Engineering Commons^™

Ccrpc Bicycle Count Data Analysis And Count Program Design Strategies, Gregory Rowangould, Eliana Fox, Rose O'Brien, Julia Clarke

University of Vermont Transportation Research Center

In 2017, the Chittenden County Regional Planning Commission (CCRPC) completed the most recent update of the region’s Active Transportation Plan (ATP) with the goal of creating “a safe, comfortable, and connected regional network of pedestrian and bicycle routes that appeal to all ages and abilities”. Developing a “robust” bicycle count program was one of the key non-infrastructure recommendations in the ATP (CCRPC, 2017). The UVM Transportation Research Center (“TRC”) was contracted to evaluate current bicycle data collection efforts in the region, identify gaps and limitations and make recommendations on how to develop a comprehensive bicycle count program that could better …

Integrating Crash, Hospital, And Roadway Data To Investigate The Effect Of Cable Median Barriers On Injury Severity, Michael D. Singleton, Eric R. Green, William Nicholas Staats, I-Chen Chen

Kentucky Transportation Center Research Report

Executive Summary

• In median-involved crashes, the odds of a police-reported injury were estimated to be 42% lower on road segments with a cable median barrier (CMB) than on road segments with a concrete median barrier, and the difference was statistically significant [odds ratio 0.58, 95% confidence interval (0.43, 0.78)].
• In median-involved crashes, the odds of having an injury severity score of 8 or greater were estimated to be 34% higher on road segments with a CMB than on road segments with a concrete median barrier; however, the difference was not statistically significant [odds ratio 1.34, 95% confidence interval (0.67, 2.66). …

Coordinating The Use And Location Of Weigh-In-Motion Technology For Kentucky, Andrew Martin, Valerie J. Keathley, Jerry Kissick, Jennifer R. Walton

Kentucky Transportation Center Research Report

Several agencies in the Kentucky Transportation Cabinet make use of data collected by weigh-in-motion (WIM) scales throughout the state. These scales are used to collect traffic counts, weigh vehicles, weigh individual axles, determine vehicle length, classify vehicles, and determine speed. The data is primarily used for planning, law enforcement related to commercial vehicles, and pavement design. This study details the applications of WIM data, and reviews existing literature on how WIM data is used and shared. The study provides survey feedback from other states, specifically about how they use WIM data. It details competing WIM technologies currently on the market, …

Annual Update Of Data For Estimating Esal, Clark Graves, Jerry G. Pigman, Brad Rister, David Cain, Neil Tollner

Kentucky Transportation Center Research Report

No abstract provided.

Annual Update Of Data For Estimating Esals, Jerry G. Pigman, Clark Graves, Brad Rister, David Cain, Neil Tollner

Kentucky Transportation Center Research Report

A revised procedure for estimating equivalent single axleloads (ESAL’s) was developed in 1985. This procedure used weight, classification, and traffic volume data collected by the Transportation Cabinet’s Division of Planning. The procedure was developed and documented as Research Report UKTRP-85-30, and was titled “Estimation of Equivalent Axleloads”. Since the revised procedure was adopted, there have been several changes; the most recent being documented as Report KTC-95-7 titled “Equivalent Single Axleload Computer Program Enhancements”. Results documented in Report KTC-95-7 included improvements in the processing of ESAL data by aggregation of the functional classes to increase the accuracy of the estimates within …

Analysis Of Traffic Crash Data In Kentucky (1999 - 2003), Eric R. Green, Kenneth R. Agent, Jerry G. Pigman, Monica L. Barrett

Kentucky Transportation Center Research Report

This report documents an analysis of traffic crash data in Kentucky for the years of 1999 through 2003. A primary objective of this study was to determine average crash statistics for Kentucky highways. Average and critical numbers and rates of crashes were calculated for various types of highways in rural and urban areas. These data can be used in Kentucky's procedure to identify locations that have abnormal rates or numbers of crashes.

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 …