Online Program

Exploring EMS Reporting and Arrival Time in Fatal Traffic Crashes with Crash, Roadway, Environmental and Zonal Socio-economic Factors

Monday, November 2, 2015

Ahmad Abdel-Aty, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL
Jaeyoung Lee, Ph.D., Center for Advanced Transportation Systems Simulation, University of Central Florida, Orlando, FL
Qing Cai, PhD student, Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL

Emergency Medical Services (EMS) play a vital role in the post-crash effort to reduce fatalities by providing first-aid and transportation to medical facilities. This study aims to analyze the time required for EMS reporting and arrival in fatal traffic crashes and to identify crash, roadway, environmental and zonal socio-economic factors.


Times required for EMS reporting and arrival were calculated by location type (urban/rural) and roadway functional classification using Florida data (2005-2010). Furthermore, log-logistic and Weibull models were used to reveal contributing factors for the reporting and arrival times, respectively.


Although about 90% of fatal crashes are reported to EMS within ten minutes in both urban and rural settings, EMS average reporting time in rural areas (4.5 min) is greater than in urban areas (3 min). Moreover, freeways require longer time for EMS arrival (8.3 min) compared to other roadways (6.8 min). The modeling results reveal that both EMS reporting and arrival times are related to the crash (i.e. hit-and-run, etc.), roadway (i.e. lane counts, intersection, etc.), environmental (lighting, etc.), and zonal socio-economic factors (land-use, etc.).


The key findings from this study indicate that EMS reporting and arrival times differ significantly according to urban/rural designation and road functional classification, and that they have statistically significant relationships with various factors. It is expected that the findings from this study can be used to develop effective and practical strategic plans to minimize EMS reporting and arrival time and, therefore, decrease fatalities.

Learning Areas:

Other professions or practice related to public health
Program planning
Public health or related public policy
Public health or related research

Learning Objectives:
Analyze the report and response times of Emergency Medical Services in fatal roadway crashes in relation to multiple factors related to roadway characteristics, land use, and location.

Keyword(s): Emergency Medical Services, Motor Vehicles

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I am a student of Biomedical Sciences who has been a volunteer researcher for the past two years. I conduct research with multidisciplinary teams. My scientific interests include public health, research in injury mitigation, statistics, and data analysis.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.