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Street Pattern and Traffic Safety. Edition No. 1
VDM Publishing House, January 2012, Pages: 304
Over the last fifty years, the lollipop design has become the basic building block of many suburban road networks in most North American cities. Although developed to improve the social living environment, this combination of cul-de-sac and loop streets has the support of many traffic engineers because of its traffic calming effects. Perhaps due to its intuitive appeal, few studies have been conducted to examine the impact of this design on road crashes. While the social benefits and drawbacks of different types of street patterns and urban forms have been discussed extensively in the literature, little attention has been devoted so far to the traffic safety effects of the different street network designs. The main objective of this program of research is to explore the effect of neighbourhood street pattern on the frequency and severity of crashes. Using data from the City of Calgary, traffic safety performance functions using the count data models, ordered and unordered response models were estimated to provide policy makers with evidence based recommendations on the type of subdivision that would be safer for Calgary and other rapidly expanding cities.
Luke Miller is a finance professor at Fort Lewis College. After attending the University of Virginia, Dr. Miller completed his Masters and PhD in Financial Engineering from Auburn University. His consulting, teaching, and research interests span business valuation, financial planning, capital budgeting, and security analysis.