Simulating the air quality impacts of traffic calming schemes in a dense urban neighborhood

In this study, the effects of isolated traffic calming measures and area-wide calming schemes on air quality in a dense neighborhood were estimated using a combination of microscopic traffic simulation, emission, and dispersion modeling. Results indicated that traffic calming measures did not have as large an effect on nitrogen dioxide (NO2) concentrations as the effect observed on nitrogen oxide (NOx) emissions. Changes in emissions resulted in highly disproportional changes in pollutant levels due to daily meteorological conditions, road geometry and orientation with respect to the wind. Average NO2 levels increased between 0.1% and 10% with respect to the base-case while changes in NOx emissions varied between 5% and 160%. Moreover, higher wind speeds decreased NO2 concentrations on both sides of the roadway. Among the traffic calming measures, speed bumps produced the highest increases in NO2 levels.

[1]  R. Burnett,et al.  Lung cancer, cardiopulmonary mortality, and long-term exposure to fine particulate air pollution. , 2002, JAMA.

[2]  Xiaohong Xu,et al.  Intra-urban variability of air pollution in Windsor, Ontario--measurement and modeling for human exposure assessment. , 2008, Environmental research.

[3]  Dave K. Verma,et al.  Correlation of nitrogen dioxide with other traffic pollutants near a major expressway , 2008 .

[4]  Ole Hertel,et al.  The Operational Street Pollution Model (OSPM) , 1991 .

[5]  Andras Varhelyi,et al.  The effects of small roundabouts on emissions and fuel consumption: a case study , 2002 .

[6]  Geert Wets,et al.  Personal exposure to Black Carbon in transport microenvironments , 2012 .

[7]  Michel Pavageau,et al.  The performance evaluation of WinOSPM model for urban street canyons of Nantes in France , 2005, Environmental monitoring and assessment.

[8]  M J Maher,et al.  Are speed enforcement cameras more effective than other speed management measures? An evaluation of the relationship between speed and accident reductions. , 2005, Accident; analysis and prevention.

[9]  June M. Tester,et al.  A matched case-control study evaluating the effectiveness of speed humps in reducing child pedestrian injuries. , 2004, American journal of public health.

[10]  Bethan Owen,et al.  Air quality impacts of speed-restriction zones for road traffic. , 2005, The Science of the total environment.

[11]  Panos G Michalopoulos,et al.  Practical Procedure for Calibrating Microscopic Traffic Simulation Models , 2003 .

[12]  Raghavan Srinivasan,et al.  Safety countermeasures and crash reduction in New York City--Experience and lessons learned. , 2013, Accident; analysis and prevention.

[13]  Ruwim Berkowicz,et al.  OSPM - A Parameterised Street Pollution Model , 2000 .

[14]  S. Weichenthal,et al.  Traffic-Related Air Pollution and Acute Changes in Heart Rate Variability and Respiratory Function in Urban Cyclists , 2011, Environmental health perspectives.

[15]  B. Persaud,et al.  Crash and injury reduction following installation of roundabouts in the United States. , 2001, American journal of public health.

[16]  Ole Hertel,et al.  Using measurements of air pollution in streets for evaluation of urban air quality — meterological analysis and model calculations , 1996 .

[17]  Anna Ripoll,et al.  A travel mode comparison of commuters' exposures to air pollutants in Barcelona , 2012 .

[18]  Hesham Rakha,et al.  A field evaluation case study of the environmental and energy impacts of traffic calming , 2009 .

[19]  M J Nieuwenhuijsen,et al.  Determinants of personal exposure to PM2.5, ultrafine particle counts, and CO in a transport microenvironment. , 2009, Environmental science & technology.

[20]  Matthias Ketzel,et al.  Traffic pollution modelling and emission data , 2006, Environ. Model. Softw..

[21]  G. M. Raducan.  POLLUTANT DISPERSION MODELLING WITH OSPM IN A STREET CANYON FROM BUCHAREST , 2008 .

[22]  Marianne Hatzopoulou,et al.  Simulating the environmental effects of isolated and area-wide traffic calming schemes using traffic simulation and microscopic emission modeling , 2013 .

[23]  Paul Wilkinson,et al.  Effect of 20 mph traffic speed zones on road injuries in London, 1986-2006: controlled interrupted time series analysis , 2009, BMJ : British Medical Journal.

[24]  Christian John,et al.  COMPARISON OF EMISSION FACTORS FOR ROAD TRAFFIC FROM A TUNNEL STUDY (GUBRIST TUNNEL, SWITZERLAND) AND FROM EMISSION MODELING , 1999 .

[25]  Kehinde O. K. Oduyemi,et al.  The impacts of road traffic management on urban air quality1 , 1998 .

[26]  Reginald R. Souleyrette,et al.  Safety Impacts of “Road Diets” in Iowa , 2006 .

[27]  R E Stait,et al.  TRAFFIC CALMING: ENVIRONMENTAL ASSESSMENT OF THE LEIGH PARK AREA SAFETY SCHEME IN HAVANT , 1999 .

[28]  M J Maher,et al.  Are speed enforcement cameras more effective than other speed management measures? The impact of speed management schemes on 30 mph roads. , 2005, Accident; analysis and prevention.

[29]  Zev Ross,et al.  Nitrogen dioxide prediction in Southern California using land use regression modeling: potential for environmental health analyses , 2006, Journal of Exposure Science and Environmental Epidemiology.

[30]  Ting Wang,et al.  Assessment of traffic-related air pollution in the urban streets before and during the 2008 Beijing Olympic Games traffic control period , 2009 .

[31]  Ari Karppinen,et al.  A measurement campaign in a street canyon in Helsinki and comparison of results with predictions of the OSPM model , 2001 .

[32]  Matthias Ketzel,et al.  Particle number, particle mass and NO x emission factors at a highway and an urban street in Copenhagen , 2009 .

[33]  Anna Grana,et al.  Exploring Effects of Area-Wide Traffic Calming Measures on Urban Road Sustainable Safety , 2010 .

[34]  Catharinus F. Jaarsma,et al.  Effects of scale and efficiency of rural traffic calming on safety, accessibility and wildlife , 2011 .