1. Source: http://www.popcenter.org/problems/speeding/3
2. Source : 24jan2017 http://www.gatineau.ca/portail/default.aspx?p=transport_voirie/mesures_moderation_circulation
3. Source: 24jan2017 http://ici.radio-canada.ca/nouvelle/776823/attenutation-vitesse-gatineau-quartiers-balises publié le 19avr2016
4. Source de l’image: 24jan2017 http://www.ansemble.eu/26-balise-signalisation
5. Source: 24jan2017 http://www.lapresse.ca/le-droit/actualites/ville-de-gatineau/201612/09/01-5049831-vingt-nouveaux-radars-pedagogiques-a-gatineau.php 9dec2016
8. Source : https://www.flickr.com/photos/49479577@N03/7999978701
9. Source : http://www.securite-routiere.org/infrastructure/chicanes/chicanes.htm
10. Source : 24jan2017 http://ici.radio-canada.ca/nouvelle/586482/vitesse-mesures-gatineau 7nov2012
11. Source : 24jan2017 http://www.hrg-inc.com/reduce-speeding-with-speed-humps-and-other-traffic-control-techniques/
12. Source : Idem
13. Source : http://www.dailymail.co.uk/news/article-1326361/Stop-cars-speeding-DIY-way-using-plant-pots-drawings-road.html
14. Source: 24jan2017 http://ici.radio-canada.ca/nouvelle/704413/ontario-consultations-limite-vitesse-quartiers-residentiels-zones-scolaires 29jan2015
Références graphiques/Graph reference: http://www.who.int/roadsafety/projects/manuals/speed_manual/en/