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Safety Through Disruption (Safe-D) University Transportation Center (UTC)
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  • Investigation of Design Speed Characteristics on Freeway Ramps using SHRP2 Naturalistic Driving Data
    Investigation of Design Speed Characteristics on Freeway Ramps using SHRP2 Naturalistic Driving Data
    :
    Brewer, Marcus A. ;
    Stibbe, Jayson
    2019-03-01
    :
    Freeway ramp design guidance has existed in the United States for many decades, coinciding with the advent of the nation’s freeway network and the I...
  • Characteristics Based Heuristics to Select a Logical Distribution between the PoissonGamma and the PoissonLognormal for Crash Data Modelling
    Characteristics Based Heuristics to Select a Logical Distribution between the Poisson-Gamma and the Poisson-Lognormal for Crash Data Modelling
    :
    Shirazi, Mohammadali ;
    Lord, Dominique
    2019-11-01
    :
    Several studies have shown that the Poisson-lognormal (PLN) offers a better alternative compared to the Poisson-gamma (PG) when data are skewed while ...
  • Estimating Bicycle Demand in the Austin Texas Area Role of a Bikeability Index
    Estimating Bicycle Demand in the Austin, Texas Area: Role of a Bikeability Index
    :
    Munira, Sirajum ;
    Sener, Ipek N.
    2021-01-01
    :
    This study contributes to research and practice by demonstrating the use of a composite measure, a bikeability index, to facilitate the use of and imp...
  • OnRoad Evaluation of Invehicle Interface Characteristics and Their Effects on Performance of Visual Detection on the Road and Manual Entry
    On-Road Evaluation of In-vehicle Interface Characteristics and Their Effects on Performance of Visual Detection on the Road and Manual Entry
    :
    Suh, Youngbo ;
    Ferris, Thomas K.
    2018-07-02
    :
    Objective: This study investigated the impact of in-vehicle interface characteristics on drivers’ multitasking performance measures relating to visu...
  • A Geographically Weighted Regression Model to Examine the Spatial Variation of the Socioeconomic and LandUse Factors Associated with Strava Bike Activity in Austin Texas
    A Geographically Weighted Regression Model to Examine the Spatial Variation of the Socioeconomic and Land-Use Factors Associated with Strava Bike Activity in Austin, Texas
    :
    Munira, Sirajum ;
    Sener, Ipek N.
    2020-10-01
    :
    Despite evidence showing the spatial nonstationarity of the determinants of bike activity, very few studies have addressed the phenomena, probably due...
  • Identifying HighRisk Intersections for Walking and Bicycling Using Multiple Data Sources in the City of San Diego
    Identifying High-Risk Intersections for Walking and Bicycling Using Multiple Data Sources in the City of San Diego
    :
    Hasani, Mahdie ;
    Jahangiri, Arash
    2019-06-01
    :
    Over the last decade, demand for active transportation modes such as walking and bicycling has increased. While it is desirable to provide high levels...
  • The Relationship between the Driver Behavior Questionnaire Sensation Seeking Scale and Recorded Crashes A Brief Comment on Martinussen et al 2017 and New Data from SHRP2
    The Relationship between the Driver Behavior Questionnaire, Sensation Seeking Scale, and Recorded Crashes: A Brief Comment on Martinussen et al. (2017) and New Data from SHRP2
    :
    de Winter, J C F ;
    Dreger, Felix A
    2018-09-01
    :
    The authors provide a brief comment on the work of Martinussen et al. (2017), who studied the relationships between self-reported driving behavior, re...
  • Derivation of the Empirical Bayesian Method for the Negative BinomialLindley Generalized Linear Model With Application in Traffic Safety
    Derivation of the Empirical Bayesian Method for the Negative Binomial-Lindley Generalized Linear Model With Application in Traffic Safety
    :
    Khodadadi, Ali ;
    Tsapakis, Ioannis
    2022-01-01
    :
    The expected crash frequency is the long-term average crash count for a specific site. It is extensively used to systematically evaluate the crash ris...
  • A Methodology to Design Heuristics for Model Selection Based on the Characteristics of Data Application to Investigate When the Negative Binomial Lindley NBL is Preferred Over the Negative Binomial NB
    A Methodology to Design Heuristics for Model Selection Based on the Characteristics of Data: Application to Investigate When the Negative Binomial Lindley (NB-L) is Preferred Over the Negative Binomial (NB)
    :
    Shirazi, Mohammadali ;
    Dhavala, Soma Sekhar
    2017-05-24
    :
    Safety analysts usually use post-modeling methods, such as the Goodness-of-Fit statistics or the Likelihood Ratio Test, to decide between two or more ...
  • Reference Test System for Machine Vision Used for ADAS Functions
    Reference Test System for Machine Vision Used for ADAS Functions
    :
    Nayak, Abhishek ;
    Pike, Adam
    2020-01-01
    :
    Advanced Driver Assistance Systems (ADAS) like Lane Departure Warning (LDW) and Lane Keep Assist (LKA) have been available for several years now but h...
  • Evaluation of the Injury Risks of Truck Occupants Involved in a Crash as a Result of Errant Truck Platoons
    Evaluation of the Injury Risks of Truck Occupants Involved in a Crash as a Result of Errant Truck Platoons
    :
    Jin, Hanxiang ;
    Sharma, Roshan
    2020-03-11
    :
    Truck platooning comprises a number of trucks equipped with automated lateral and longitudinal vehicle control technology, which allows them to move i...
  • Data Fusion for Nonmotorized Safety Analysis
    Data Fusion for Nonmotorized Safety Analysis
    :
    Sener, Ipek N. ;
    Munira, Silvy
    2021-08-01
    :
    This project explored an emerging research territory, the fusion of nonmotorized traffic data for estimating reliable and robust exposure measures. Fu...
  • Data Fusion for Nonmotorized Safety Analysis supporting datasets
    Data Fusion for Nonmotorized Safety Analysis [supporting datasets]
    Dataset Icon
    :
    Sener, Ipek N. ;
    Munira, Silvy
    2021-10-06
    :
    This project explored an emerging research territory, the fusion of nonmotorized traffic data for estimating reliable and robust exposure measures. Fu...
  • Exploring the Influence of Carbon Footprint and Health Benefits in Parking Location Decisions
    Exploring the Influence of Carbon Footprint and Health Benefits in Parking Location Decisions
    :
    Cheu, Ruey Long ;
    Ruiz, Emiliano
    2021-05-31
    :
    The objective of this project is to answer the Research Question: If the information on carbon footprint and health benefits are available, what are t...
  • Investigation on the DriverVictim Pairs in Pedestrian and Bicyclist Crashes by Latent Class 1 Clustering and Random Forest Algorithm
    Investigation on the Driver-Victim Pairs in Pedestrian and Bicyclist Crashes by Latent Class 1 Clustering and Random Forest Algorithm
    :
    Zhu, Chunwu ;
    Brown, Charles T
    2023-01-01
    :
    Pedestrians and bicyclists from marginalized and underserved populations experienced disproportionate fatalities and injury rates due to traffic crash...
  • Toward Computational Simulations of Behavior During Automated Driving Takeovers A Review of the Empirical and Modeling Literatures
    Toward Computational Simulations of Behavior During Automated Driving Takeovers: A Review of the Empirical and Modeling Literatures
    :
    McDonald, Anthony D ;
    Alambeigi, Hananeh
    2019-06-01
    :
    Objective: This article provides a review of empirical studies of automated vehicle takeovers and driver modeling to identify influential factors and ...
  • State Estimation and Motion Prediction of Vehicles and Vulnerable Road Users for Cooperative Autonomous Driving A Survey
    State Estimation and Motion Prediction of Vehicles and Vulnerable Road Users for Cooperative Autonomous Driving: A Survey
    :
    Ghorai, Prasenjit ;
    Eskandarian, Azim
    2022-04-13
    :
    The recent progress in autonomous vehicle research and development has led to increasingly widespread testing of fully autonomous vehicles on public r...
  • Implications of a Narrow Automated VehicleExclusive Lane on Interstate 15 Express Lanes
    Implications of a Narrow Automated Vehicle-Exclusive Lane on Interstate 15 Express Lanes
    :
    Machiani, Sahar Ghanipoor ;
    Ahmadi, Alidad
    2021-01-01
    :
    The main objective of this study is to evaluate the safety and operational impacts of an innovative infrastructure solution for safe and efficient int...