","name":"ALTERNATE_NAME","type":"text"},{"description":"","name":"CFCC","type":"text"},{"description":"","name":"SPEEDLIMIT","type":"numeric"},{"description":"","name":"ONEWAY","type":"text"},{"description":"","name":"F_ZLEV","type":"text"},{"description":"","name":"T_ZLEV","type":"text"},{"description":"","name":"FT_COST","type":"numeric"},{"description":"","name":"TF_COST","type":"numeric"},{"description":"","name":"FT_DIR","type":"text"},{"description":"","name":"TF_DIR","type":"text"},{"description":"","name":"SHIELD","type":"text"},{"description":"","name":"HWY_NUM","type":"text"},{"description":"","name":"MUN_L","type":"text"},{"description":"","name":"MUN_R","type":"text"},{"description":"","name":"NBHD_L","type":"text"},{"description":"","name":"NBHD_R","type":"text"},{"description":"","name":"STATE00_L","type":"text"},{"description":"","name":"STATE00_R","type":"text"},{"description":"","name":"COUNTY00_L","type":"numeric"},{"description":"","name":"COUNTY00_R","type":"numeric"},{"description":"","name":"MCD00_L","type":"numeric"},{"description":"","name":"MCD00_R","type":"numeric"},{"description":"","name":"ZIP_L","type":"text"},{"description":"","name":"ZIP_R","type":"text"},{"description":"","name":"ownership","type":"text"},{"description":"","name":"ROUTE_ID","type":"text"},{"description":"","name":"Shape_Length","type":"numeric"},{"description":"","name":"shape_wkt","type":"text"}],"id":"fc1b6b22-0c94-49b9-82a4-adaf61b2ded4","keywords":["boston","boston segments","boston street segments","boston streets","bparc","centerlines","ckan","daily","road data","roads","segments","street centerlines","street data","street segments","streets"],"kind":"dataset","landing_page":"https://data.boston.gov/dataset/boston-street-segments-sam-system","provenance":{"attribution":"City of Boston","license_id":"odc-pddl","license_name":"Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0","license_url":"https://opendatacommons.org/licenses/pddl/1-0/","openness":"public_domain","retrieved_at":"2026-09-02T22:53:39.750164Z","rights_statement":"Open Data Commons Public Domain Dedication and License (PDDL)","source_id":"city-of-boston-open-data","source_identifier":"boston-street-segments-sam-system","source_name":"City of Boston Open Data Portal (Analyze Boston)","source_url":"https://data.boston.gov/dataset/boston-street-segments-sam-system","transforms":[{"description":"retrieved the dataset's metadata record from the CKAN package_show endpoint","input_sha256":null,"operation":"fetch","output_sha256":null,"parameters":{},"performed_at":"2026-09-02T22:55:19.999501Z","seq":1,"tool":"archive-ingest 0.1.0"},{"description":"mapped the portal's catalogue fields onto the archive's Dataset record; the publisher's own wording and column dictionary are preserved verbatim","input_sha256":null,"operation":"normalize","output_sha256":null,"parameters":{},"performed_at":"2026-09-02T22:55:20.047389Z","seq":2,"tool":"archive-ingest 0.1.0"}]},"publisher_org_id":null,"publisher_text":"Boston Maps","record_kind":"dataset","row_count":null,"slug":"boston-street-segments-sam-system","source_modified_at":"2026-09-02T03:01:30.913857Z","spatial_coverage":"Boston, Massachusetts","spatial_geojson":null,"status":"published","summary":"City of Boston street segments data from the Street Address Management (SAM) system. Updated nightly.","temporal_end":null,"temporal_start":null,"title":"Boston Street Segments (SAM System)","update_frequency":null,"updated_at":"2026-09-02T22:55:19.830504Z","urn":"urn:lemay:boston:dataset:boston-street-segments-sam-system","version":1,"withdrawn_reason":null},"urn":"urn:lemay:boston:dataset:boston-street-segments-sam-system","version_history":[{"change_note":"accessioned from the City of Boston open-data portal","changed_by":"archive-ingest 0.1.0","recorded_at":"2026-09-02T22:55:20.086658Z","version":1}]}