Permanent project revision

Roosevelt Boulevard Automated Speed Enforcement

Revision 2026-08-20-source-dates · effective 2026-08-02

Current revision. This is the snapshot used by the live entity page.

unreviewed

Created the first structured Evidence Passport with 1 claim and 4 source dossiers.

sha256:dc2a1f4619f06b2064b7b367c870ea7ae84e74754e9120b5d143046ccf534f6e

All revisions → Current entity page →

Change set

add /evidencePassport — Added claim-level evidence mapping and source dossiers.
add /revisionHistory — Established a permanent, hash-addressed baseline revision.

1: of 1 claims mapped
4: source dossiers
3: publication dates recorded
1: archives linked
0: exact locators
0: content captures hashed

Claims, one by one

The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.

Claim 1 clm-cd51d643d0489799 quantitative

fatal/serious-injury crashes down 21% and pedestrian-involved crashes down 50% on camera-covered sections versus comparable roads

Published field: impact · verbatim
Mapping: mapped · no interpretation or interpolation added by this passport
What the mapping says: The peer-reviewed 2024 evaluation in Transportation Research Record compared camera-covered sections with similar roads and estimated eight fewer traffic deaths in 2020-2021.
Caveat: No claim-specific caveat recorded

Sources carrying this claim

Guerra, Puchalsky, Kovalova et al. — Evaluating the Effectiveness of Speed Cameras on Philadelphia's Roosevelt Boulevard

Source dossiers and revision state

This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.

unreviewed Revision 2026-08-20-source-dates effective 2026-08-02 · created 2026-08-20

Awaiting operator and domain-expert review; publication of this revision implies neither.

sha256:dc2a1f4619f06b2064b7b367c870ea7ae84e74754e9120b5d143046ccf534f6e

Revision history → Permanent version link → Machine-readable record → Evidence Constitution →

1: of 1 claims mapped
4: source dossiers
3: publication dates recorded
1: archives linked
0: exact locators
0: content captures hashed

Governance facts carried by the record

Operator: Philadelphia Parking Authority, under Pennsylvania Act 86 of 2018
Actor types: city-government
Funding model: public
Funding description: Not recorded
Cost: Not recorded
Ownership: Not recorded
Decision rights: Not recorded
Exit conditions: Not recorded

4 source dossiers

City of Philadelphia — How the Roosevelt Blvd Speed Cameras Save Lives and Need to Be Renewed & Expanded phila.gov · background

Open original source ↗

Stable source ID: src-23b557cc82db86a3
Publisher: Name not classified · phila.gov
Type / language: web-page · language not classified
Published: 2023-11-21
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-08-02
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Program history, violation and crash figures, renewal advocacy
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Philadelphia Inquirer — Roosevelt Boulevard speed cameras have reduced... inquirer.com · background

Open original source ↗

Stable source ID: src-e338d40d0fdc6279
Publisher: Name not classified · inquirer.com
Type / language: web-page · language not classified
Published: 2022-05-10
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-08-02
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Crash and fatality reduction reporting
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Guerra, Puchalsky, Kovalova et al. — Evaluating the Effectiveness of Speed Cameras on Philadelphia's Roosevelt Boulevard journals.sagepub.com · 1 linked claim

Open original source ↗

Stable source ID: src-f44dccdd2204507b
Publisher: Name not classified · journals.sagepub.com
Type / language: web-page · language not classified
Published: 2024-02-27
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-08-02
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: Open archived copy ↗ · 2024-12-03
Content hash: No captured content hash
Locator: Open the recorded source note
Peer-reviewed evaluation, Transportation Research Record 2024, control-corridor comparison
Descriptive only — not page/paragraph exact
Claims linked: clm-cd51d643d0489799

CBS News Philadelphia — Speed enforcement cameras on Roosevelt Boulevard have reduced crashes, fatalities cbsnews.com · background

Open original source ↗

Stable source ID: src-c74aa51523ba0b12
Publisher: Name not classified · cbsnews.com
Type / language: web-page · language not classified
Published: Not recorded
Updated: 2022-08-16
Source last checked: No source-level check date
Record last verified: 2026-08-02
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
PA legislature making the pilot permanent, December 2023 expansion to five more corridors
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Known limits of this passport

Publisher names and source languages have not yet been classified; domains are recorded without guessing.
Existing source notes are descriptive locators, not page- or paragraph-exact citations.
A missing archive, publication date or content hash is shown as null rather than inferred.
The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.