Implement speed limits in particular areas (e.g. with high primate densities) to reduce vehicle collisions with primates

Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
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Effectiveness

not assessed
Certainty

not assessed
Harms

not assessed

Calculating overall effectiveness category

Background information and definitions

Speed limits in areas with high traffic and high primate densities may help to prevent vehicle collisions with primates and also reduce stress levels in primates. Furthermore, primates may be able to cross roads more easily in areas where speed limits are enforced compared to areas with no traffic regulations. However, a study investigating the barrier effect of roads on the bank vole Myodes glareolus, yellow-necked mouse Apodemus flavicollis and common shrew Sorex araneus found that traffic intensity did not affect crossing rates in any of these species (Rico et al. 2007).

Imposing fines for breaking the speed limit or for colliding with primates is discussed under ‘Impose fines for breaking the speed limit or colliding with primates’.

Rico A., Kindlmann P. & Sedlácek F. (2007) Barrier effects of roads on movements of small mammals. Folia Zoologica, 56, 1-12.

Key messages

We found no evidence for the effects of implementing speed limits in particular areas to reduce vehicle collisions with primates on primate populations.

'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.

About key messages

Key messages provide a descriptive index to studies we have found that test this intervention.

Studies are not directly comparable or of equal value. When making decisions based on this evidence, you should consider factors such as study size, study design, reported metrics and relevance of the study to your situation, rather than simply counting the number of studies that support a particular interpretation.

Please cite as:

Junker, J., Kühl, H.S., Orth, L., Smith, R.K., Petrovan, S.O. & Sutherland, W.J. (2020) Primate Conservation. Pages 431-482 in: W.J. Sutherland, L.V. Dicks, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2020. Open Book Publishers, Cambridge, UK.

Where has this evidence come from?

List of journals searched by synopsis

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This Action forms part of the Action Synopsis:

Primate Conservation

Related Actions

Actions	Effectiveness	Category
Implement speed limits in particular areas (e.g. with high primate densities) to reduce vehicle collisions with primates Action Link	No evidence found (no assessment)	Synopsis Link
Impose fines for breaking the speed limit or colliding with primates Action Link	No evidence found (no assessment)	Synopsis Link
Re-route vehicles around protected areas Action Link	No evidence found (no assessment)	Synopsis Link