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Table 3 Description of included systematic reviews: Enforcement

From: Effects of interventions for preventing road traffic crashes: an overview of systematic reviews

Review first author, date of publication

Date of search to identify studies for this review

Interventions

Participants

Number of included studies (type of study design)

Geographic area

Outcomes

Aeron-Thomas 2005 [23]

June-02

Cameras used at intersections to detect red‐light violators

All road users,

Intersections and areas assigned red-light cameras.

10 (controlled before and after)

HIC

(USA, Australia, Singapore)

Road traffic casualties and crashes

Red-light violations

Blais 2005 [24]

Not stated

Tough police interventions (random breath testing, sobriety checkpoints, random road watch, photo-radar)

Drivers of all motorised vehicles

10 (before and after studies)

High-income countries

Decrease in accidents

Bunn 2003 [12]

Jan-08

Vertical and horizontal shifts in traffic (e.g. road humps, speed cushions, raised crosswalks. Reduced speed limit zones.

Areas covering a number of different streets, including residential and main roads, treated with traffic calming measures

22 (controlled before-and-after studies)

HIC (Germany, UK, Australia, Netherlands, Denmark, Japan, and Spain)

Road traffic crashes.

Pedestrian-motor vehicle collisions

Goss 2008 [28]

Not stated

Police patrols that target alcohol-impaired driving

All drivers using public roads

32 (RCTs, controlled before and after, controlled interrupted time-series)

High-income countries

Alcohol-impaired driving

Elder 2002 [25]

Not stated

Sobriety checkpoints

Drinking drivers

17 (interrupted time-series, before and after)

High-income countries

Reducing alcohol-involved crashes

Erke 2009 [26]

Not stated

Red light cameras

Drivers of all motorised vehicles

21 (before and after, time series)

High-income countries

Reduction of crashes

Erke 2009 [27]

Not stated

Drink driving check-points

Drivers of all motorised vehicles

40 (before and after, interrupted time series)

HIC (Australia, UK, USA, Canada, New Zealand)

Reduction of crashes involving alcohol

Hoye 2014 [29]

Not stated

Speed cameras and section control (point-to-point speed cameras)

Drivers of all motorised vehicles

9 (before and after studies)

HIC (Australia, Belgium, Norway, Sweden, Italy, USA, Scotland)

Total crash numbers

Pilkington 2005 [31]

Feb-04

Speed cameras

Drivers of all motorised vehicles

14 (Controlled before and after, before and after without control, time-series analysis)

HIC (UK, Canada, Australia, New Zealand, Norway)

Road traffic collisions,

Injuries, and deaths.

Peek-asa 1999 [30]

1997

Random Alcohol Screening in Reducing Motor Vehicle Crash Injuries

Drivers of all motorised vehicles

14 (Ecological studies, interrupted time-series, quasi-experimental time-series)

HIC (USA, Australia)

Random screening significantly reduced crashes and injuries

Wilson 2010 [32]

Mar-10

All automated and semi‐automated methods and systems available for speed enforcement (speed cameras (photo radar) laser and other radar devices as well as ancillary equipment such as road embedded electromagnetic loops.)

Drivers of all motorised vehicles

35

(controlled before‐after trials, interrupted time series studies)

HIC (Australia, Canada, Germany, Denmark, Spain, Finland, England, UK, London, Hong Kong, Netherlands, Norway, New Zealand, USA)

Percentage of speeding drivers above the speed limit

The absolute pre/post change in speed or the percentage pre/post change in speed in areas with and without cameras.

Duration of speed reduction (i.e. time and distance halos):

Crash and injury outcomes