Resource Type: Books, Reports, Papers, and Research Articles
Congestion can restrict access to construction activities both on and close to a freeway, reducing construction efficiency, especially by delaying the delivery of materials. Although previous studies …MoreTraffic Flow
Exploring Traffic End-of-Queue in a Temporal Spatial Diagram and Applications for Work Zone Safety Analysis (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Vehicle queue presence and the location of the end-of-queue as a result of work zones and incidents is important for traffic management and can be acquired from inspecting each vehicle's actual trajec…MoreTraffic Capacity, Speed, and Queue-Discharge Rate of Indiana’s Four-Lane Freeway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In addition to traffic capacity, vehicle speeds and queue-discharge rates at work zones are essential in assessment of work zone traffic delays and user costs. The traffic flow characteristics of free…MoreINDOT Adjusts Traffic Lights to Ease Gridlock in Downtown Indy Because of I-65 Construction (Publication)
Resource Type: News and Other Non-research Articles
The I-65 construction has caused a traffic gridlock in downtown Indianapolis. Frustrated commuters turned to Call 6 for help and Call 6 Investigates took their concerns to the city and the state. …MoreIntelligent Transportation Systems in Work Zones – A Case Study: Dynamic Lane Merge System Reducing Aggressive Driving and Optimizing Throughput at Work Zone Merges in Michigan (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This case study is one in a series of documents that examines the use of Intelligent Transportation Systems (ITS) in work zones. More information on applications of ITS in work zones is available in t…MoreTraffic Flow Characteristics of the “Late Merge” Work Zone Control Strategy (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Conventional traffic control plans such as the one used in Nebraska ( NDOR Merge) for lane closures of rural Interstate highways normally work well as long as congestion does not develop. However, whe…MoreIntegration of Real-Time Air Pollution Parameters into the Decision Making Process Regarding Highway Construction Work Zone Traffic Flow (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The Midac Fourier Transform Infrared air monitoring system was used to measure real-time vehicular exhaust emission concentrations of carbon monoxide (CO) and hydrocarbons (HCs) during the Purdue Vehi…MoreUnderstanding the Impacts of Work Zone Activities on Traffic Flow Characteristics (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
What effect does work activity have on traffic conditions in a work zone? This question has still not been answered satisfactorily in practice. Without knowing the true effect a work activity has on t…MoreEffects of Short-Term Lane Closures on the Traffic Flow of Freeways (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
One of the main causes of congestion on freeways are lane closures due to short-term construction works or accidents. To avoid congestion due to these events, this study aims at analyzing traffic flow…MoreFlow Characteristics at Freeway Work Zones and Increased Deterrent Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Traffic-flow characteristics were studied at two work zones on suburban freeways and at a third freeway site where a police patrol car, easily noticed by drivers, was parked on the right shoulder. The…MoreSimulation and Evaluation of Speed and Lane-Changing Advisory of CAVS at Work Zones in Heterogeneous Traffic Flow (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Emerging connected autonomous vehicle (CAV) technologies provide an opportunity to the vehicle motion control to improve the traffic performance. This study simulated and evaluated the CAV-based speed…MoreMissouri Work Zone Capacity: Results of Field Data Analysis (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This report presents the results of work zone field data analyzed on interstate highways in Missouri to determine the mean breakdown and queue-discharge flow rates as measures of capacity. Several day…MoreModel and Simulation of the Heterogeneous Traffic Flow of the Urban Signalized Intersection With an Island Work Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones exist widely in cities of many countries and have a significant negative impact on city traffic. The majority of the existing studies only focused on freeway work zones, while the work zone…MoreResearch on the Relationship Between Dynamic Message Sign Control Strategies and Driving Safety in Freeway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Several studies have researched the effect of dynamic message signs (DMSs) on the driving safety in work zones. However, only a few studies have examined the design of DMS control strategies in work z…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…MoreTraffic Flow Modeling of Diverse Work Zone Activities (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
What effect does work activity type have on traffic conditions in a work zone? This question has still not been answered satisfactorily in practice. Without knowing the true effect a work activity has…MoreLighted Guidance Devices: Intelligent Work Zone Traffic Control (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Annually, thousands of highway workers risk serious injury and death from drivers who enter work zones too fast or accelerate after entering the zone and then, because of their excess speed relative t…MoreImpact Assessment of Short-Term Work Zones on Intersection Capacity in New York City (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
New York City infrastructure is one of the oldest transportation infrastructures in the United States. Local street construction and short-term work zones are almost continuously planned events that a…MoreAn Improved Cellular Automaton Model for Work Zone Traffic Simulation Considering Realistic Driving Behavior (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Traffic efficiency and safety in work zone are major concerns for traffic engineers, highway agencies and road users. Microscopic traffic simulation is an efficient method to study work zone traffic a…MoreModel and Simulation of the Traffic of the Urban Signalized Intersection with Island Work Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones exist widely in cities of many countries and have a significant negative impact on city traffic; however, the majority of existing studies focused on freeway work zones, work zones on urban…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 …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…MoreModeling the Traffic Flow of the Urban Signalized Intersection With a 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 significant negative impact on traffic. Few studies have focused on modeling the traffic flow of the work zone on the urban arterial…MoreModeling Speed-Flow Relationship and Merging Behavior in Work Zone Merging Areas (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper aims to investigate the speed-flow relationship and drivers' merging behavior in work zone merging areas. It first proposes lane-based speed-flow models, incorporating traffic conflicts amo…MoreThe Role That Connected and Automated Vehicles Can Play in Re-Organizing Traffic Flow: Work Zones and Emergency Services (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The extensive progresses in computer science and communication technology in recent decades facilitate the development of the connected and automated vehicles (CAV). Since the emergence of the conce…MoreBehavior Study of Merge Practices for Drivers at Work Zone Closures (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The purpose of this project was to determine which driver behaviors result in the greatest reduction of capacity with work zone lane closures. Traffic and safety experts believe that driver behaviors,…More