Resource Type: Books, Reports, Papers, and Research Articles
This document is a technical summary of the Federal Highway Administration report, Leveraging Augmented Reality for Highway Construction, which documents current AR technologies and applications focus…MoreMathematical Models
A Comparison of Capacity Estimation Methods for Two-Way Four-Lane Freeway Work Zone Capacity Using Field Data (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zone environments are complex, and adequate capacity estimation methods must consider more factors than regular freeway sections. In order to avoid the undue influences on the traffic capacity ca…MoreCooperative Highway Work Zone Merge Control based on Reinforcement Learning in a Connected and Automated Environment (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Given the aging infrastructure and the anticipated growing number of highway work zones in the United States, it is important to investigate work zone merge control, which is critical for improving wo…MoreImmersive Work Zone Inspection Training Using Virtual Reality (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Can virtual reality tools be used to train engineers that inspect work zones? In this report, we share the findings of a research project that developed an interactive and immersive training platform …MoreCalibration of Vissim Models for Rural Freeway Lane Closures: Novel Approach to the Modification of Key Parameters (Publication)
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The definition of freeway work zone capacity has been a topic of debate for several decades, leaving agencies with limited guidance on predicting the behavior of traffic flow at given volumes fo…MoreDesigning an Interactive Visualization for Road Works Coordination Using Virtual Reality (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Road works highly affect traffic in major cities, therefore coordination is key to avoid congestion on urban streets and highways. Software tools and interactive visualizations giving insight to compl…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 …MoreUpgrading the FHWA Work Zone Model Version 2.0 and Validating its Performance Along I-91 in Springfield, Massachusetts (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Freeway work zones can have significant safety and operational impacts. To mitigate these, planners and engineers rely on accurate simulation tools to assess various work zone design and scheduling al…MoreCo-Presence in a Shared Virtual Environment (SVE): A Case Study of Highway Work Zone Construction (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Given the high rate of motor vehicle fatalities in work zones in the U.S., this study proposes the use of a virtual reality (VR) as a tool for studying safety in construction work zones. This testing …MoreRandom Coefficient Models for Work Zone Headway Distribution (Publication)
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Vehicle headways in work zones are disaggregated into two types in this study—truck-involved (e.g., car-truck) and nontruck-involved (e.g., car-car) headways. Considering the possible effects of veh…MoreProactive System for Real-Time Safety Management In Construction Site (Publication)
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The purpose of this paper is presenting a new advanced hardware/software system, boasting two main features: first it performs real time tracking of workers' routes in construction sites; then it impl…MoreImproved Support Vector Machine Models for Work Zone Crash Injury Severity Prediction and Analysis (Publication)
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Work zones are a high priority issue in the field of road transportation because of their impacts on traffic safety. A better understanding of work zone crashes can help to identify the contributing f…MoreA Macroscopic Traffic Flow Model for the Highway Work Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work Zones widely exist on highways, causing high traffic delay and many accidents. The majority of the existing studies focus on the characteristics of work zones, such as traffic capacity, speed, de…MoreModeling the Heterogeneous Traffic Flow of the Urban Signalized Intersection with the Straddling Work Zone (Publication)
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Work zones widely exist on urban roads in many countries and have a serious impact on traffic. Few studies have focused on modeling the traffic flow of the work zone on the urban arterials, especially…MoreConstruction Site-Layout Optimization Considering Workers’ Behaviors Around Site Obstacles, Using Agent-Based Simulation (Publication)
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 …MoreHow 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)
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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)
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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)
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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)
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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)
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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)
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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…More