deletions | additions       diff --git a/section_Introduction_As_high_income__.tex b/section_Introduction_As_high_income__.tex  index 4bd3035..ff4c18b 100644  --- a/section_Introduction_As_high_income__.tex  +++ b/section_Introduction_As_high_income__.tex 
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As high-income countries, Canada, and Sweden especially, are among some of the safest countries in the world for motorists, cyclists, and pedestrians. Despite this, annual traffic fatality rates in Canada are nearly twice as high as in Sweden, as measured per 100,000 inhabitants (6.8 in Canada compared with 3.0 in Sweden in 2010 \cite{WHO_2013}; 5.5 in Canada compared with 2.7 in Sweden in 2013 \cite{OECD_2015}), per 10,000 registered motor vehicles (0.85 in Canada compared with 0.45 in Sweden in 2013 \cite{OECD_2015}), and per billion veh-km travelled (5.6 in Canada compared with 3.4 in Sweden in 2013 \cite{OECD_2015}), and this despite a relatively comparable car occupancy and mode share \cite{OECD_2015}, comparable design of infrastructure elements, and similar climactic conditions. This paper aims to collect and compare individual measures of driver behaviour and driving culture symptomatic of road safety issues which might capture the existing disparity in road safety records, especially regarding driver education and traffic enforcement policy implementation. To achieve this, a number of sites with identical geometry and land use are chosen in Sweden and Canada and compared, after controlling for additional traffic parameters such as flow rate and conflicting flow ratios.  Roundabouts might arguably be one of the best types of road infrastructure for direct comparison of road user behaviour and driving culture between North America and Europe. Although a relatively new phenomenon in North America, roundabouts are one of the few types of road designs with near identical geometric and aesthetic features in both regions. This should come as no surprise as the North American roundabout design guides \cite{NHCRP_2010} are heavily influenced by European roundabout design. Incidentally, the Swedish roundabouts studied in this paper are relatively new compared to other areas of Europe and the comparable Québec roundabouts are at least ten years old. Fatality and accident rates in Quebec are consistent with the Canadian average \cite{TransportCanada_2015}.    Very little research exists comparing tangible and objectively measurable difference in driving behaviour and driving culture between countries, especially after tightly controlling for geometric and land use factors. In part this is due to the challenge of coordinating such a study, and also in part due to the lack of a robust framework and technology for collecting and processing large amounts of driver behaviour. The bulk of international road safety comparison research seems to be concentrated on historical accident data \cite{TRB_Morris_2011} or...