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Dissertations / Theses on the topic 'Crash severity analysis'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Alfallaj, Ibrahim Saleh. "Analysis of Crash Location and Crash Severity Related to Work Zones in Ohio." University of Dayton / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1406912337.

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2

Dias, Ishani Madurangi. "Work zone crash analysis and modeling to identify factors associated with crash severity and frequency." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/20517.

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Doctor of Philosophy<br>Civil Engineering<br>Sunanda Dissanayake<br>Safe and efficient flow of traffic through work zones must be established by improving work zone conditions. Therefore, identifying the factors associated with the severity and the frequency of work zone crashes is important. According to current statistics from the Federal Highway Administration, 2,372 fatalities were associated with motor vehicle traffic crashes in work zones in the United States during the four years from 2010 to 2013. From 2002 to 2014, an average of 1,612 work zone crashes occurred in Kansas each year, ma

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3

Nevarez-Pagan, Alexis. "SEVERITY ANALYSIS OF DRIVER CRASH INVOLVEMENTS ON MULTILANE HIGH SPEED ARTERIAL CORRIDORS." Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3478.

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Arterial roads constitute the majority of the centerline miles of the Florida State Highway System. Severe injury involvements on these roads account for a quarter of the total severe injuries reported statewide. This research focuses on driver injury severity analysis of statewide multilane high speed arterials using crash data for the years 2002 to 2004. The first goal is to test different ways of analyzing crash data (by road entity and crash types) and find the best method of driver injury severity analysis. A second goal is to find driver, vehicle, road and environment related factors tha

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4

Seat, Conor Judd. "Crash Severity Distributions for Life-Cycle Benefit-Cost Analysis of Safety-Related Improvements on Utah Roadways." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/6875.

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The Utah Department of Transportation developed life-cycle benefit-cost analysis spreadsheets that allow engineers and analysts to evaluate multiple safety countermeasures. The spreadsheets have included the functionality to evaluate a roadway based on the 11 facility types from the Highway Safety Manual (HSM) with the use of crash severity distributions. The HSM suggests that local agencies develop crash severity distributions based on their local crash data. The Department of Civil and Environmental Engineering at Brigham Young University worked with the Statistics Department to develop cras

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5

Chen, Shin Huey. "Mining patterns and factors contributing to crash severity on road curves." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/31711/1/Shin_Chen_Citation.pdf.

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Road curves are an important feature of road infrastructure and many serious crashes occur on road curves. In Queensland, the number of fatalities is twice as many on curves as that on straight roads. Therefore, there is a need to reduce drivers’ exposure to crash risk on road curves. Road crashes in Australia and in the Organisation for Economic Co-operation and Development(OECD) have plateaued in the last five years (2004 to 2008) and the road safety community is desperately seeking innovative interventions to reduce the number of crashes. However, designing an innovative and effective inter

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6

EKRAM, AL-AHAD. "REDUCED VISIBILITY RELATED CRASHES IN FLORIDA: CRASH CHARACTERISTICS, SPATIAL ANALYSIS AND INJURY SEVERITY." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4306.

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Roadway crashes related to vision obstruction due to fog/smoke (FS) conditions constitute a challenge for traffic engineers. Previous research efforts mostly concentrated on the snow and rain related crashes. Statistics show that Florida is among the top three states in terms of crashes due to vision obstruction by FS. This research culminated in a comprehensive study of fog and smoke related crashes in the state of Florida. The analysis took into account the crashes that occurred between 2003 and 2007 on Florida state roads. Spatial analysis and injury severity analysis have been conducted an

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7

Ekram, Al-Ahad Mohammad Yaseen. "Reduced visibility related crashes in Florida crash characteristics, spatial analysis and injury severity /." Orlando, Fla. : University of Central Florida, 2009. http://purl.fcla.edu/fcla/etd/CFE0002903.

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8

Sameera, Chathuranga Koththigoda Kankanamge. "Crash analysis and road user survey to identify issues and countermeasures for older drivers in Kansas." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/35452.

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Master of Science<br>Department of Civil Engineering<br>Sunanda Dissanayake<br>The percentage of the U.S. population aged 65 years or older is increasing rapidly. Statistics also show this age group was 14.9 percent of the population in 2015 and is expected to be 20.7 to 21.4 percent for the years 2030–2050. Kansas has similar statewide trends with its aging population. Therefore, identifying issues, concerns, and factors associated with severity of older-driver crashes in Kansas is necessary. The Kansas Crash Analysis and Reporting System (KCARS) database maintained by Kansas Department of Tr

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9

Mohagheghi, Ali. "Effect of Pavement Condition on Traffic Crash Frequency and Severity in Virginia." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/100129.

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Previous studies show that pavement condition properties are significant factors to enhance road safety and riding experience, and pavements with low quality might have inadequate performance in terms of safety and riding experience. Pavement Management System (PMS) databases include pavement properties for each segment of the road collected by the agencies. Understanding the impact of road characteristics on crash frequency is a key step to prevent crashes. Whereas other studies analyzed the effect of different characteristics such as International Roughness Index (IRI), Rutting Depth (RD), A

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10

Ulfarsson, Gudmundur Freyr. "Injury severity analysis for car, pickup, sport utility vehicle and minivan drivers : male and female differences /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/10200.

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11

Alshehri, Abdulaziz Hebni. "Analysis of Factors Affecting Crash Severity of Pedestrian and Bicycle Crashes Involving Vehicles at Intersections." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1511983249414075.

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12

Bendall, William Bryson. "Retrospective Analysis of Injuries Sustained In Vehicle Front‐ and Back‐Overs in a Level I Pediatric Trauma Center." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/623628.

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A Thesis submitted to The University of Arizona College of Medicine - Phoenix in partial fulfillment of the requirements for the Degree of Doctor of Medicine.<br>Motor vehicle accidents involving pedestrians are some of the most common and lethal forms of injury for children in the United States. Among younger children, a common mechanism of action for severe trauma is when a vehicle runs over the child in a forward or backward motion at low speed resulting in a blunt crush injury. This typically occurs in non‐traffic settings including driveways, sidewalks, and roadways. Such incidents have b

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13

Wang, Chunyan. "Fatal crash trends and analysis in southeastern states." Diss., Georgia Institute of Technology, 2006. http://etd.gatech.edu/theses/available/etd-04092006-023047/.

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Thesis (Ph. D.)--Georgia Institute of Technology, 2006.<br>Includes bibliographical references (p. 209-211). Also available online via the Georgia Institute of Technology ETD website (http://etd.gatech.edu/).

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14

Moore, Darren N. "Mixed Multinomial Logit Analysis of Bicyclist Injury-severity in Single Motor Vehicle Crashes Based on Intersection and Non Intersection Locations." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1247599441.

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15

Pai, Chih-Wei. "An analysis of motorcyclist injury severity by various crash configurations at T-junctions in the United Kingdom." Thesis, Edinburgh Napier University, 2008. http://researchrepository.napier.ac.uk/Output/6200.

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Motorcyclists that have no protective structures while motorcycling as other occupants of automobiles do can be particularly vulnerable to accident injuries (i.e., motorcycles are not as crashworthy as automobiles). Motorcyclists' susceptibility to accident injuries in nature may act synergistically with the complexity of conflicting manoeuvres between motorcycles and other motor vehicles to increase their injury severities in accidents that take place at junctions (e.g., T-junction or crossroad). Previous studies have applied crash prediction models to investigate influential factors on the o

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16

Almonte-Valdivia, Ana. "Level-of-Service and Traffic Safety Relationship: An Exploratory Analysis of Signalized Intersections and Multiland High-Speed Arterial Corridors." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3372.

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Since its inception in 1965, the Level-of-Service (LOS) has proved to be an important and practical "quality of service" indicator for transportation facilities around the world, widely used in the transportation and planning fields. The LOS rates these facilities' traffic operating conditions through the following delay-based indicators (ordered from best to worst conditions): A, B, C, D, E and F. This LOS rating has its foundation on quantifiable measures of effectiveness (MOEs) and on road users' perceptions; altogether, these measures define a LOS based on acceptable traffic operating cond

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17

Dowell, Ashley Lynn. "Evaluating the Safety Effects of Signal Improvements." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3575.

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As a result of high crash frequencies on roadways, transportation safety has become a high priority for the United States Department of Transportation and the Utah Department of Transportation. A large percentage of fatal and injury crashes on roadways occur at intersections and traffic signals have been implemented to reduce these severe crashes. There is a need to evaluate the effectiveness of the traffic signal improvements through the development of Crash Modification Factors (CMFs). Recent research has shown that traditional safety evaluation methods have been inadequate in developing CMF

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18

Keller, Joanne Marie. "ANALYSIS OF TYPE AND SEVERITY OF TRAFFIC CRASHES AT SIGNALIZED INTERSECTIONS USING TREE-BASED REGRESSION AND ORDERED PROBIT MODELS." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4382.

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Many studies have shown that intersections are among the most dangerous locations of a roadway network. Therefore, there is a need to understand the factors that contribute to traffic crashes at such locations. One approach is to model crash occurrences based on configuration, geometric characteristics and traffic. Instead of combining all variables and crash types to create a single statistical model, this analysis created several models that address the different factors that affect crashes, by type of collision as well as injury level, at signalized intersections. The first objective was to

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19

Amarasingha, Niranga. "Improving safety of teenage and young adult drivers in Kansas." Diss., Kansas State University, 2012. http://hdl.handle.net/2097/14979.

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Doctor of Philosophy<br>Department of Civil Engineering<br>Sunanda Dissanayake<br>Young drivers have elevated motor vehicle crash rates compared to other drivers. This dissertation investigated characteristics, contributory causes, and factors which increase the injury severity of young driver crashes in Kansas by comparing them with more experienced drivers. Crash data were obtained from the Kansas Department of Transportation. Young drivers were divided into two groups: 15-19 years (teen) and 20-24 years (young adult) for a detailed investigation. Using data from 2006 to 2009, frequencies,

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20

Wang, Xuesong. "SAFETY ANALYSES AT SIGNALIZED INTERSECTIONS CONSIDERING SPATIAL, TEMPORAL AND SITE CORRELATION." Doctoral diss., University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3436.

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Statistics show that signalized intersections are among the most dangerous locations of a roadway network. Different approaches including crash frequency and severity models have been used to establish the relationship between crash occurrence and intersection characteristics. In order to model crash occurrence at signalized intersections more efficiently and eventually to better identify the significant factors contributing to crashes, this dissertation investigated the temporal, spatial, and site correlations for total, rear-end, right-angle and left-turn crashes. Using the basic regression

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21

Altwaijri, Saleh. "Analysing traffic crashes in Riyadh City using statistical models and geographic information systems." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/12556.

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Road safety is a serious societal concern in Riyadh city, Kingdom of Saudi Arabia. Because of the negative impact of traffic crashes which cause losses in the form of deaths, injuries and property damage, in addition to the pain and social tragedy affecting families of the victims, it is important for transport policy makers to reduce their impact and increase safety standards by reducing the severity and frequency of crashes in the city of Riyadh. It is therefore important to fully understand the relationship between traffic crash severity and frequency and their contributing factors so to es

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22

Das, Abhishek. "Analyses of Crash Occurence and Injury Severities on Multi Lane Highways Using Machine Learning Algorithms." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2576.

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Reduction of crash occurrence on the various roadway locations (mid-block segments; signalized intersections; un-signalized intersections) and the mitigation of injury severity in the event of a crash are the major concerns of transportation safety engineers. Multi lane arterial roadways (excluding freeways and expressways) account for forty-three percent of fatal crashes in the state of Florida. Significant contributing causes fall under the broad categories of aggressive driver behavior; adverse weather and environmental conditions; and roadway geometric and traffic factors. The objective of

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23

張智欽. "Analysis of Factors Influencing Crash Severity of Accidents in Taipei Signalized Intersectio." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/73011468890502532316.

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碩士<br>國立交通大學<br>交通運輸研究所<br>99<br>For two-vehicle crash accidents, one of the parties involved in an accident with more serious violation is termed as the first party. Most of the previous studies only consider the severity levels of the first party or combine the two parties in a whole. However, the severity levels of two parties involved in the same accident might be rather different, contributed by different driving behaviors, vehicle characteristics, traffic environment and other risk factors of both parties. Undoubtedly, to consider the severity levels of two parties along with correspondi

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24

Narayanamoorthy, Sriram. "On accommodating spatial dependence in bicycle and pedestrian injury counts by severity level." 2012. http://hdl.handle.net/2152/19698.

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This thesis proposes a new spatial multivariate count model to jointly analyze the traffic crash-related counts of pedestrians and bicyclists by injury severity. The modeling framework is applied to predict injury counts at a Census tract level, based on crash data from Manhattan, New York. The results highlight the need to use a multivariate modeling system for the analysis of injury counts by road-user type and injury severity level, while also accommodating spatial dependence effects in injury counts.<br>text

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