Traffic Accidents at Hazardous Locations of Urban Roads

Obaidat , Mahmoud; Thanaa M. Ramadan

Article Details

Traffic Accidents at Hazardous Locations of Urban Roads

Authors:

Obaidat , Mahmoud | Thanaa M. Ramadan

Publisher:

Jordan University of Science and Technology : Deanship of Research

Main Topics:

Engineering and applied operations

Journal:

Jordan Journal of Civil Engineering 2012 Vol.6 Issue 4, pp.436-447

Document Type:

Article

Publication Date:

10/2012

Document Language:

English

Document ID (Org No.):

32520

Frequency:

Quarterly

eISSN:

2225157X

pISSN:

19930461

Descriptors:

Keywords:

Abstract:

 This study aims at highlighting the most contributing and influential factors to accident occurrence athazardous locations of local urban roads, and correlating accident characteristics to different factors includinggeometric elements, traffic speed, pavement type, lighting conditions, type of collisions, pedestrian facilitiesexistence and traffic conditions.
The study was conducted using twenty-eight hazardous locations at Amman-Jordan roads. Each of thehazardous locations had at least twenty accidents and two fatality records per year. Data were collectedthrough different sources that included Great Amman Municipality, Traffic Institute, Police TrafficDepartment and field studies. Different stepwise statistical regression models were developed to correlateaccident characteristics with the studied variables. It was found that the logarithmic and linear models werethe most significant and realistic models that can be used to predict the relationship between the accidentcharacteristics as a dependent variable and the other studied variables as independent variables. Thedeveloped models were strong and predictable because the coefficient of multiple determinations was veryclose to the adjusted coefficient of multiple determinations. The following variables were found to be themost significant contributors to traffic accidents at hazardous locations: average running speed, posted speed,maximum and average degree of horizontal curves, number of vertical curves, median width, type of roadsurface, lighting (day or night), number of vehicles per hour, number of pedestrian crossing facilities andpercentage of trucks.
The study could open the door for planners and traffic engineers to overcome the problems associated withtraffic accident occurrence at hazardous locations and enhance their safety. The developed models showedthat accident characteristics such as number of accidents, number of fatalities, number of injuries, type ofaccident and number of vehicles involved in accidents, and statistics of hazardous locations could bepredicted if the traffic conditions, geometric elements and environmental variables are known. The studycould also be enhanced if incorporated with drivers’ characteristics including socio-economic data.

Article Details

Traffic Accidents at Hazardous Locations of Urban Roads

Authors:

Obaidat , Mahmoud | Thanaa M. Ramadan

Publisher:

Jordan University of Science and Technology : Deanship of Research

Main Topics:

Engineering and applied operations

Journal:

Jordan Journal of Civil Engineering 2012 Vol.6 Issue 4, pp.436-447

Document Type:

Article

Publication Date:

10/2012

Document Language:

English

Document ID (Org No.):

32520

Frequency:

Quarterly

eISSN:

2225157X

pISSN:

19930461

Descriptors:

ENGINEERING DESIGN

TRAFFIC ENGINEERING

TRAFFIC SAFETY

URBAN AREAS

TRAFFIC ACCIDENTS

TRAFFIC

URBAN PLANNERS

JORDAN

Hazardous locations

Traffic accidents

Geometric elements of roads

Statistical models

Urban roads

Issues

Article Details

Authors: Obaidat , Mahmoud | Thanaa M. Ramadan

Publisher: Jordan University of Science and Technology : Deanship of Research

Main Topics: Engineering and applied operations

Journal: Jordan Journal of Civil Engineering 2012 Vol.6 Issue 4, pp.436-447

Document Type: Article

Publication Date: 10/2012

Document Language: English

Document ID (Org No.): 32520

Frequency: Quarterly

eISSN: 2225157X

pISSN: 19930461

Descriptors:

Issues

Authors:

Obaidat , Mahmoud | Thanaa M. Ramadan

Publisher:

Jordan University of Science and Technology : Deanship of Research

Main Topics:

Engineering and applied operations

Journal:

Jordan Journal of Civil Engineering 2012 Vol.6 Issue 4, pp.436-447

Document Type:

Article

Publication Date:

10/2012

Document Language:

English

Document ID (Org No.):

32520

Frequency:

Quarterly

eISSN:

2225157X

pISSN:

19930461