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Full-Text Articles in Engineering

Fill Materials At Integral End Bents, Charlie Sun, Tony Beckham Mar 2022

Fill Materials At Integral End Bents, Charlie Sun, Tony Beckham

Kentucky Transportation Center Research Report

Jointless bridge designs have become increasingly popular due to their low construction and maintenance costs. But this design carries risks. Most notably, integral end bents can be displaced and undergo settlement due to soil movement in embankments and loads carried by the superstructure. In response, the Kentucky Transportation Cabinet (KYTC) devised a novel treatment for end bent and abutment backfills on low- and middle-span concrete bridges in which elasticized geofoam is placed between geosynthetically confined soil and an integral end bent (GCS-IEB). However, this design requires modification where the elasticized geofoam and overlying pavement meet. Using elasticized geofoam is also ...


Electric Vehicles: Analysis Of Revenue Issues And Charging Station Implementation Plans, Chris Van Dyke, Bryan Gibson, Ryan Griffith, Andrew Martin, Jeeyen Koo, Doug Kreis Mar 2022

Electric Vehicles: Analysis Of Revenue Issues And Charging Station Implementation Plans, Chris Van Dyke, Bryan Gibson, Ryan Griffith, Andrew Martin, Jeeyen Koo, Doug Kreis

Kentucky Transportation Center Research Report

No abstract provided.


Optimizing Commercial Vehicle Enforcement Investments And Activities To Improve Safety And Increase Revenue Collections, Brian Howell, Jennifer Walton, Andrew Martin Jan 2022

Optimizing Commercial Vehicle Enforcement Investments And Activities To Improve Safety And Increase Revenue Collections, Brian Howell, Jennifer Walton, Andrew Martin

Kentucky Transportation Center Research Report

The Kentucky Transportation Cabinet (KYTC) owns and maintains 14 fixed weigh stations for commercial vehicle enforcement. The Kentucky State Police (KSP) is responsible for staffing these facilities to conduct enforcement, while KYTC is responsible for constructing and maintaining these facilities. Like many states, Kentucky has experienced a decline of enforcement personnel to operate weigh stations limiting its ability to conduct inspections for safety enforcement and revenue collection. This study analyzes three CMV facilities for their impact on safety enforcement and revenue collection and determines their viability for potential replacement. All three existing weigh stations in Hardin, Fulton, and Henderson counties ...


Best Practices For Performance Measurement In Transportation Operations And Maintenance, Bryan Gibson, Rachel Catchings, Chris Van Dyke, Steve Waddle, Doug Kreis Dec 2021

Best Practices For Performance Measurement In Transportation Operations And Maintenance, Bryan Gibson, Rachel Catchings, Chris Van Dyke, Steve Waddle, Doug Kreis

Kentucky Transportation Center Research Report

Public agencies benefit from measuring their performance as it helps to focus employee and organizational activities. State departments of transportation have become more performance-oriented over the past two decades and routinely collect data on highway safety, infrastructure condition, system operations, project delivery, winter maintenance, transit, bicycle and pedestrian facilities, and customer service. While the Kentucky Transportation Cabinet (KYTC) use performance measures in a variety of areas, the agency wants to adopt new metrics related to mobility and the responsiveness of maintenance operations. This report documents performance measurement strategies used at state transportation agencies throughout the country and proposes new performance ...


A Review Of Kentucky’S Extended-Weight Hauling Programs, P. Gayle Marks, Jon Wilcoxson, Bryan Gibson, Chris Van Dyke, Andrew Martin, Jennifer Walton, Doug Kreis Nov 2021

A Review Of Kentucky’S Extended-Weight Hauling Programs, P. Gayle Marks, Jon Wilcoxson, Bryan Gibson, Chris Van Dyke, Andrew Martin, Jennifer Walton, Doug Kreis

Kentucky Transportation Center Research Report

Kentucky established its Extended Weight Coal or Coal By-products Haul Road System (EWCHRS) to increase the state’s competitiveness within the coal industry and reduce financial burdens on coal haulers. A new extended-weight haul system for unrefined petroleum products will come online in 2022. To facilitate enforcement of weight limits throughout Kentucky, this report surveys literature on how overweight vehicles affect roads and bridges, describes statutes and regulations governing weight limits in the state, discusses policies and strategies used throughout the US to handle overweight vehicles, and makes recommendations for improving extended-weight policies in Kentucky. It is apparent that pavements ...


Assessment Of Deteriorated Structural Concrete To Provide Durable Repairs, Theodore Hopwood, Christopher Goff, Sudhir Palle Nov 2021

Assessment Of Deteriorated Structural Concrete To Provide Durable Repairs, Theodore Hopwood, Christopher Goff, Sudhir Palle

Kentucky Transportation Center Research Report

Most of the structural elements on Kentucky bridges are made of reinforced concrete. Many of these elements deteriorate as a result of corrosion of the reinforcing steel caused by carbonation and — primarily — applications of chlorides by the Kentucky Transportation Cabinet (KYTC). Corrosion of reinforcing steel is reviewed along with assessment procedures that leverage nondestructive evaluation (NDE) methods and related laboratory and field tests. Several maintenance procedures are discussed, including the application of sealers and coatings, patch and major concrete repairs, and electrochemical methods. Incorporating NDE and test results into maintenance procedure selection is discussed. Recommendations are provided on expanding application ...


Kentucky Traffic Collision Facts 2020, Eric Green, Paul Ross, Christopher Blackden, Michael Fields, Kenneth Agent Sep 2021

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 Sep 2021

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 ...


Crash Data Analysis Tool 2.0 Research Report And User Guide, Eric Green, Paul Ross Sep 2021

Crash Data Analysis Tool 2.0 Research Report And User Guide, Eric Green, Paul Ross

Kentucky Transportation Center Research Report

No abstract provided.


2021 Safety Belt Usage Survey In Kentucky, Erin Lammers, Kenneth Agent, Eric Green Sep 2021

2021 Safety Belt Usage Survey In Kentucky, Erin Lammers, 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.


In-Cab Alert System For Commercial Motor Vehicle Drivers, Brian Howell, Jennifer Walton, Jeeyen Koo Sep 2021

In-Cab Alert System For Commercial Motor Vehicle Drivers, Brian Howell, Jennifer Walton, Jeeyen Koo

Kentucky Transportation Center Research Report

In-cab telematic devices use an increasingly robust data platform and can be used to share safety alerts with other commercial vehicle drivers (CMV) drivers. Real-time alert data can come from state transportation agencies as well as from private companies. To address common quality and coordination issues among differing data sources, the Kentucky Transportation Center (KTC) partnered with the Kentucky Transportation Cabinet (KYTC) and a private vendor, PrePass, to share its App used to send information to CMV drivers. The project demonstrated a proof of concept for the delivery of timely in-cab alerts to warn CMV drivers of approaching roadway hazards ...


Improving Overweight And Over-Dimensional Logistics And Truck Routing, Jerry Kissick, Jerry Pigman, Jennifer Walton Sep 2021

Improving Overweight And Over-Dimensional Logistics And Truck Routing, Jerry Kissick, Jerry Pigman, Jennifer Walton

Kentucky Transportation Center Research Report

In 2012, the Kentucky Transportation Cabinet’s (KYTC) Division of Motor Carriers (DMC) issued 98,196 overweight or over-dimensional (OW/OD) permits. To determine whether a route can accommodate an OW/OD vehicle, analysts must have current and accurate data on construction schedules, road conditions, and detour routes, among other factors. This study documents processes used by DMC for permitting and routing OW/OD vehicles. It includes detailed flowcharts that capture each aspect analysts follow during the decision-making process. As part of this project, state transportation agency representatives from states bordering Kentucky (Illinois, Indiana, Ohio, West Virginia, Virginia, Tennessee, and ...


Evaluating The Safety Cultures Of Kentucky Transportation Cabinet Maintenance Crews, Ashtarout Ammar, Zamaan Al-Shabbani, Hala Nassereddine, Chris Van Dyke, Gabriel B. Dadi Aug 2021

Evaluating The Safety Cultures Of Kentucky Transportation Cabinet Maintenance Crews, Ashtarout Ammar, Zamaan Al-Shabbani, Hala Nassereddine, Chris Van Dyke, Gabriel B. Dadi

Kentucky Transportation Center Research Report

Highway work zones can be dangerous and unpredictable. Between 2003 and 2017, over 1,800 workers died on road construction sites. Eliminating injuries and deaths requires state transportation agencies to adopt robust safety cultures as there is a clear relationship between these cultures and worker behaviors. The Kentucky Transportation Cabinet (KYTC) is committed to improving safety performance by nurturing a positive safety climate among highway maintenance crews. To understand the safety cultures of KYTC maintenance crews, researchers administered a survey based on the Safety Climate Assessment Tool (S-CAT) developed by the Center for Construction Research and Training (CPWR). This is ...


Evaluation Of Liquid Deicing Materials For Winter Maintenance Applications, Erin Lammers Jul 2021

Evaluation Of Liquid Deicing Materials For Winter Maintenance Applications, Erin Lammers

Kentucky Transportation Center Research Report

Winter weather can often pose difficulties for transportation agencies as they work to clear roads of snow and ice quickly so that motorists can travel safely and efficiently. Kentucky has made efforts to maximize efficiency within its winter maintenance program by focusing on optimized equipment usage and personnel time management. In this study, KYTC evaluated anti-icers and how their performance compared to the current performance of brine and calcium chloride mixture. New brine additives claim to offer better results, but there is very little guidance about how to systematically evaluate new anti-icers. Researchers were tasked with developing a testing methodology ...


Understanding And Efficiently Managing Right-To-Take Challenges In Kentucky, Pam Clay-Young, Steve Waddle, Bryan Gibson Jun 2021

Understanding And Efficiently Managing Right-To-Take Challenges In Kentucky, Pam Clay-Young, Steve Waddle, Bryan Gibson

Kentucky Transportation Center Research Report

Executive Summary

Kentucky constitutional and statutory law requires that a fair process be in place to let a property owner challenge a condemnor’s right to acquire private property, including a right to appeal the initial decision. Property acquired by a condemnor must be for public use, and property owners have the right to an immediate and expedited hearing on right-to-take. Two of these requirements will remain in place regardless of statutory revisions: the requirement that property must be needed (i.e., not arbitrary) for public use, and the right to one appeal. Only an amendment(s) to the Kentucky ...


Investigation Of Workflow Processes And Best Practices In Kentucky’S Cdl Program, Valerie Keathley-Helil, Andrew Martin, Brian Howell, Jennifer Walton Jun 2021

Investigation Of Workflow Processes And Best Practices In Kentucky’S Cdl Program, Valerie Keathley-Helil, Andrew Martin, Brian Howell, Jennifer Walton

Kentucky Transportation Center Research Report

Kentucky’s Division of Driver Licensing maintains the driver history records for all licensed drivers in Kentucky. It serves as the state driver licensing agency and is the locus for meeting the federal CDL requirements under 49 CFR 384. Kentucky relies on FMCSA’s Commercial Driver’s License Program Implementation (CDLPI) grant funding to subsidize salaries for Federally Funded Temporary Labor (FFTL). FFTLs verify and process documents as well as field phone calls from customers. DDL administrators say they cannot meet the CDL reporting timeframes without FFTL labor, but the agency is not able to fund temporary or full-time staff ...


Economic And Environmental Benefits Of A Reduced Roadside Mowing Program For Kentucky Highways, Chris Van Dyke, Candice Wallace, Doug Kreis Jun 2021

Economic And Environmental Benefits Of A Reduced Roadside Mowing Program For Kentucky Highways, Chris Van Dyke, Candice Wallace, Doug Kreis

Kentucky Transportation Center Research Report

A growing number of state departments of transportation (DOTs) are introducing conservation mowing programs that aim to reduce the frequency of roadside mowing while expanding the footprint of pollinator habitat. Wanting to get a better handle on the utility conservation mowing, the Kentucky Transportation Cabinet (KYTC) funded this study to explore the economic and environmental benefits that accrue from mowing less often. This report presents a synthesis of best conservation mowing practices based on a review of landscape management policies, programs, and procedures in use at 15 state DOTs. Most agencies divide the roadside into discrete management zones. While they ...


Analysis Of Truck Weight Limit Regulations, P. Gayle Marks, Jon Wilcoxson, Bryan Gibson, Chris Van Dyke, Jennifer Walton, Doug Kreis Jun 2021

Analysis Of Truck Weight Limit Regulations, P. Gayle Marks, Jon Wilcoxson, Bryan Gibson, Chris Van Dyke, Jennifer Walton, Doug Kreis

Kentucky Transportation Center Research Report

In the United States vehicle weight limits are set by laws and regulations enacted at the state and federal levels. On interstates the maximum allowable gross vehicle weight is 80,000 lbs. States use different rules for permitting overdimensional and overweight (OD/OW) vehicles, and most have carve outs that exempt specific commodities from standard weight limits. This results in a complex legal and regulatory landscape that enforcement personnel can find difficult to negotiate. This report discusses strategies that can be adopted in the state of Kentucky to improve enforcement and mitigate infrastructure damage caused by OD/OW loads. After ...


Evaluation Of The Kentucky Transportation Cabinet’S Maintenance Rating Program, Bryan Gibson, Rachel Catchings, Vinh Dao, Doug Kreis Jun 2021

Evaluation Of The Kentucky Transportation Cabinet’S Maintenance Rating Program, Bryan Gibson, Rachel Catchings, Vinh Dao, Doug Kreis

Kentucky Transportation Center Research Report

The Kentucky Transportation Cabinet (KYTC) relies on its Maintenance Rating Program (MRP) to systematically measure conditions on state-owned roads and rights of way. Every year, the Cabinet evaluates 300-400 road segments in each of its highway districts. Segments receive aggregate scores ranging from 0 to 100, with the target score being 80. This report appraises the MRP and discusses potential strategies for its improvement. Compared to asset management programs established at other state transportation agencies, KYTC’s performs quite well. Between 1999 and 2019, MRP data show that scores improved across all road types. In 2011, the average score for ...


Updating Congestion Performance Measures For Shift 2022, Mei Chen, Xu Zhang, Eugene Antwi Boasiako, Fahmida Rahman Jun 2021

Updating Congestion Performance Measures For Shift 2022, Mei Chen, Xu Zhang, Eugene Antwi Boasiako, Fahmida Rahman

Kentucky Transportation Center Research Report

Executive Summary

The Kentucky Transportation Cabinet (KYTC) has adopted a data-driven decision-making process to allocate funds for highway improvement projects. This process — Strategic Highway Investment Formula for Tomorrow (SHIFT) — requires that candidate projects be scored on five critical metrics: safety, asset management, congestion, economic growth, and benefit/cost analysis. The congestion metric is vehicle hours of delay (VHD), which was first developed for the SHIFT 2020 cycle (1). For SHIFT 2022, VHD is estimated using probe speed data acquired for 166,527 directional miles of Kentucky highways.

This report summarizes analyses performed using 2018-2019 HERE speed data, and their use ...


Project Management Research Support, Bryan Gibson, Jeff Jasper, Robin Baskette, Christopher Van Dyke, Doug Kreis May 2021

Project Management Research Support, Bryan Gibson, Jeff Jasper, Robin Baskette, Christopher Van Dyke, Doug Kreis

Kentucky Transportation Center Research Report

Like many state transportation agencies, the Kentucky Transportation Cabinet (KYTC) faces unprecedented challenges related to project development and management. Staff losses due to attrition and retirements have resulted in the loss of institutional knowledge. Early- to mid-career project managers (PMs) shoulder more responsibilities than ever while being expected to deliver over 600 successful projects each year. To improve the efficiency of project management, PMs must be able to access effective project management concepts, tools, and strategies which are field validated. Recognizing the importance of strengthening its project management capabilities, the Cabinet asked the Kentucky Transportation Center (KTC) to provide ongoing ...


Initial Project Estimates For Design, Right Of Way, Utilities, And Construction, Christopher Van Dyke, Bryan Gibson, Jeff Jasper, Bob Lewis, Doug Kreis Mar 2021

Initial Project Estimates For Design, Right Of Way, Utilities, And Construction, Christopher Van Dyke, Bryan Gibson, Jeff Jasper, Bob Lewis, Doug Kreis

Kentucky Transportation Center Research Report

Estimating the cost of highway construction projects is among the more challenging tasks state transportation agencies routinely deal with. Developing accurate estimates is a particularly fraught exercise during the planning and scoping phases, when projects have not been thoroughly defined and information on specifics is in short supply. While the Kentucky Transportation Cabinet (KYTC) has used several methodologies to generate initial cost estimates for design, right of way, utilities, and construction (DRUC), approaches vary between the agency’s districts. This report proposes a framework for estimating DRUC-related expenses that can be adopted throughout the state. Kentucky Transportation Center (KTC) researchers ...


Non-Nuclear Methods For Compaction Control Of Unbound Soil And Granular Layers, Brad Rister, Charlie Sun, Kean H. Ashurst Jr., Tim Jones, Christopher Van Dyke Mar 2021

Non-Nuclear Methods For Compaction Control Of Unbound Soil And Granular Layers, Brad Rister, Charlie Sun, Kean H. Ashurst Jr., Tim Jones, Christopher Van Dyke

Kentucky Transportation Center Research Report

In highway construction, the nuclear density gauge (NDG) is the industry standard for measuring soil density and moisture. They are widely used at state transportation agencies, however, because of their reliance on radiation, NDGs are expensive to maintain and have unique storage requirements. Operators must also earn specialized certifications and adhere to rigorous safety protocols. Equipment manufacturers have developed several non-nuclear density gauges which are more user friendly, however, their accuracy has sometimes not equaled NDGs. This comparative study evaluated the performance of the eGauge (a relatively new device) to NDGs. Over 100 soil density and moisture measurements were collected ...


Evaluation Of Orange Pavement Striping For Use In Work Zones, Erin Lammers, William Staats, Ken Agent Feb 2021

Evaluation Of Orange Pavement Striping For Use In Work Zones, Erin Lammers, William Staats, Ken Agent

Kentucky Transportation Center Research Report

Interstate widening projects are commonplace in Kentucky, and safety is of primary concern within the project work zone. Past experience with long work zones revealed two critical safety issues: driver confusion due to unclear pavement markings and a lack of continuous work zone signage for motorists indicating they are still within a work zone. This concern is heightened in transition and taper areas. Highly visible markings in an alternative color other than standard yellow or white might better distinguish the proper travel path for motorists and prevent drivers from returning to normal driving behavior and speeds once they get through ...


Fiscal Year 2019 Fhwa-536 Report For The Kentucky Transportation Cabinet, Doug Kreis, Candice Wallace, Bryan Gibson, Sarah Mccormack Feb 2021

Fiscal Year 2019 Fhwa-536 Report For The Kentucky Transportation Cabinet, Doug Kreis, Candice Wallace, Bryan Gibson, Sarah Mccormack

Kentucky Transportation Center Research Report

The Federal Highway Administration (FHWA) requires state transportation agencies to submit a biennial report on local highway finances. The purpose of these reports is to provide FHWA with the data it needs to capture the financing of highway activities at the local level. Based on this information, it can identify trends in revenue, expenditures, investments, and program development, and in turn make decisions about future investments. The report, FHWA-536, asks agencies to report on four areas of local highway finance: 1) disposition of highway-user revenues; 2) revenues used for roads and streets identified by source and funding type; 3) road ...


Commercial Driver’S License Prosecution, Adjudication, And Data Transmission, Andrew Martin, Jeeyen Koo, Jennifer Walton Feb 2021

Commercial Driver’S License Prosecution, Adjudication, And Data Transmission, Andrew Martin, Jeeyen Koo, Jennifer Walton

Kentucky Transportation Center Research Report

The Kentucky Transportation Center research team examined law enforcement and adjudication of traffic offenses committed by commercial driver’s license holders. The objectives were to identify states that would provide the data, collect information about their court systems, analyze enforcement and/or adjudication data, and make some general observations about trends. Many state agencies were not able to provide their traffic offense data and therefore, the team focused primarily on data from Kentucky and Washington State.

The study focused on enforcement trends and adjudication of safety-related offenses. Overall, conviction rates remain higher than dismissal and amended rates. In recent years ...


Development, Implementation, And Tracking Of Preventative Safety Metrics, Zamaan Al-Shabbani, Ashtarout Ammar, Hala Nassereddine, Gabriel B. Dadi Feb 2021

Development, Implementation, And Tracking Of Preventative Safety Metrics, Zamaan Al-Shabbani, Ashtarout Ammar, Hala Nassereddine, Gabriel B. Dadi

Kentucky Transportation Center Research Report

What gets measured, gets improved. With respect to the safety and health of Kentucky Transportation Cabinet (KYTC) employees, the primary metric used has been the OSHA recordable incident rate. This incident rate measures how often a Cabinet employee sustains an injury that demands more than basic first aid. This metric is important for understanding injury frequencies, but it does not assist with management of the safety, health, and overall well-being of KYTC personnel. Based on a review of leading safety indicators adopted by various industries, this study devised a comprehensive list of safety metrics the Cabinet will benefit from tracking ...


2020 Kentucky Transportation Cabinet Maintenance Customer Survey, Bryan Gibson, Katherine Connair, Chris Van Dyke, Clark Graves, Doug Kreis Jan 2021

2020 Kentucky Transportation Cabinet Maintenance Customer Survey, Bryan Gibson, Katherine Connair, Chris Van Dyke, Clark Graves, Doug Kreis

Kentucky Transportation Center Research Report

The Kentucky Transportation Cabinet (KYTC) periodically surveys drivers to understand their perceptions of the agency’s maintenance activities. In 2020, Quadratics in conjunction with the Kentucky Transportation Center surveyed 2,400 licensed drivers throughout the state to gauge their perceptions of highway maintenance, identify areas of strength and weakness, and discern how drivers obtain information on traffic and weather conditions. Survey participants answered questions about five areas of highway maintenance — roadside features, pavement surfaces, shoulders, drainage, and signs/markings. Drivers reported being most satisfied with the maintenance of signs, guardrail, and striping. Pavement surfaces, potholes, and overall appearance garnered the ...


Analysis Of Traffic Crash Data In Kentucky 2015-2019, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Michael A. Fields, William Nicholas Staats Oct 2020

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 Oct 2020

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.