Open Access. Powered by Scholars. Published by Universities.®
- Publication Year
Articles 1 - 30 of 161
Full-Text Articles in Engineering
Kentucky Traffic Collision Facts 2021 Report, Paul Ross, Eric Green, Christopher Blackden, Michael Fields, Kenneth Agent, Christopher Van Dyke, Ed Harding
Kentucky Traffic Collision Facts 2021 Report, Paul Ross, Eric Green, Christopher Blackden, Michael Fields, Kenneth Agent, Christopher Van Dyke, Ed Harding
Kentucky Transportation Center Research Report
Each year the Kentucky Transportation Center publishes the Traffic Collision Facts report in collaboration with the Commonwealth of Kentucky, Kentucky State Police, and Kentucky Transportation Cabinet. This is the fiscal year 2022 report, which covers collisions reported during calendar year 2021. For the year, 734 fatal crashes, 20,117 nonfatal crashes, and 88,440 property damage only crashes occurred on the state’s roadways. Overall, 109,291 crashes were reported in calendar year 2021, a 8.4 percent increase over calendar year 2020.
Kentucky Traffic Collision Facts 2020, Eric Green, Paul Ross, Christopher Blackden, Michael Fields, Kenneth Agent
Kentucky Traffic Collision Facts 2020, Eric Green, Paul Ross, Christopher Blackden, Michael Fields, Kenneth Agent
Kentucky Transportation Center Research Report
KENTUCKY’S TRAFFIC COLLISION FACTS report is based on collision reports submitted to the Kentucky State Police Records Branch. As required by Kentucky Revised Statutes 189.635:
“Every law enforcement agency whose officers investigate a vehicle accident of which a report must be made...shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau.”
The stated purpose of this requirement is to utilize data on traffic collisions for such purposes as will improve the traffic safety program in the Commonwealth.
Analysis Of Traffic Crash Data In Kentucky 2016-2020, Eric Green, Paul Ross, Christopher Blackden, Michael Fields, William Staats
Analysis Of Traffic Crash Data In Kentucky 2016-2020, Eric Green, Paul Ross, Christopher Blackden, Michael Fields, William Staats
Kentucky Transportation Center Research Report
This report documents analysis of traffic crash data in Kentucky. A primary objective of this study was to determine average crash statistics for Kentucky highways. Where used, rates were calculated for various highway types and for counties and cities. Difference criteria were used for exposure.
Average and critical numbers, SPFs, and crash rates were calculated for various highway types in rural and urban areas. These metrics rely on crashes identified on highways where Annual Average Daily Traffic (AADT) volumes were available. Data in this report may be used to help identify problem areas.
The other primary objective of this study …
2021 Safety Belt Usage Survey In Kentucky, Erin Lammers-Staats, Kenneth Agent, Eric Green
2021 Safety Belt Usage Survey In Kentucky, Erin Lammers-Staats, Kenneth Agent, Eric Green
Kentucky Transportation Center Research Report
The objective of the survey summarized in this report was to establish a statewide safety belt usage rate in Kentucky for 2021. This rate can be compared to those determined from previous surveys. The 2021 statewide survey documents the continued effect associated with law enforcement, related education, and general public attitude.
Analysis Of Traffic Crash Data In Kentucky 2015-2019, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Michael A. Fields, William Nicholas Staats
Analysis Of Traffic Crash Data In Kentucky 2015-2019, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Michael A. Fields, William Nicholas Staats
Kentucky Transportation Center Research Report
Executive Summary and Introduction
This report documents an analysis of traffic crash data in Kentucky. A primary objective of this study was to determine average crash statistics for Kentucky highways. Where used, rates were calculated for various types of highways and for counties and cities. Difference criteria were used for exposure.
Average and critical numbers, SPFs, and rates of crashes were calculated for various types of highways in rural and urban areas. These use crashes identified on highways where Annual Average Daily Traffic (AADT) volumes were available. The data in this report may be used to help identify problem areas. …
Kentucky Traffic Collision Facts 2019, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Michael A. Fields, Kenneth R. Agent
Kentucky Traffic Collision Facts 2019, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Michael A. Fields, Kenneth R. Agent
Kentucky Transportation Center Research Report
KENTUCKY’S TRAFFIC COLLISION FACTS report is based on collision reports submitted to the Kentucky State Police Records Branch. As required by Kentucky Revised Statutes 189.635:
“Every law enforcement agency whose officers investigate a vehicle accident of which a report must be made...shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau.”
The stated purpose of this requirement is to utilize data on traffic collisions for such purposes as will improve the traffic safety program in the Commonwealth.
Crash Data Analysis Tool: Research Report + User Guide, Eric R. Green, Paul Ross
Crash Data Analysis Tool: Research Report + User Guide, Eric R. Green, Paul Ross
Kentucky Transportation Center Research Report
This manual describes the Crash Data Analysis Tool (CDAT), which can be used by KYTC staff and the agency’s work partners to securely access crash datasets. CDAT users can query and download data using flags stored during post-processing. Unlike KyOPS, however, CDAT’s location data are validated using geographic coordinates and several of county, route, and milepoint fields to ensure crashes are properly geocoded. CDAT grants access to data and information that can be used in conjunction with KYTC’s Data Driven Safety Analysis (DDSA) Implementation Guide to conduct highway safety analysis numerous KYTC processes. Historically, the Cabinet’s Division of Traffic Operations …
Effect Of Socioeconomic Factors On Kentucky Truck Driver Crashes, Nikiforos Stamatiadis, Shraddha Sagar, Samantha Wright, Aaron Berry Cambron
Effect Of Socioeconomic Factors On Kentucky Truck Driver Crashes, Nikiforos Stamatiadis, Shraddha Sagar, Samantha Wright, Aaron Berry Cambron
Kentucky Transportation Center Research Report
Kentucky crash data for the 2015-2016 period reveal that per capita crash rates and increases in crash-related fatalities in the state outpaced the national average. To explain why the U.S. Southeast sees higher crash rates than other regions of the country, previous research has argued the region’s unique socioeconomic conditions provide a compelling explanation. Taking this observation as a starting point, this study uses an extensive crash dataset from Kentucky to examine the relationship between highway safety and socioeconomic and demographic characteristics. Its focus is single- and two-unit crashes that involve commercial motor vehicles (CMVs) and automobiles. Using binary logistic …
Effect Of Socioeconomic Factors On Crash Occurrence, Nikiforos Stamatiadis, Shraddha Sagar, Samantha Wright, Aaron Berry Cambron
Effect Of Socioeconomic Factors On Crash Occurrence, Nikiforos Stamatiadis, Shraddha Sagar, Samantha Wright, Aaron Berry Cambron
Kentucky Transportation Center Research Report
Road traffic crashes are a leading cause of death in the United States. In Kentucky, per capita crash rates and crash-related fatalities have outpaced the national average for over a decade. Wanting to explain why the U.S. Southeast sees higher crash rates than other regions, researchers have argued the region’s unique socioeconomic conditions provide a compelling explanation. Taking this observation as a starting point, this study examined the relationship between highway safety and socioeconomic characteristics using an extensive crash dataset from Kentucky. This research sought to identify at-risk drivers based on the socioeconomic and demographic attributes of the zip codes …
2019 Safety Belt Usage Survey In Kentucky, Erin Lammers-Staats, Kenneth R. Agent, Eric R. Green
2019 Safety Belt Usage Survey In Kentucky, Erin Lammers-Staats, Kenneth R. Agent, Eric R. Green
Kentucky Transportation Center Research Report
The objective of the survey summarized in this report was to establish a statewide safety belt usage rate in Kentucky for 2019. This rate can be compared to those determined from previous surveys. The 2019 statewide survey documents the continued effect associated with law enforcement, related education, and general public attitude.
Investigation Of The Accuracy Of Alcohol And Drug Involvement Reporting, William Nicholas Staats
Investigation Of The Accuracy Of Alcohol And Drug Involvement Reporting, William Nicholas Staats
Kentucky Transportation Center Research Report
Executive Summary
Researchers compared the 2013 to 2017 fatal crash data from the KSP database to the crash data from the FARS database to check the consistency and accuracy of alcohol and drug involvement reporting for drivers in the KSP database. The indications of alcohol and drug involvement in the FARS database were used as the ground truth due to the inclusion of laboratory test results confirming the presence of alcohol and/or drugs in a driver’s system. For the five-year study period, the indications for alcohol involvement were 85.8% consistent and the indications of drug involvement were 66.2% consistent between …
Analysis Of Traffic Crash Data In Kentucky (2014-2018), Eric R. Green, Kenneth R. Agent, Paul A. Ross
Analysis Of Traffic Crash Data In Kentucky (2014-2018), Eric R. Green, Kenneth R. Agent, Paul A. Ross
Kentucky Transportation Center Research Report
Executive Summary
This report documents an analysis of traffic crash data in Kentucky for the years of 2014-2018. A primary objective of this study was to determine average crash statistics for Kentucky highways. Rates were calculated for various types of highways and for counties and cities. Difference criteria were used for exposure.
Average and critical numbers and rates of crashes were calculated for various types of highways in rural and urban areas. These rates used crashes identified on highways where traffic volumes were available. Improved methods of identifying crash locations have resulted in higher rates for the last couple of …
Measuring Congestion For Strategic Highway Investment For Tomorrow (Shift) Implementation (Pl-32), Mei Chen, Xu Zhang, Fahmida Rahman, Jacob Brashear, Reginald R. Souleyrette
Measuring Congestion For Strategic Highway Investment For Tomorrow (Shift) Implementation (Pl-32), Mei Chen, Xu Zhang, Fahmida Rahman, Jacob Brashear, Reginald R. Souleyrette
Kentucky Transportation Center Research Report
The Kentucky Transportation Cabinet (KYTC) has moved toward a data-driven decision-making process, the Strategic Highway Investment Formula for Tomorrow (SHIFT), to allocate funds for highway improvement projects. SHIFT requires that candidate projects be scored on five critical metrics: safety, asset management, congestion, economic growth, and benefit/cost analysis.
The measure of congestion used in SHIFT 2018 was a combination of volume-to-service flow ratio (VSF) and design hourly volume (DHV). VSF is a traditional performance measure developed based on limited data, primarily for sketch planning purposes. However, it does not accurately reflect the dynamics of traffic congestion of many facilities.
This report …
Issues Pertaining To Rebuilt Vehicle Titles, Valerie J. Keathley, Andrew Martin, Jeeyen Koo, Jennifer R. Walton
Issues Pertaining To Rebuilt Vehicle Titles, Valerie J. Keathley, Andrew Martin, Jeeyen Koo, Jennifer R. Walton
Kentucky Transportation Center Research Report
In Kentucky, salvage titles are issued when a vehicle has been wrecked, destroyed, or damaged and the cost of repairs exceeds 75 percent of the vehicle’s fair market value. Once a vehicle is repaired to roadworthy condition it is issued a rebuilt title. Kentucky issued 110,000 rebuilt and salvage titles in 2018. Over the 2014 to 2018 period, the number of rebuilt and salvage titles issued climbed 31 percent. The economic impact of rebuilt and salvage titles in Kentucky is considerable — approximately $331 million in 2018, based on data for the taxable values or sales prices of vehicles.
To …
Kentucky Traffic Collision Facts 2018, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Kentucky State Police
Kentucky Traffic Collision Facts 2018, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Kentucky State Police
Kentucky Transportation Center Research Report
KENTUCKY’S TRAFFIC COLLISION FACTS report is based on collision reports submitted to the Kentucky State Police Records Branch. As required by Kentucky Revised Statutes 189.635, “every law enforcement agency whose officers investigate a vehicle accident of which a report must be made...shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau.” The stated purpose of this requirement is to utilize data on traffic collisions for such purposes as will improve the traffic safety program in the Commonwealth. Data contained in this report are based solely on the observations and judgements …
Inventory Of Hazardous Materials Shipments Moving Into Fayette County, Kentucky, Candice Y. Wallace, Bryan Gibson, Steven Douglas Kreis
Inventory Of Hazardous Materials Shipments Moving Into Fayette County, Kentucky, Candice Y. Wallace, Bryan Gibson, Steven Douglas Kreis
Kentucky Transportation Center Research Report
Each day, significant quantities of hazardous materials are transported through Fayette County. The bulk of the materials pass through without incident, but some vehicles carrying them are involved in roadway incidents and/or accidents. However, first responders and management personnel lack clear knowledge of what hazardous material commodities are on central Kentucky’s roads. This project was designed to provide a high level analysis of hazardous material commodity flows in Fayette County.
2018 Safety Belt Usage Survey In Kentucky, Erin Lammers-Staats, Kenneth R. Agent, Eric R. Green
2018 Safety Belt Usage Survey In Kentucky, Erin Lammers-Staats, Kenneth R. Agent, Eric R. Green
Kentucky Transportation Center Research Report
The objective of the survey summarized in this report was to establish a statewide safety belt usage rate in Kentucky for 2018. This rate can be compared to those determined from previous surveys. The 2018 statewide survey documents the continued increase in usage associated with the change in the law to allow primary enforcement and related education and enforcement.
Analysis Of Traffic Crash Data In Kentucky (2013-2017), Eric R. Green, Kenneth R. Agent, Jerry G. Pigman, Paul A. Ross
Analysis Of Traffic Crash Data In Kentucky (2013-2017), Eric R. Green, Kenneth R. Agent, Jerry G. Pigman, Paul A. Ross
Kentucky Transportation Center Research Report
Executive Summary
This report documents an analysis of traffic crash data in Kentucky for the years of 2013-2017. A primary objective of this study was to determine average crash statistics for Kentucky highways. Rates were calculated for various types of highways and for counties and cities. Difference criteria were used for exposure.
Average and critical numbers and rates of crashes were calculated for various types of highways in rural and urban areas. These rates used crashes identified on highways where traffic volumes were available. Improved methods of identifying crash locations have resulted in higher rates for the last couple of …
Improvement Of Fatal Crash Analysis And Follow-Up, William Nicholas Staats, Jerry G. Pigman, Kenneth R. Agent, Paul A. Ross
Improvement Of Fatal Crash Analysis And Follow-Up, William Nicholas Staats, Jerry G. Pigman, Kenneth R. Agent, Paul A. Ross
Kentucky Transportation Center Research Report
Executive Summary
Fatalities resulting from traffic crashes in Kentucky increased from a low of 638 in 2013 to 834 in 2016 (a 31% increase), and there is not a full understanding of the underlying causes for this trend. This study analyzes fatal crashes using data from both Kentucky’s crash reports and the National Highway Traffic Safety Administration’s (NHTSA) Fatal Accident Reporting System (FARS) to identify countermeasures to combat increasing fatal crash rates. In addition, this study compares Kentucky’s crash reports to the fatal crash data in FARS to identify data inconsistencies and recommend procedures to eliminate these inconsistencies.
Emphasis was …
Us 31w Jefferson County Pavement Surface Treatment Evaluation, Tim C. Scully Jr.
Us 31w Jefferson County Pavement Surface Treatment Evaluation, Tim C. Scully Jr.
Kentucky Transportation Center Research Report
Reflective cracking inevitably occurs when asphaltic concrete (AC) is placed over an existing unfractured Portland cement concrete (PCC) pavement. However, manufacturers state their products will mitigate reflective cracking, therefore extending the pavement life cycle.
To evaluate the performance of each manufacturer’s product, an experimental test section consisting of a southbound and northbound segment was established on US 31W in Louisville, Kentucky. The funding for this project will help track the performance of each product from the construction phase through the long-term monitoring phase. Hall Construction performed all work.
Developing Knowledge Management Strategies, Bryan Gibson, Candice Y. Wallace, Steven Douglas Kreis
Developing Knowledge Management Strategies, Bryan Gibson, Candice Y. Wallace, Steven Douglas Kreis
Kentucky Transportation Center Research Report
Retirements and other staff changes have led to a loss of institutional knowledge across public agencies. These changing workforce dynamics have highlighted the study of knowledge management, and how organizations can best retain their core knowledge bases. Key to understanding knowledge management is how organizations have approached the issue and the most effective methods and processes they have used to retain, store, and disseminate knowledge. Part of the knowledge management discussion includes core competencies, or what basic knowledge and skills are essential to an organization’s mission. Also, considering the impacts of outsourcing on public employment, is another key to understanding …
Kentucky Traffic Collision Facts 2017, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Kentucky State Police
Kentucky Traffic Collision Facts 2017, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Kentucky State Police
Kentucky Transportation Center Research Report
KENTUCKY’S TRAFFIC COLLISION FACTS report is based on collision reports submitted to the Kentucky State Police Records Branch. As required by Kentucky Revised Statutes 189.635, “every law enforcement agency whose officers investigate a vehicle accident of which a report must be made...shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau.” The stated purpose of this requirement is to utilize data on traffic collisions for such purposes as will improve the traffic safety program in the Commonwealth. Data contained in this report are based solely on the observations and judgements …
Accelerated Innovation Deployment (Aid) Demonstration: Kytc — Roundabout Installation Project In London, Kentucky, Jeff Jasper, Adam J. Kirk
Accelerated Innovation Deployment (Aid) Demonstration: Kytc — Roundabout Installation Project In London, Kentucky, Jeff Jasper, Adam J. Kirk
Kentucky Transportation Center Research Report
This document serves as the final report on the construction and opening of the Roundabout Project in London, Kentucky (Kentucky Item Number 11‐904.1). This project (hereafter referred to as the London Roundabout) was constructed on the authority of the Kentucky Transportation Cabinet (KYTC), which received an Accelerated Innovation Deployment (AID) Demonstration grant of $1 million to offset project construction costs. The AID Demonstration program requires that award recipients submit a final report to the Federal Highway Administration (FHWA) within six months of project completion. The purpose of this report is to document the project delivery and construction processes, benefits, and …
Analysis Of Traffic Crash Data In Kentucky (2012-2016), Eric R. Green, Kenneth R. Agent, Jerry G. Pigman, Paul A. Ross
Analysis Of Traffic Crash Data In Kentucky (2012-2016), Eric R. Green, Kenneth R. Agent, Jerry G. Pigman, Paul A. Ross
Kentucky Transportation Center Research Report
This report documents an analysis of traffic crash data in Kentucky for the years of 2012 through 2016. A primary objective of this study was to determine average crash statistics for Kentucky highways. Rates were calculated for various types of highways and for counties and cities. Difference criteria were used for exposure.
The other primary objective of this study was to provide data that can be used in the preparation of the problem identification portion of Kentucky’s Annual Highway Safety Plan. County and city crash statistics were analyzed. A summary of results and recommendations in several problem identification areas is …
2017 Safety Belt Usage Survey In Kentucky, Kenneth R. Agent, Eric R. Green, Erin Lammers-Staats
2017 Safety Belt Usage Survey In Kentucky, Kenneth R. Agent, Eric R. Green, Erin Lammers-Staats
Kentucky Transportation Center Research Report
The use of safety belts and child safety seats is a proven means of reducing injuries to motor vehicle occupants involved in traffic crashes. The objective of the survey summarized in this report was to establish a statewide safety belt usage rate in Kentucky for 2017. This rate can be compared to those determined from previous surveys. The 2017 statewide survey documents the continued increase in usage associated with the change in the law to allow primary enforcement and related education and enforcement.
Collection And Analysis Of 2013-2014 Travel Time Data, Mei Chen, Xu Zhang
Collection And Analysis Of 2013-2014 Travel Time Data, Mei Chen, Xu Zhang
Kentucky Transportation Center Research Report
This report documents the findings of Planning Study 27, Collection and Analysis of 2013-2014 Travel Time Data, which is a continuation of Planning Study 24, Analysis of Historical Travel Time Data. The main scope is to analyze newly acquired link-referenced speed data on Kentucky roads from 2013 and 2014.
Results of the analysis demonstrate the value of probe data in measuring and tracking the performance of roadways across several years. In addition, such data can help KYTC and MPOs identify bottlenecks in the network, prioritize improvement strategies, and assess the effectiveness of projects. As data collection techniques advance, …
Kentucky Traffic Collision Facts 2016, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Kentucky State Police
Kentucky Traffic Collision Facts 2016, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Kentucky State Police
Kentucky Transportation Center Research Report
KENTUCKY’S TRAFFIC COLLISION FACTS report is based on collision reports submitted to the Kentucky State Police Records Branch. As required by Kentucky Revised Statutes 189.635, “every law enforcement agency whose officers investigate a vehicle accident of which a report must be made...shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau.” The stated purpose of this requirement is to utilize data on traffic collisions for such purposes as will improve the traffic safety program in the Commonwealth. Data contained in this report are based solely on the observations and judgements …
Analysis Of Traffic Crash Data In Kentucky (2011-2015), Eric R. Green, Kenneth R. Agent, Jerry G. Pigman, Michael A. Fields
Analysis Of Traffic Crash Data In Kentucky (2011-2015), Eric R. Green, Kenneth R. Agent, Jerry G. Pigman, Michael A. Fields
Kentucky Transportation Center Research Report
This report documents an analysis of traffic crash data in Kentucky for the years of 2011 through 2015. A primary objective of this study was to determine average crash statistics for Kentucky highways. Rates were calculated for various types of highways and for counties and cities. Difference criteria were used for exposure.
2016 Safety Belt Usage Survey In Kentucky, Kenneth R. Agent, Eric R. Green, Michael A. Fields
2016 Safety Belt Usage Survey In Kentucky, Kenneth R. Agent, Eric R. Green, Michael A. Fields
Kentucky Transportation Center Research Report
The use of safety belts and child safety seats is a proven means of reducing injuries to motor vehicle occupants involved in traffic crashes. There have been various methods used in efforts to increase safety belt and safety seat usage. Past efforts have included public information campaigns, local and statewide legislation, and enforcement of the legislation.
The objective of the survey summarized in this report was to establish a statewide safety belt usage rate in Kentucky for 2016. This rate can be compared to those determined from previous surveys. The 2016 statewide survey documents the continued increase in usage associated …
Kentucky Traffic Collision Facts 2015, Kentucky Transportation Center, Kentucky State Police
Kentucky Traffic Collision Facts 2015, Kentucky Transportation Center, Kentucky State Police
Kentucky Transportation Center Research Report
KENTUCKY’S TRAFFIC COLLISION FACTS report for 2015 is based on collision reports submitted to the Kentucky State Police Records Branch. As required by Kentucky Revised Statutes 189.635, “every law enforcement agency whose officers investigate a vehicle accident of which a report must be made...shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau.” The stated purpose of this requirement is to utilize data on traffic collisions for such purposes as will improve the traffic safety program in the Commonwealth. Data contained in this report are based solely on the observations …