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Published in: BMC Public Health 1/2015

Open Access 01-12-2015 | Research article

Installation of speed humps and pedestrian-motor vehicle collisions in Toronto, Canada: a quasi-experimental study

Authors: Linda Rothman, Alison Macpherson, Ron Buliung, Colin Macarthur, Teresa To, Kristian Larsen, Andrew Howard

Published in: BMC Public Health | Issue 1/2015

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Abstract

Background

Evidence related to the effectiveness of speed humps on reducing pedestrian-motor vehicle collisions (PMVC) has been conflicting. The purpose of this study was to determine the association between speed hump installation and changes in PMVC rates in Toronto, Canada.

Methods

Speed humps were mapped along with police-reported pedestrian collisions from 2000–2011 and built environment roadway characteristics. A quasi-experimental study identified collision counts before and after speed hump installation, modeled using repeated measures Poisson regression adjusted for season and roadway characteristics. Stratified analyses were conducted by age group and injury severity.

Results

There were 27,827 PMVC, with 1344 collisions along 409 roadways with speed humps. PMVC incidence rates/meters of road/month decreased after installation of speed humps (IRR 0.78 95 % CI 0.66, 0.91). Winter, collector roads (versus local), pre-amalgamated city centre and increased land use mix were associated with more collisions. The association between speed humps and PMVC rates decreased more for children (IRR 0.57, 95 % CI 0.41, 0.79) than for adults (IRR 0.80, 95 % CI 0.68, 0.95).

Conclusions

Speed humps are an easily replicated method of traffic calming which have a significant protective effect on PMVC on the roadways where they are installed, particularly for children. There is a need for an area-wide analysis to determine the effects of the installation of speed humps to ensure that PMVC are not being displaced to surrounding roadways.
Literature
1.
go back to reference World Health Organization. Global status report on road safety 2013: supporting a decade of action. Geneva: World Health Organization; 2013. p. 1–318. World Health Organization. Global status report on road safety 2013: supporting a decade of action. Geneva: World Health Organization; 2013. p. 1–318.
2.
go back to reference Lozano R, Naghavi M, Foreman K, Lim S, Shibuya K, Aboyans V, et al. Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010: a systematic analysis for the Global Burden of Disease Study 2010. The Lancet. 2013;380:2095–128.CrossRef Lozano R, Naghavi M, Foreman K, Lim S, Shibuya K, Aboyans V, et al. Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010: a systematic analysis for the Global Burden of Disease Study 2010. The Lancet. 2013;380:2095–128.CrossRef
4.
go back to reference World Health Organization. World Health Statistics. Geneva: World Health Organization; 2008. World Health Organization. World Health Statistics. Geneva: World Health Organization; 2008.
5.
go back to reference Mathers C, Loncar D. Updated projections of global mortality and burden of disease, 2002-2030: data sources, methods and results. In: Evidence and Information for Policy Working Paper. Geneva: World Health Organization; 2005. Mathers C, Loncar D. Updated projections of global mortality and burden of disease, 2002-2030: data sources, methods and results. In: Evidence and Information for Policy Working Paper. Geneva: World Health Organization; 2005.
6.
go back to reference World Health Organization. World report on road traffic injury prevention. (Peden M, Scurfield R, Sleet D, Mohan D, Hyder AA, Jarawan E, Mathers C eds.). Geneva: World Health Organization; 2004. p. 1–244. World Health Organization. World report on road traffic injury prevention. (Peden M, Scurfield R, Sleet D, Mohan D, Hyder AA, Jarawan E, Mathers C eds.). Geneva: World Health Organization; 2004. p. 1–244.
7.
go back to reference Organisation for Economic Co-operation and Development (OECD). Speed managemen. France: OECD; 2006. Organisation for Economic Co-operation and Development (OECD). Speed managemen. France: OECD; 2006.
8.
go back to reference Pasanen E. Driving speeds and pedestrian safety. Finland: Helsinki; 1990. Pasanen E. Driving speeds and pedestrian safety. Finland: Helsinki; 1990.
9.
go back to reference Insurance Institute for Highway Safety (IIHS). IIHS: Facts: 55 speed limit. Arlington: 1987 Insurance Institute for Highway Safety (IIHS). IIHS: Facts: 55 speed limit. Arlington: 1987
10.
go back to reference Bunn F, Collier T, Frost C, Ker K, Roberts I, Wentz R. Area-wide traffic calming for preventing traffic related injuries. Cochrane Database of Syst Rev. 2009;1. Bunn F, Collier T, Frost C, Ker K, Roberts I, Wentz R. Area-wide traffic calming for preventing traffic related injuries. Cochrane Database of Syst Rev. 2009;1.
11.
go back to reference Smith DJ, Appleyard D. Improving the Residential Street Environment—Final Report. Washington: US Dept of Transportation Smith DJ, Appleyard D. Improving the Residential Street Environment—Final Report. Washington: US Dept of Transportation
12.
go back to reference Transportation Association of Canada, Canadian Institute of Transportation Engineers. Canadian guide to neighbourhood traffic calming. Transportation Association of Canada; 1998 Transportation Association of Canada, Canadian Institute of Transportation Engineers. Canadian guide to neighbourhood traffic calming. Transportation Association of Canada; 1998
13.
go back to reference Ewing R. Impacts of traffic calming. Transportation Quarterly. 2001;55:33–46. Ewing R. Impacts of traffic calming. Transportation Quarterly. 2001;55:33–46.
14.
go back to reference Jones SJ, Lyons RA, John A, Palmer SR. Traffic calming policy can reduce inequalities in child pedestrian injuries: database study. Inj Prev. 2005;11:152–6.CrossRefPubMedPubMedCentral Jones SJ, Lyons RA, John A, Palmer SR. Traffic calming policy can reduce inequalities in child pedestrian injuries: database study. Inj Prev. 2005;11:152–6.CrossRefPubMedPubMedCentral
15.
go back to reference Tester JM, Rutherford GW, Wald Z, Rutherford MW. A matched case-control study evaluating the effectiveness of speed humps in reducing child pedestrian injuries. Am J Public Health. 2004;94:646–50.CrossRefPubMedPubMedCentral Tester JM, Rutherford GW, Wald Z, Rutherford MW. A matched case-control study evaluating the effectiveness of speed humps in reducing child pedestrian injuries. Am J Public Health. 2004;94:646–50.CrossRefPubMedPubMedCentral
16.
go back to reference Zein SR, Geddes E, Hemsing S, Johnson M. Safety benefits of traffic calming. Transportation Research Record: Journal of the Transportation Research Board. 1997;1578:3–10.CrossRef Zein SR, Geddes E, Hemsing S, Johnson M. Safety benefits of traffic calming. Transportation Research Record: Journal of the Transportation Research Board. 1997;1578:3–10.CrossRef
17.
go back to reference Retting RA, Ferguson SA, McCartt AT. A review of evidence-based traffic engineering measures designed to reduce pedestrian–motor vehicle crashes. Am J Public Health. 2003;93. Retting RA, Ferguson SA, McCartt AT. A review of evidence-based traffic engineering measures designed to reduce pedestrian–motor vehicle crashes. Am J Public Health. 2003;93.
18.
go back to reference Rothman L, Macarthur C, To T, Buliung R, Howard A. Motor vehicle-pedestrian collisions and walking to school: the role of the built environment. Pediatrics. 2014. doi:10.1542/peds.2014-2317. Rothman L, Macarthur C, To T, Buliung R, Howard A. Motor vehicle-pedestrian collisions and walking to school: the role of the built environment. Pediatrics. 2014. doi:10.​1542/​peds.​2014-2317.
19.
go back to reference Dumbaugh E, Frank L. Traffic safety and safe routes to schools: synthesizing the empirical evidence. Transportation Research Record: Journal of the Transportation Research Board. 2009;2007:89–97. Dumbaugh E, Frank L. Traffic safety and safe routes to schools: synthesizing the empirical evidence. Transportation Research Record: Journal of the Transportation Research Board. 2009;2007:89–97.
20.
go back to reference City of Toronto: Building the New City of Toronto. Final Three Year Status Report on Amalgamation, January 1998-December 2000. vol. 2013. Toronto: 2001 City of Toronto: Building the New City of Toronto. Final Three Year Status Report on Amalgamation, January 1998-December 2000. vol. 2013. Toronto: 2001
21.
go back to reference Frank LD, Andresen MA, Schmid TL. Obesity relationships with community design, physical activity, and time spent in cars. Am J Prev Med. 2004;27:87–96.CrossRefPubMed Frank LD, Andresen MA, Schmid TL. Obesity relationships with community design, physical activity, and time spent in cars. Am J Prev Med. 2004;27:87–96.CrossRefPubMed
24.
go back to reference Zaidel D, Hakkert A, Pistiner A. The use of road humps for moderating speeds on urban streets. Accident Analysis & Prevention. 1992;24:45–56.CrossRef Zaidel D, Hakkert A, Pistiner A. The use of road humps for moderating speeds on urban streets. Accident Analysis & Prevention. 1992;24:45–56.CrossRef
26.
go back to reference Graham DJ, Glaister S. Spatial variation in road pedestrian casualties: the role of urban scale, density and land-use mix. Urban Studies. 2003;40:1591–607.CrossRef Graham DJ, Glaister S. Spatial variation in road pedestrian casualties: the role of urban scale, density and land-use mix. Urban Studies. 2003;40:1591–607.CrossRef
27.
go back to reference Jones AP, Haynes R, Kennedy V, Harvey I, Jewell T, Lea D. Geographical variations in mortality and morbidity from road traffic accidents in England and Wales. Health & Place. 2008;14:519–35.CrossRef Jones AP, Haynes R, Kennedy V, Harvey I, Jewell T, Lea D. Geographical variations in mortality and morbidity from road traffic accidents in England and Wales. Health & Place. 2008;14:519–35.CrossRef
28.
go back to reference Gill M, Goldacre M. Seasonal variation in hospital admission for road traffic injuries in England: analysis of hospital statistics. Injury Prevention. 2009;15:374–8.CrossRefPubMed Gill M, Goldacre M. Seasonal variation in hospital admission for road traffic injuries in England: analysis of hospital statistics. Injury Prevention. 2009;15:374–8.CrossRefPubMed
29.
go back to reference Wier M, Weintraub J, Humphreys EH, Seto E, Bhatia R. An area-level model of vehicle-pedestrian injury collisions with implications for land use and transportation planning. Accident Analysis & Prevention. 2009;41:137–45.CrossRef Wier M, Weintraub J, Humphreys EH, Seto E, Bhatia R. An area-level model of vehicle-pedestrian injury collisions with implications for land use and transportation planning. Accident Analysis & Prevention. 2009;41:137–45.CrossRef
30.
go back to reference Kuhlmann AKS, Brett J, Thomas D, Sain SR. Environmental characteristics associated with pedestrian–motor vehicle collisions in Denver, Colorado. American Journal of Public Health. 2009;99:1632.CrossRef Kuhlmann AKS, Brett J, Thomas D, Sain SR. Environmental characteristics associated with pedestrian–motor vehicle collisions in Denver, Colorado. American Journal of Public Health. 2009;99:1632.CrossRef
31.
go back to reference Rothman L, Buliung R, Macarthur C, To T, Howard A. Walking and child pedestrian injury: a systematic review of built environment correlates of safe walking. Injury Prevention. 2013;20:41–9.CrossRefPubMed Rothman L, Buliung R, Macarthur C, To T, Howard A. Walking and child pedestrian injury: a systematic review of built environment correlates of safe walking. Injury Prevention. 2013;20:41–9.CrossRefPubMed
32.
go back to reference Clifton KJ, Kreamer-Fults K. An examination of the environmental attributes associated with pedestrian-vehicular crashes near public schools. Accid Anal Prev. 2007;39:708–15.CrossRefPubMed Clifton KJ, Kreamer-Fults K. An examination of the environmental attributes associated with pedestrian-vehicular crashes near public schools. Accid Anal Prev. 2007;39:708–15.CrossRefPubMed
33.
go back to reference Cloutier MS, Apparicio P. Does the neighbouring environment around schools influence child pedestrian accidents risk in Montreal? The contribution of geographically weighted Poisson regression. Revue de géographie et d’aménagement. 2008;1:25–38. Cloutier MS, Apparicio P. Does the neighbouring environment around schools influence child pedestrian accidents risk in Montreal? The contribution of geographically weighted Poisson regression. Revue de géographie et d’aménagement. 2008;1:25–38.
34.
go back to reference Mitra R, Buliung R. Built environment correlates of active school transportation: neighborhood and the modifiable areal unit problem. J Transp Geogr. 2012;20:51–61.CrossRef Mitra R, Buliung R. Built environment correlates of active school transportation: neighborhood and the modifiable areal unit problem. J Transp Geogr. 2012;20:51–61.CrossRef
35.
go back to reference Barnett AG, van der Pols JC, Dobson AJ. Regression to the mean: what it is and how to deal with it. International Journal of Epidemiology. 2005;34:215–20.CrossRefPubMed Barnett AG, van der Pols JC, Dobson AJ. Regression to the mean: what it is and how to deal with it. International Journal of Epidemiology. 2005;34:215–20.CrossRefPubMed
36.
go back to reference Maas MW, Harris S. Police recording of road accident in-patients: investigation into the completeness, representativity and reliability of police records of hospitalized traffic victims. Accident Analysis & Prevention. 1984;16:167–84.CrossRef Maas MW, Harris S. Police recording of road accident in-patients: investigation into the completeness, representativity and reliability of police records of hospitalized traffic victims. Accident Analysis & Prevention. 1984;16:167–84.CrossRef
37.
go back to reference Barancik JI, Fife D. Discrepancies in vehicular crash injury reporting: Northeastern Ohio trauma study IV. Accident Analysis & Prevention. 1985;17:147–54.CrossRef Barancik JI, Fife D. Discrepancies in vehicular crash injury reporting: Northeastern Ohio trauma study IV. Accident Analysis & Prevention. 1985;17:147–54.CrossRef
38.
go back to reference Parkhill M, Sooklall R, Bahar G. Updated Guidelines for the Design and Application of Speed Humps. In: ITE 2007 Annual Meeting and Exhibit. Pittsburgh: Institute of Transportation Engineers; 2007. Parkhill M, Sooklall R, Bahar G. Updated Guidelines for the Design and Application of Speed Humps. In: ITE 2007 Annual Meeting and Exhibit. Pittsburgh: Institute of Transportation Engineers; 2007.
39.
go back to reference Skene M. Traffic calming on arterial roadways? In: Transportation Frontiers for the Next Millennium: 69th Annual Meeting of the Institute of Transportation Engineers. 1999. Skene M. Traffic calming on arterial roadways? In: Transportation Frontiers for the Next Millennium: 69th Annual Meeting of the Institute of Transportation Engineers. 1999.
40.
go back to reference Macbeth AG. Calming arterials in Toronto. In: 68th Annual Meeting of the Institute of Transportation Engineers. 1998. Macbeth AG. Calming arterials in Toronto. In: 68th Annual Meeting of the Institute of Transportation Engineers. 1998.
41.
go back to reference Du J, Ivan J, Garder P, Aultman-Hall L. Public perceptions of traffic-calming device installation. In: Institute of Transportation Engineers 2003 Annual Meeting and Exhibit (held in conjunction with ITE District 6 Annual Meeting). 2003. Du J, Ivan J, Garder P, Aultman-Hall L. Public perceptions of traffic-calming device installation. In: Institute of Transportation Engineers 2003 Annual Meeting and Exhibit (held in conjunction with ITE District 6 Annual Meeting). 2003.
Metadata
Title
Installation of speed humps and pedestrian-motor vehicle collisions in Toronto, Canada: a quasi-experimental study
Authors
Linda Rothman
Alison Macpherson
Ron Buliung
Colin Macarthur
Teresa To
Kristian Larsen
Andrew Howard
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Public Health / Issue 1/2015
Electronic ISSN: 1471-2458
DOI
https://doi.org/10.1186/s12889-015-2116-4

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