Road Risk

Reference register

11 verified recordsDirect sources

Sources tied to specific claims

Each record names the source, version or year, direct link, access date, the Road Risk claim it supports and any attribution boundary. Missing citation details are omitted rather than guessed.

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How sources are used

Reference does not mean endorsement

Method context

Official safety methods show why collision, exposure, infrastructure and uncertainty evidence must be kept separate.

Data provenance

OSM and RSA records identify where mapped geometry and observed historical context came from.

Technical implementation

Mapping and routing documentation supports software behaviour, not scientific validity.

Bibliography

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11 of 11 references shown

  1. Official infrastructure-safety guidance

    Road Infrastructure Safety Management

    Transport Infrastructure Ireland · Current web guidance · Transport Infrastructure Ireland

    Open source
    Supports
    Irish infrastructure-safety context; Need for collision, exposure and inspection evidence; Network-wide assessment boundary
    Accessed
    2026-08-31

  2. EU legislation

    Directive 2008/96/EC on road infrastructure safety management (consolidated 16 December 2019)

    European Parliament and Council of the European Union · 2008; consolidated 2019 · EUR-Lex

    Open source
    Supports
    Road-safety impact assessment; Audit and inspection context; Network-wide assessment context
    Accessed
    2026-08-31
    Attribution or licence
    Official Journal and EUR-Lex source acknowledged.

  3. Official method overview

    Highway Safety Manual

    Federal Highway Administration; manual published by AASHTO · 2010 manual; current FHWA resource · Federal Highway Administration

    Open source
    Supports
    Quantitative safety-analysis context; Safety performance functions; Need to distinguish comparative heuristics from calibrated methods
    Accessed
    2026-08-31
    Attribution or licence
    The Highway Safety Manual is an AASHTO publication; this link is FHWA implementation guidance.

  4. Official case study

    Development of Safety Performance Functions for Network Screening in Illinois

    Federal Highway Administration · 2014 · Federal Highway Administration

    Open source
    Supports
    Exposure-aware statistical modelling; Local calibration; Regression-to-the-mean boundary
    Accessed
    2026-08-31

  5. Official observed-collision dataset and guidance

    Map of road collisions in Ireland

    Road Safety Authority · 2016–2024 injury-collision records; later years provisional as stated by RSA · Road Safety Authority

    Open source
    Supports
    Historical observed-collision context; Severity and date fields; Provisional-data warning
    Accessed
    2026-08-31
    Attribution or licence
    RSA source acknowledgement and data-current date required for RSA-derived Road Risk output.

  6. Official engineering guidance

    Speed Concepts: Informational Guide — Chapter 4, Engineering and Technical Concepts

    Federal Highway Administration · Current web edition · Federal Highway Administration

    Open source
    Supports
    Centripetal acceleration context; Horizontal-curve radius, speed, friction and superelevation relationship; Boundary between simplified physics and geometric design practice
    Accessed
    2026-09-01

  7. Official statistical reference

    NIST/SEMATECH e-Handbook of Statistical Methods

    National Institute of Standards and Technology · Current online handbook · National Institute of Standards and Technology

    Open source
    Supports
    Distribution summaries; Histograms and exploratory analysis; Location, spread, skewness and statistical interpretation
    Accessed
    2026-09-01
    Attribution or licence
    United States National Institute of Standards and Technology source acknowledged.

  8. Peer-reviewed geodesy reference

    Algorithms for geodesics

    Charles F. F. Karney · 2013 · Journal of Geodesy

    Open source
    Supports
    Geodesic calculation context; Coordinate and distance accuracy boundary; Distinction between spherical approximations and ellipsoidal geodesics
    Accessed
    2026-09-01

  9. Technical documentation

    Leaflet API reference

    Leaflet project contributors · 1.9.4 reference · Leaflet

    Open source
    Supports
    Interactive map rendering; Vector and GeoJSON layers; Map controls
    Accessed
    2026-08-31
    Attribution or licence
    Leaflet is distributed under the BSD-2-Clause licence.

  10. Technical service documentation

    openrouteservice API documentation

    HeiGIT gGmbH · Core 9.9.0 at access date · HeiGIT gGmbH

    Open source
    Supports
    Optional route generation; Isochrone generation; Provider boundary
    Accessed
    2026-08-31
    Attribution or licence
    Provider terms and attribution apply when the service is configured and used.