Resource Type: Books, Reports, Papers, and Research Articles
Since variations in exogenous factors could cause unpredictable fluctuations/variability of the speed–flow relationship, the aim of this study was to develop probabilistic speed–flow relationships…MoreWork Zone Capacity
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…MoreOhio DOT, Nexar Launch Work Zone Safety Pilot Project (Publication)
Resource Type: News and Other Non-research Articles
DriveOhio, an initiative of the Ohio Department of Transportation, is partnering with Nexar to test its CityStream roadway monitoring technology to improve highway work zone safety. This pilot project…MoreCalibration of Vissim Models for Rural Freeway Lane Closures: Novel Approach to the Modification of Key Parameters (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
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…MoreStudy on the Capacity of Urban Road Construction Section Under Mixed Traffic Environment (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Based on the analysis of the calculation model of the capacity of urban road construction section, a calculation optimization model considering the influence of non-motor vehicle factors on the capaci…MoreWork Zone Traffic Simulation Using Cellular Automata (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The focus of the present work is to develop a simulation model using cellular automata for work zone traffic containing homogeneous traffic condition. Work zone is created by blocking some of the cell…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 …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…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…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…MoreWork Zone Free Flow Speed Calculation Issues in HCM 2016 (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Capacity and free flow speed (FFS) are the two most important traffic characteristics that determine traffic flow conditions in work zones. Work zone capacity and FFS are also important because they d…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…MoreUnderstanding Traffic Flow Characteristics and Capacity of Linear Multi-work Zones on the Urban Arterial Road (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
It is quite common that several construction projects are implemented synchronously on the urban arterial roads of many large cities in China. Unfortunately, despite the popularity and prevalence of t…MoreA Smart Highway Work Zone Merge System Enabled by Connected Vehicles (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Typical traffic control and operations at work zones usually are not very effective in mitigating the work zone bottleneck. A major reason is that the common early merge behaviors limits utilizing the…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…MoreEstimation of Saturation Headway in Work Zones on Urban Streets (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones and lane closures on urban arterials can cause significant disruptions to the traveling public, and methods are increasingly needed to estimate the reductions to saturation flow rates that …MoreAnalysis on Work Zone Characteristics in South Korean Expressways Using Text Mining Technique (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The study proposes the association between work zone types and work zone lane closure types used in the construction of South Korean expressways through the use of the text mining and association anal…MoreDetermining Work Zone Lane Capacities Along Multilane Signalized Corridors (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The existing motor vehicle travel lanes are either narrowed to a single lane or diverted around the work zone, which may lead to disruptions in traffic flow due to reduced capacity. The capacity of th…MoreWork Zone Traffic Management Analysis Using Analytical Methods (Training)
The course provides hands-on training on basic analytical methods (sketch planning methods) to compute work zone performance measures (WZPM). The WZPM includes the following factors: capacity, speed, … More
Effects 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…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…MoreImproving Traffic Flow at Long-term Roadworks (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Long-term roadworks on highways are vital as part of roadway and bridge renovations. They generate bottlenecks and can consequently cause congestion and accidents. If the number of lanes is reduced, t…MoreCapacity of Freeway Work Zones in Germany (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones considerably influence the traffic flow quality on freeways. In work zones, the capacity can be significantly reduced due to narrower lanes, a reduced number of traffic lanes, and unfavorab…MoreTraffic Flow at a Freeway Work Zone with Reversible Median Lane (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones on freeways usually affect the quality of service for road users. Aiming to reduce traffic flow disruptions to a minimum, Hessen Mobil — Road and Traffic Management installed an innovativ…More