Evidence map›Paper›PMID 15653699›Full record

SynthesisBMJ (Clinical research ed.)2005

Effectiveness of speed cameras in preventing road traffic collisions and related casualties: systematic review.

Paul Pilkington, Sanjay Kinra

Abstract readSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in BMJ (Clinical research ed.), 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Speed cameras for the prevention of road traffic injuries and deaths.The Cochrane database of systematic reviews · 2010
    Pooled it
  2. Article
  3. Article
  4. Pilot study to evaluate school safety zone built environment interventions.Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention · 2022
    Article
  5. Article
  6. Review
  7. Impact of automated photo enforcement of vehicle speed in school zones: interrupted time series analysis.Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention · 2019
    Article
  8. Article
  9. Speed Management Strategies; A Systematic Review.Bulletin of emergency and trauma · 2016
    Review
  10. Article
  11. Article
  12. Motor vehicle injuries in Qatar: time trends in a rapidly developing Middle Eastern nation.Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention · 2012
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Raised speed limits, case fatality and road deaths: a six year follow-up using ARIMA models.Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention · 2007
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Paul PilkingtonUniversity of the West of England, Faculty of Health and Social Care, Bristol BS16 1DD. paul.pilkington@uwe.ac.uk
Sanjay Kinra

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo assess whether speed cameras reduce road traffic collisions and related casualties.

designSystematic review. DATA SOURCES: Cochrane Injuries Group Specialised Register, Cochrane Central Register of Controlled Trials, Medline, Embase, Social Science Citation Index, TRANSPORT database, ZETOC, the internet (including websites of road safety and motoring organisations), and contact with key individuals and organisations.

main outcome measuresRoad traffic collisions, injuries, and deaths. INCLUSION CRITERIA: Controlled trials and observational studies assessing the impact of fixed or mobile speed cameras on any of the selected outcomes.

results14 observational studies met the inclusion criteria; no randomised controlled trials were found. Most studies were before-after studies without controls (n = 8). All but one of the studies showed effectiveness of cameras up to three years or less after their introduction; one study showed sustained longer term effects (4.6 years after introduction). Reductions in outcomes across studies ranged from 5% to 69% for collisions, 12% to 65% for injuries, and 17% to 71% for deaths in the immediate vicinity of camera sites. The reductions over wider geographical areas were of a similar order of magnitude.

conclusionsExisting research consistently shows that speed cameras are an effective intervention in reducing road traffic collisions and related casualties. The level of evidence is relatively poor, however, as most studies did not have satisfactory comparison groups or adequate control for potential confounders. Controlled introduction of speed cameras with careful data collection may offer improved evidence of their effectiveness in the future.

Indexed as

PhotographyAccident PreventionAccidents, TrafficHumansPrognosisResearch DesignWounds and Injuries

Identifiers

PMID15653699
PMCPMC548724

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.