Resource Type: Books, Reports, Papers, and Research Articles
The majority of construction projects, especially large ones, experience time delays, cost overruns, productivity loss, and/or accidents. This is particularly so in case of congested and disorganized …MoreMathematical Models
How 4D Visualization and Simulation Enhances Work Zone Safety and Traffic Mobility (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
There are multiple impacts on road users and construction workers due to highway construction activities that vary with time and location. A Four Dimensional (4D) visualization of construction work zo…MoreComplementary Parametric Probit Regression and Nonparametric Classification Tree Modeling Approaches to Analyze Factors Affecting Severity of Work Zone Weather-Related Crashes (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Identifying risk factors for road traffic injuries can be considered one of the main priorities of transportation agencies. More than 12,000 fatal work zone crashes were reported between 2000 and 2013…MorePractical Road-Resistance Functions for Expressway Work Zones in Occupied Lane Conditions (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In order to create a practical road-resistance function for work zones under different lane occupation conditions, the expected speed of vehicles was calibrated in the work zone simulation model based…MoreRisk Factors in Work Zone Safety Events: A Naturalistic Driving Study Analysis (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Identification of crash risk factors and enhancing safety at work zones is a major priority for transportation agencies. There is a critical need for collecting comprehensive data related to work zone…MoreEstimating Uncertainty of Work Zone Capacity using Neural Network Models (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study aims to develop a neural network model to predict work zone capacity including various uncertainties stemming from traffic and operational conditions. The neural network model is formulated…MoreVariable Speed Limit for Freeway Work Zone with Capacity Drop Using Discrete-Time Sliding Mode Control (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Freeway work zone with lane closure has a direct negative impact on travel time, safety, and environmental sustainability. The capacity drop at the onset of the congestion can also further reduce the …MoreExploring Factors Contributing to Injury Severity at Work Zones Considering Adverse Weather Conditions (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Despite recent efforts to improve work zone safety, the frequency and severity of crashes at work zones are still considerably high. The effect of work zones on traffic safety can be exacerbated by ad…MoreEnhancing Action Recognition of Construction Workers Using Data-Driven Scene Parsing (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Vision-based action recognition of construction workers has attracted increasing attention for its diverse applications. Though state-of-the-art performances have been achieved using spatial-temporal …MoreDesign and Implementation of Vision Based Safety Detection Algorithm for Personnel in Construction Site (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The failure of construction workers to wear safety equipment as required is an important cause of safety accidents. In fortunate cases people are injured and severe cases can cause death. In order to …MoreOptimizing Work-Zone Schedule with Floating Car Data Considering Traffic Diversion and Managed Lanes (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones have become the second largest contributor to the nonrecurring delay disruptions of traffic on US highways. The development of a sound model to minimize the total cost (i.e., road user…MorePredicting Freeway Work Zone Capacity Distribution Based on Logistic Speed-Density Models (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Speed-volume-density relationship and capacity are key elements in modelling traffic operations, designing roadways, and evaluating facility performance. This paper uses a modified five-parameter logi…MoreAnalysis of Work-Zone Crashes Using the Ordered Probit Model with Factor Analysis in Egypt (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work-zones, due to their nature, are predisposed to hazardous situations. This is a consequence of conducting construction work within the vicinity of, or near, vehicular traffic. The exposure to dang…MoreA Comparative Study of Machine Learning Classification for Color-based Safety Vest Detection on Construction-Site Images (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Detecting the safety vests is an important foundation for various applications in safety management and productivity measurement. The fluorescent yellow-green color and fluorescent orange-red color of…MorePredicting Work Zone Collision Probabilities via Clustering: Application in Optimal Deployment of Highway Response Teams (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper proposes a clustering approach to predict the probability of a collision occurring in the proximity of planned road maintenance operations (i.e., work zones). The proposed method is applied…MoreQualitative and Quantitative Risk Analysis of Unmanned Aerial Vehicle Flights over Construction Job Sites (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Unmanned Aerial Vehicles (UAVs) have been used on construction job sites for a variety of purposes for more than a decade. But the risks and hazards of flying UAVs on construction job sites has never …MoreModeling and Predicting Stochastic Merging Behaviors at Freeway On-Ramp Bottlenecks (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Merging behavior is inevitable at on-ramp bottlenecks and is a significant factor in triggering traffic breakdown. In modeling merging behaviors, the gap acceptance theory is generally used. Gap accep…MoreOn the Impact of Connected Automated Vehicles in Freeway Work Zones: A Cooperative Cellular Automata Model Based Approach (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Purpose - Freeway work zones have been traffic bottlenecks that lead to a series of problems, including long travel time, high-speed variation, driver’s dissatisfaction and traffic congestion. This …MoreModeling Framework to Identify an Affected Area for Developing Traffic Management Strategies (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
When a traffic incident occurs, congestion starts to disseminate around the incident location. Considering a suitable area to assess the impact of incidents and develop traffic network prediction mode…MoreDriving Risk Assessment in Work Zones Using Cloud Model (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones are prone to traffic accidents. They are considered as dangerous parts of expressways not only for drivers but also for highway construction workers, as they face a higher risk of traffic a…MoreMerging Vehicles and Lane Speed-Flow Relationship in a Work Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In addition to closed merge lanes as physical bottlenecks of work zones, traffic oscillations caused by merging vehicles at multiple locations could reduce work zone capacity. This study took a stepwi…MoreTime-varying Mixed Logit Model for Vehicle Merging Behavior in Work Zone Merging Areas (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study aims to develop a time-varying mixed logit model for the vehicle merging behavior in work zone merging areas during the merging implementation period from the time of starting a merging man…MoreTheory of Safety Surrogates Using Vehicle Trajectories in Macroscopic and Microscopic Settings: Application to Dynamic Message Signs Controlled Traffic at Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper presents a new mathematical framework for obtaining quantitative safety measure using macroscopic as well as microscopic traffic data. The safety surrogate obtained from the macroscopic dat…MoreCapacity Models for Long-Term and Short-Term Freeway Work Zones in Germany (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The paper presents results from a comprehensive study of work zone capacity on German freeways. A large number of long-time work zones with and without a reduction of the number of lanes as well as sh…MoreMicro-Level Analysis on Traffic Flow Parameters at Work-Zone Road Section Using Vehicular Trajectory Data (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The research work is carried out to examine microscopic and macroscopic traffic parameters at work zone on high speed urban roads. Due to construction of elevated metro rail project over the study sec…MoreValidating the Performance of the FHWA Work Zone Model Version 1.0: A Case Study Along I-91 in Springfield, Massachusetts (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Central to the effective design of work zones is being able to understand how drivers behave as they approach and enter a work zone area. States use simulation tools in modeling freeway work zones to …More