ghost bike
Let an agent explain what ghost bikes are and why they are placed, relay local rules on roadside memorials and the practice of installation and removal, present road safety context with attribution, and handle the topic with respect for the bereaved.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Practice What a ghost bike is.
Definition
Definition and origins.
Definition
Definition.
- What is a ghost bike, and where and when did the practice begin? definition
- Is the user bereaved and seeking support, which should be offered first? boundary
Installation
How they are placed.
Installation
Installation.
- Who installs ghost bikes, and how are they made and placed? provenance
- Which entry fits a specific city project? action
Rules Local rules.
Policy
Memorial policies.
Policy
Policy.
- What rules do local authorities apply to placement and removal of roadside memorials? provenance
- Which authority is responsible for the site? action
Disputes
Removal and disputes.
Disputes
Disputes.
- How are removal disputes handled, and what do advocacy groups recommend? provenance
- Is the presentation respectful and neutral? boundary
Safety Road safety context.
Data
Cyclist deaths.
Data
Data.
- What do road safety statistics say about cyclist deaths, with sources? measurement
- Which sources are cited? provenance
Advocacy
Advocacy.
Advocacy
Advocacy.
- How are ghost bikes used in road safety advocacy, with positions attributed? provenance
- Which entry fits cycling safety? action
Meaning Memory and culture.
Memorial
Memorial culture.
Memorial
Memorial.
- How do ghost bikes relate to other roadside memorial traditions? provenance
- Which entry fits roadside memorials? action
Support
Support for the bereaved.
Support
Support.
- What support exists for families of road victims? provenance
- Which entry fits bereavement support? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.BLT
- Other names and narrower kinds
- Bicianimita
What it is Filled
A bicycle painted white and placed at the site where a cyclist was killed or seriously injured, as a roadside memorial and a reminder to drivers; ghost bikes are installed by friends, family or advocacy groups, sometimes with plaques and flowers, and their placement and removal are handled differently by local authorities.
Why it exists Filled
Let an agent explain what ghost bikes are and why they are placed, relay local rules on roadside memorials and the practice of installation and removal, present road safety context with attribution, and handle the topic with respect for the bereaved.
Distinguishing features Filled
- White bicycle as memorial
- Placed at the crash site
- Grassroots installation
- Both memorial and safety message
What robots and AI may and may not do Filled
Must not
- Remove, move or damage a ghost bike without the authority's decision and notice to the family.
- Publish the victim's identity or crash details the family has not made public.
- Use a ghost bike in advertising or as a joke.
- Assign blame for the crash beyond what investigators or courts have found.
Only with a human decision
- Deciding whether a ghost bike stays or is removed.
- Contacting the victim's family.
May
- Describe a ghost bike and the memorial practice it belongs to.
- Record its location and the crash it commemorates when the family or organizers have made this public.
Moral aspects Filled
- A ghost bike marks a death or grave injury; handling it carelessly causes fresh grief.
- It is also a public statement about road safety, which some find uncomfortable.
Who is affected
- The family and friends of the cyclist
- Cyclists who see it as a warning
- Drivers involved
Owners Filled
Steward
The family or group that placed it; the highway authority manages the land it stands on.
Links to other meta-models Filled
parent
- Q1532787 - registry parent class
related
- roadside memorial - the category
- road traffic death - the event
- cycling advocacy group - often the installer
- local authority - rules on street furniture
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.ghost-bike
- Wikidata: Q937114 (https://www.wikidata.org/wiki/Q937114)
Direct properties required Filled
- Memorial mass: kg - Measured by weighing the bicycle and any included attachments, with the measurement scope recorded.
- Overall length: m - Measured between the foremost and rearmost points of the installed memorial.
- Overall height: m - Measured vertically from the supporting surface to the highest part of the memorial.
Recognition required Filled
- White-painted bicycle at a crash site
- Plaque naming the person and date
- Ordinary abandoned bicycles and other roadside memorials are distinct
- A bicycle painted entirely white, locked to a post or railing at the roadside, often with a plaque or flowers.
Capabilities and actions required Filled
- explain the practice and its origins
- relay local rules on roadside memorials
- relay road safety context with sources
- route bereaved people to support services
Hazards and failure modes required Filled
- Removal disputes with authorities
- Distress to families from mishandling
- Obstruction of footways in rare cases
Standards and interfaces required Filled
- Local rules on roadside memorials and street furniture
- Highway authority removal policies
- Road safety law as context
Context of use required Filled
- Memorialising a killed cyclist and prompting road safety.
- ghost bikes for killed cyclists
- memorials for injured cyclists
- temporary and permanent installations
- ghost bike projects in specific cities
- related memorials for pedestrians
Sources Filled
- Wikidata item Q937114: ghost bike - identity and sense of the item
- Wikipedia: Ghost bike - general description of the item
Open questions
- Should roadside memorials be a separate entry?
- How should local policies be linked?
- The registry entry has merged an alias for a Chilean variant; should it be split off?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q937114/spec.json