Resource Type: Books, Reports, Papers, and Research Articles
Work zone crashes are still on the rise due to the aging of US roads and the increase in traffic demand. Investigation of crash characteristics and determining contributing factors in work zones is on…MoreMathematical Models
Theory 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…MoreThe STARs Evaluation Tool: Optimising Network Performance, Road Worker Safety and Road User Safety During Roadworks and Maintenance (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The aim of the Scoring Traffic at Roadworks (STARs) project is to optimise network availability, road worker safety and road user safety during roadworks. The objective was to develop a methodology to…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 …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…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…MoreUser Cost Model of Highway Work Zone During Discrete Periods Under Influence of Uncertain Factors (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The traffic situation of highway work zone during discrete periods was analyzed. By dispersing the work periods, the relationships between the capacities of work zones and user costs during different …MoreAn Immersive Virtual Learning Environment for Worker-Robot Collaboration on Construction Sites (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper presents a Virtual Learning Environment (VLE) that simulates the collaboration between a construction robot and a construction worker in order to support training in worker-robot teamwork o…MoreEvaluating the Effectiveness of Traffic Diversion and Managed Lanes on Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Temporary work zones (TWZs) have become the second largest contributor to the non-recurring delay of U.S. highways, causing nearly 24 % of all non-recurring delay and 10 % of overall delay. Efficient …MoreA New Analytic Neuro-Fuzzy Model For Work Zone Capacity Estimation (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Implementation of regular maintenance and rehabilitation to roads often requires establishment of work zones, which usually result in closing of one or more lanes available for traffic. Closing of tra…MoreMachine Learning Approach to Forecast Work Zone Mobility Using Probe Vehicle Data (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The aim of deploying intelligent transportation systems (ITS) is often to help engineers and operators identify traffic congestion. The future of ITS-based traffic management is the prediction of traf…MoreModel Development for Use of Portable Traffic Signals in Conjunction with Pilot Car Operations at Two-Lane, Two-Way Rural Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A portable traffic signal (PTS) system is a traffic control device designed to facilitate the movement of one-way traffic at work zones where there is a temporary lane closure. The 2009 edition of the…MoreCapacity Modeling and Control Optimization for Two-lane Highway Lane Closure Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A two-lane highway lane closure work zone is a unique work zone type due to its traffic impact. As one lane of traffic is blocked, it is necessary to implement a traffic control strategy to effectivel…MoreCapacity Modeling and Control Optimization for a Two-Lane Highway Lane-Closure Work Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A two-lane highway lane closure work zone is a unique work zone type because of its traffic impact. When one lane of traffic is blocked, it is necessary to implement a traffic control strategy to effe…MoreMulticontextual Machine-Learning Approach to Modeling Traffic Impact of Urban Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Impact assessments of highway construction work zones (CWZs) are mandated for all federally funded highway infrastructure improvement projects. However, most existing approaches are ad hoc or project …MoreImproved Support Vector Machine Models for Work Zone Crash Injury Severity Prediction and Analysis (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
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…MoreModeling the Heterogeneous Traffic Flow of the Urban Signalized Intersection with the Straddling Work Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
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…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…MoreTime-Dependent Drivers’ Merging Behavior Model in Work Zone Merging Areas (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study investigates the drivers’ merging behavior in work zone merging areas during the entire merging implementation period from the time of starting a merging maneuver to that of completing th…MoreWork Zone Queue Length and Delay Methodology (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Development of reliable strategies to overcome adverse mobility impacts of highway work zones requires accurate computation of delay and queues in work zones. This paper presents a methodology for qua…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 …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…MoreA Probit-Decision Tree Approach to Analyze Effects of Adverse Weather Conditions on Work Zone Crash Severity Using Second Strategic Highway Research Program Roadway Information Dataset (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Identifying risk factors for road traffic injuries is one of the main priorities of transportation agencies. More than 12,000 fatal work zone crashes were reported between 2000 and 2013. In spite of r…MoreMicrosimulation of Freeway Work Zones to Assess Flow and Capacity (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This research applied microscopic traffic simulation to freeway work zones to further understand the relationship between traffic variables and capacity. There are two distinct forms of capacity depen…MoreWhat Role Do Precrash Driver Actions Play in Work Zone Crashes?: Application of Hierarchical Models to Crash Data (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Highway infrastructure requires periodic maintenance, reconstruction, and rehabilitation. As a result, highway users have to deal with work zone activities such as lane closures and lane shifts or cro…MoreSafety Models for Rural Freeway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This research is a part of a project aimed at studying the performance and efficacy of the Indiana Lane Merge System (ILMS) in work zone locations. The crash prediction models presented here are impor…More