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- trafficcalming.org
www.trafficcalming.org/
- Federal Highway Administration
safety.fhwa.dot.gov/fourthlevel/pro_res_speedmgnt_calm.htm
- Institute of Transportation Engineers (ITE)
www.ite.org/traffic/index.html
- Traffic Calming, State of the Practice by Reid Ewing
www.ite.org/traffic/tcstate.htm#tcsop
- Transportation Association of Canada
www.tac-atc.ca