Signs (Cartegraph)

The Boston Archive

Dataset

Signs (Cartegraph)

The transportation department (BTD) and public works department (PWD) manage signs and other assets through Cartegraph, an asset management system. This dataset is a weekly export of the signs in Cartegraph, including images (attachments) of those signs.

Dataset

Publisher: Department of Innovation and Technology
Spatial coverage: all
Fields: 37
Keywords: images, public works, signs, street signs, streets, transportation
Publisher's page: https://data.boston.gov/dataset/signs-cartegraph

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
CSV	unavailable	94739857	`—`	source
PDF	preserved	405213	`68a2eaae3cf350f28e3d1e852fdbf0befe71105a8e83e80eed76513395d0f7bc`	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
`oid`	text
`cartegraph_id`	text
`locator_address_number_field`	text
`locator_street_field`	text
`locator_city_field`	text
`address_number_field`	text
`street_field`	text
`neighborhood_field`	text
`city_field`	text
`county_field`	text
`state_field`	text
`height_field_amount`	text
`height_field_unit`	text
`width_field_amount`	text
`width_field_unit`	text
`mutcd_code_field`	text
`directionof_sign_arrow_field`	text
`sign_direction_field`	text
`sign_orientation_field`	text
`cg_last_modified_field`	text
`entry_date_field`	text
`replaced_field`	text
`retired_field`	text
`signalized_intersections_id_field`	text
`support_field`	text
`asset_status_field`	text
`special_sign_description_field`	text
`notes_field`	text
`attachment_oid`	text
`attachment_uploaded_field`	text
`attachment_cg_last_modified_field`	text
`attachment_filename`	text
`attachment_public_url`	text
`attachment_from_cyclomedia`	text
`latitude`	text
`longitude`	text
`geom_point_4326`	text

The complete dictionary, exactly as the publisher words it, is served as its own holding at /asset/3ea9a4654210dc2fcb164d47b61c03a6/signs-cartegraph-columns.json — 2722 bytes, SHA-256 3ea9a4654210dc2f…, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0.

Questions this record answers

Each answer is composed only from fields this record carries, and names the attestation for what it says. A question the record cannot answer from its own attested content is not asked here. Where a boundary is described as official it was promulgated by an authority with the power to draw it and is not amended by anything on the vernacular layer; where it is described as vernacular it is held by attestation alone and amends no official boundary.

Who publishes Signs (Cartegraph), and under what license?

Department of Innovation and Technology publishes it. The archive accessioned it under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0 (public domain), and holds the publisher's own column dictionary verbatim rather than reworded into the archive's vocabulary — how a publisher names a column is evidence about the publisher.