Dataset
Boston Street Segments (SAM System)
City of Boston street segments data from the Street Address Management (SAM) system. Updated nightly.
Dataset
- Publisher
- Boston Maps
- Spatial coverage
- Boston, Massachusetts
- Fields
- 38
- Keywords
- boston, boston segments, boston street segments, boston streets, bparc, centerlines, ckan, daily, road data, roads, segments, street centerlines, street data, street segments, streets
- Publisher's page
- https://data.boston.gov/dataset/boston-street-segments-sam-system
Artifacts
“Preserved” means the archive holds the bytes and their digest. “Referenced” means it holds the record of them and nothing more. The archive does not claim a holding it cannot prove.
| Format | Preservation | Size | Digest | Source |
|---|---|---|---|---|
| ArcGIS GeoServices REST API | referenced | — | — | source |
| CSV | referenced | 7307207 | c3e44b631158bb26962558b2e08b7376d687c579c86e768eba7520cdbf92403e | source |
| GeoJSON | referenced | 22441292 | 834e4752f0a71f8217d0f994f7fa645357f34c55da9c20cceda0a69f7428b014 | source |
| HTML | referenced | — | — | source |
| KML | referenced | 3095732 | b22bfd6d74bdf94c185c3edecc180b746910f2c032915a872b1ff2ca3186c914 | source |
| SHP | referenced | — | — | source |
Column dictionary
The publisher's own dictionary, preserved verbatim. The archive does not reword a schema into its own vocabulary — how the publisher named a column is evidence about the publisher.
| Column | Type | Description |
|---|---|---|
SEGMENT_ID | numeric | |
L_F_ADD | numeric | |
L_T_ADD | numeric | |
R_F_ADD | numeric | |
R_T_ADD | numeric | |
STREET_ID | numeric | |
PRE_DIR | text | |
ST_NAME | text | |
ST_TYPE | text | |
SUF_DIR | text | |
ALTERNATE_NAME | text | |
CFCC | text | |
SPEEDLIMIT | numeric | |
ONEWAY | text | |
F_ZLEV | text | |
T_ZLEV | text | |
FT_COST | numeric | |
TF_COST | numeric | |
FT_DIR | text | |
TF_DIR | text | |
SHIELD | text | |
HWY_NUM | text | |
MUN_L | text | |
MUN_R | text | |
NBHD_L | text | |
NBHD_R | text | |
STATE00_L | text | |
STATE00_R | text | |
COUNTY00_L | numeric | |
COUNTY00_R | numeric | |
MCD00_L | numeric | |
MCD00_R | numeric | |
ZIP_L | text | |
ZIP_R | text | |
ownership | text | |
ROUTE_ID | text | |
Shape_Length | numeric | |
shape_wkt | text |
Identity
- Identifier
- urn:lemay:boston:dataset:boston-street-segments-sam-system
- Canonical URL
- https://boston.fyi/dataset/boston-street-segments-sam-system
- As JSON
- https://boston.fyi/dataset/boston-street-segments-sam-system.json
- Version
- 1 · last changed 2 September 2026
Provenance
- Source
- City of Boston Open Data Portal (Analyze Boston) — source of record
- Licence
- Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0 (public_domain)
- Retrieved
- 2 September 2026
- Source identifier
- boston-street-segments-sam-system
- Attribution
- City of Boston
- Rights as stated
- Open Data Commons Public Domain Dedication and License (PDDL)
Transform ladder
| # | Operation | Description | Tool |
|---|---|---|---|
| 1 | fetch | retrieved the dataset's metadata record from the CKAN package_show endpoint | archive-ingest 0.1.0 |
| 2 | normalize | mapped the portal's catalogue fields onto the archive's Dataset record; the publisher's own wording and column dictionary are preserved verbatim | archive-ingest 0.1.0 |