Note that neither this Campaign, nor the ABD, oppose 20 Mph zones where they are
applied to appropriate residential locations and where compliance is likely to be
high. What we do oppose is their enforcement by average speed cameras, or by speed
humps. There is little evidence that such measures improve road safety on top of
the use of simple signs and minor traffic engineering works. Indeed, the use of average
speed cameras is likely to be used as a simple revenue raising measure, supported
by those who have a fixation on traffic speed rather than a real focus on road safety
- see the page of this site entitled “Cost Effectiveness” for more information on
that. It is very regrettable that in recent years the focus of road safety campaigns
has often been on traffic speed, which has distorted the priorities, diverted funds
and undermined sensible road safety measures.
The Alliance of British Drivers (ABD) has published several articles on the subject
of 20 Mph zones. See these documents for more information on the benefits of such
zones and how they should be used (these are PDF documents which require the free
Adobe Acrobat reader to display):
A submission to the London Assembly Inquiry into 20 Mph zones: Response to GLA
An analysis of the wide-area Portsmouth 20 Mph zone: Portsmouth
There are also several articles in the past newsletters of the London Region of the
ABD available from this web page: Newsletters (see issues 14, 12 and 6).
The above links take you to the ABD London Region web site - use the browser back
button to return to this campaign web site.