Spatial Factors Impacting Non-motorized Exposures and Crash Risks


Book Description

This research investigates spatial factors, that impact non-motorized exposures and crashes, and examines the relationship between exposure at signalized intersections and crash frequencies involving pedestrians and bicycles at a census tract level. The four Michigan cities of Ann Arbor, East Lansing, Flint and Grand Rapids are examined. After completing an extensive literature review to provide a list of required data, 92 intersections are selected from the four cities to collect pedestrian and bicyclist counts. Five year crash records, special attractions, non-motorized facilities and transportation infrastructure data for the four cities are gathered for the four cities. This data are later mapped and processed by ArcGIS for further analyses. Buffer zones are produced at signalized intersections (quarter miles for pedestrians and half miles for bicycles) to create log-linear models to estimate and verify the number of pedestrians and bicycles. Next, negative binomial models are developed to predict non-motorized crashes at a census tract level to identify influential and correlation factors of crashes with exposure. The results show a correlation between exposure and crashes. They also indicate that land use, certain age groups, income, home based work mode choice, access points, public transportation and special attractions have an influence on non motorized exposure and crashes. Based on these findings, the importance of selection of appropriate crash risk measures is discussed.




Spatial Analysis of Bicycle Use and Accident Risks for Cyclists


Book Description

Most developed countries nowadays face environmental, health and mobility problems as a consequence of widespread car use. Policies are now being reappraised in favour of more sustainable modes of transport. In particular, bicycle use holds the potential to provide a 'green' and healthy alternative to car commuting. There are however still important barriers that discourage people cycling... This thesis aims at identifying some of the main factors that influence cycle commuting and cycling accidents. Identifying such factors would in turn provide greater support to enable policy makers developing supportive environmental conditions for cycling. In the first part of this thesis, we examine which factors influence the spatial variation of bicycle use for commuting to work at the level of the municipalities in Belgium. Special attention is paid to bicycle-specific factors and spatial econometric methods are used to account for the presence of spatial effects in the data. The second part of this thesis examines which factors are associated with cycling accidents in Brussels. Spatial point pattern methods extended to networks are used to compare the 'locational tendencies' of cycling accidents officially registered by the police with those that are unregistered. An innovative case-control approach, based on a rigorous sampling design of controls and an exhaustive data collection of spatial factors, is also proposed to allow modelling the risk of cycling accident along the Brussels' road network. This thesis not only provides sound recommendations helping planners and policy makers to encourage bicycle use, but it also offers new research directions for pinpointing locations where accidents are more likely to occur.




Spatial Analysis Methods of Road Traffic Collisions


Book Description

Examine the Prevalence and Geography of Road CollisionsSpatial Analysis Methods of Road Traffic Collisions centers on the geographical nature of road crashes, and uses spatial methods to provide a greater understanding of the patterns and processes that cause them. Written by internationally known experts in the field of transport geography, the bo




Women's Issues in Transportation


Book Description

Women's Issues in Transportation: Summary of the 4th International Conference, Volume 2: Technical Papers includes 27 full peer-reviewed papers that were presented at the October 2009 conference. The conference highlighted the latest research on changing demographics that affect transportation planning, programming, and policy making, as well as the latest research on crash and injury prevention for different segments of the female population. Special attention was given to pregnant and elderly transportation users, efforts to better address and increase women's personal security when using various modes of transportation, and the impacts of extreme events such as hurricanes and earthquakes on women's mobility and that of those for whom they are responsible. TRB's Conference Proceedings 46: Women's Issues in Transportation, Volume 1: Conference Overview and Plenary Papers includes an overview of the October 2009 conference and six commissioned resource papers, including the two keynote presentations.




Traffic Monitoring Guide


Book Description




Bulletin of the Atomic Scientists


Book Description

The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.




The Urban Transport Crisis in Emerging Economies


Book Description

This edited volume discuses urban transport issues, policies, and initiatives in twelve of the world’s major emerging economies – Brazil, China, Colombia, India, Indonesia, Iran, Mexico, Nigeria, Russia, South Africa, Turkey, and Vietnam - countries with large populations that have recently experienced large changes in urban structure, motorization and all the associated social, economic, and environmental impacts in positive and negative senses. Contributions on each of these twelve countries focus on one or more major cities per country. This book aims to fill a gap in the transport literature that is crucial to understanding the needs of a large portion of the world’s urban population, especially in view of the southward shift in economic power. Readers will develop a better understanding of urban transport problems and policies in nations where development levels are below those of richer countries (mainly in the northern hemisphere) but where the rate of economic growth is often increasing at a faster rate than the wealthiest nations.




Theory and Practice in Policy Analysis


Book Description

Many books instruct readers on how to use the tools of policy analysis. This book is different. Its primary focus is on helping readers to look critically at the strengths, limitations, and the underlying assumptions analysts make when they use standard tools or problem framings. Using examples, many of which involve issues in science and technology, the book exposes readers to some of the critical issues of taste, professional responsibility, ethics, and values that are associated with policy analysis and research. Topics covered include policy problems formulated in terms of utility maximization such as benefit-cost, decision, and multi-attribute analysis, issues in the valuation of intangibles, uncertainty in policy analysis, selected topics in risk analysis and communication, limitations and alternatives to the paradigm of utility maximization, issues in behavioral decision theory, issues related to organizations and multiple agents, and selected topics in policy advice and policy analysis for government.




Risk Assessment for Neurobehavioral Toxicity


Book Description




Risk Assessment for Neurobehavioral Toxicity


Book Description

After three decades of research, neurobehavioral toxicity is now acknowledged as a significant outcome of chemical exposure. Its health and economic costs may exceed those by cancer by substantial amounts. This new perspective has been accompanied by efforts designed to explore the responsible mechanisms, to design applicable risk assessment procedures, and to determine the consequent policy implications. This publication includes 25 papers from international experts and includes: human neurobehavioral toxicity; animal behavioral methods; selected model compounds; and risk assessment.