Statistical analysis of crashes occurring at intersections in malfunction flash

dc.contributor.advisor Hunter, Michael P.
dc.contributor.author Watson, Christopher Earl en_US
dc.contributor.committeeMember Meyer, Michael
dc.contributor.committeeMember Rodgers, Michael
dc.contributor.department Civil and Environmental Engineering en_US
dc.date.accessioned 2009-01-22T15:41:28Z
dc.date.available 2009-01-22T15:41:28Z
dc.date.issued 2008-11-19 en_US
dc.description.abstract This thesis presents an analysis of the characteristics of malfunction flash incidents based on the Georgia Department of Transportation crash reporting database. Malfunction flash is an unintentional state of flash mode in intersection signal hardware. The flash mode is a signal indication of yellow/red or red/red flash. The flash mode can be due to many issues, such as hardware failure, damage, or storms. Crash reports are completed by police officers at the scene. After processing by the local jurisdiction reports are sent to GDOT for archiving and analysis. GDOT archives the reports in a PDF image format without editable text. This research will develop a procedure to convert the archived PDF reports to text files using optical character recognition (OCR) software. The developed procedure will extract the description paragraph of the incident from the PDF. The extracted descriptions may then be searched for useful information about the incident. The text files will be run through a filter for keywords, such as; "malfunction flash," "red/red flash," "yellow/red flash," and others. Incidents flagged by the keywords will be reexamined to determine if they are malfunction flash incidents. The 2006 GDOT incident data base will be used for this effort. From an original possible candidate list of 70,000 signalized intersection incidents malfunction incidents will be identified using this method. A statistical analysis will be completed seeking trends and important characteristics of malfunction incidents. en_US
dc.description.degree M.S. en_US
dc.identifier.uri http://hdl.handle.net/1853/26508
dc.publisher Georgia Institute of Technology en_US
dc.subject Flashing signal en_US
dc.subject Yellow/red en_US
dc.subject Red/red en_US
dc.subject Malfunction flash en_US
dc.subject.lcsh Electronic traffic controls
dc.subject.lcsh Traffic safety
dc.subject.lcsh Traffic signs and signals
dc.subject.lcsh Traffic accidents Statistics
dc.title Statistical analysis of crashes occurring at intersections in malfunction flash en_US
dc.type Text
dc.type.genre Thesis
dspace.entity.type Publication
local.contributor.advisor Hunter, Michael P.
local.contributor.corporatename School of Civil and Environmental Engineering
local.contributor.corporatename College of Engineering
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relation.isOrgUnitOfPublication 88639fad-d3ae-4867-9e7a-7c9e6d2ecc7c
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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