An approach to investigate relationship between speed and safety on urban arterials

Download

index.pdf

Date

2008

Author

Ardiç Eminağa, Zerrin

Metadata

Show full item record

Item Usage Stats

279
views

100
downloads

Traffic safety is an important problem in today’s world with increasing number of fatalities and injuries in traffic accidents. For the solution of this problem, determination of accident prone locations on a network and reasons behind is an essential step, which is studied to some extend via different traffic accident analyses in the literature. While major factors affecting accident risk, such as speed, congestion, infrastructural aspects are known, it is still very difficult to figure out the interaction among these factors, due to complexity in the spatial and temporal distribution of the aforementioned factors and traffic network characteristics. While the case of accident analysis on highways is simpler, in case of urban roads, it requires more effort due to more complex traffic networks with quite a number of conflict points and varying flow characteristics. To investigate possible relationships between speed and accident occurrence on urban arterials, a Geographic Information Systems based accident analysis methodology (GIS-TAAM) is developed in this study. This methodology uses time-dependent average link speeds (calculated from GPS-based data) and accident history of links, and three safety measures in thematic accident maps: i) total number of accident, ii) a severity index based on number of fatality and injury accidents, and iii) an alternative severity index based on total number of fatalities and injuries. The implementation of the proposed methodology and its deliverables are discussed over a pilot study on İnönü Boulevard Eskişehir Road, Ankara.

Subject Keywords

Civil engineering.

URI

http://etd.lib.metu.edu.tr/upload/12609345/index.pdf
https://hdl.handle.net/11511/17564

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Development of an expert system for the quantification of fault rates in traffic accidents Cangul, Eren; Birgönül, Mustafa Talat; Department of Civil Engineering (2010) Traffic accidents which damage the safety of human beings are one of the most important problems due to their material losses and effects to human health. Although continuous improvements are made by the governments; losses of traffic accidents are still a significant issue all over the world. The usual studies realized so far are generally related with the accident prevention models. However, there has not been much research done concerning the situation after the traffic accidents happen. After occurrence...
Dynamic effects of moving traffic on railway bridges Cinek, Fatih; Yılmaz, Çetin; Department of Civil Engineering (2010) In this study, dynamic effects on high speed railway bridges under moving traffic are investigated. Within this context, the clear definition of the possible dynamic effects is provided and the related studies that exist in literature are investigated. In the light of those studies, analytical procedures that are defined to find the critical dynamic responses such as deflections, accelerations and resonance conditions are examined and a MatLab programming language is written to obtain the responses for diff...
Interactions between Driving Skills on Aggressive Driving: Study among Chinese Drivers WU, Chaozhong; CHU, Wenhui; ZHANG, Hui; Özkan, Türker (SAGE Publications, 2018-12-01) Aggressive driving has attracted significant attention recently with the increase in related road traffic collisions occurring in China. This study aims to investigate the effect of driving skills on aggressive driving behaviors and traffic accidents to find implications for traffic safety improvement in China. A total of 735 Chinese drivers were recruited to complete a self-reported survey including demographic information, the translated Driver Skill Inventory (DSI), and Driver Aggression Indicator Scale ...
Seismic response of multi-span highway bridges with two-column reinforced concrete bents including foundation and column flexibility Yılmaz, Taner; Caner, Alp; Department of Civil Engineering (2008) Seismic design of highway bridges has improved as a result of the experience gained from large earthquakes of the last thirty years. Ductility demand and reserved capacity are extremely important response measures used in new bridge designs to assess target damage levels. However, the application of practical design approaches specified in bridge design codes is not well-defined for bridges over flexible foundations. Within the scope of this research, thirty two bridge models having varying column aspect ra...
Examination of the Relationship between the Vehicle Segment Used and Human Factors in Driving. Azık, Derya; Yüzer Günay, Emel; Yüce, Ayşe Nur; Öz, Bahar (2019-07-05) Road traffic accidents are important health problems globally and each year approximately 1.3 million people lose their lives and 50 million people get severely injured on the world’s roads as a result of these accidents (WHO,2015). In order to control road traffic accidents, a growing body of the literature investigates risks factors that could be broadly categorized as human, vehicle and environmental related factors (Shinar, 2007). However, while there are many studies that separately investigate these b...

Citation Formats

Z. Ardiç Eminağa, “An approach to investigate relationship between speed and safety on urban arterials,” M.S. - Master of Science, Middle East Technical University, 2008.