Resource Type: Books, Reports, Papers, and Research Articles
Pakistan has a population of over 199 million and total road network of approximately 264,400 kilometers that serve about 16.2 million vehicles of all types. According to WHO estimates, there were app…MoreTraffic Delay
Optimizing 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…MoreToronto Safe Work Zone Pilot Brings Highway Safety Concept to City (Publication)
Resource Type: News and Other Non-research Articles
Highway drivers have become accustomed to bold signs in work zones, advising them about lane reductions and travel delays. The City of Toronto is testing a similar concept as part of its Smart Work Zo…MoreODOT to Impose Stiffer Fines on Contractors After Long Traffic Delay due to Construction on I-480 (Publication)
Resource Type: News and Other Non-research Articles
The failure of contractors in meeting the contract requirements of having all lanes open by 6 am has caused construction-related morning delays for area commuters several times. Ohio Department of T…MoreEffect of Road Construction Projects on Travel Time Reliability (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Road construction projects have a significant effect on the operational performance of the roads (say, freeways) leading to an increase in congestion and delay during the construction period. The oper…MoreModeling Highway Performance Under Various Short-Term Work Zone Configurations (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Federal rules mandate state departments of transportation and metropolitan planning organizations to measure and report on the performance of highways within their jurisdictions. Those rules support a…MoreImpact on Traffic flow Due to Construction on Roadside: A Case Study of Thaltej Gam to Vijay Cross Road (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The historic city Ahmedabad is the largest city in the Indian state of Gujarat. The population of Ahmedabad in 2016 is over 7 million people in the city and approximately 8 million in the urban agglom…MoreOptimization of Work Zone Segments on Urban Roads Using Cellular Automata Model in Mixed Traffic (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Increased delays and reduced speeds in work zones leads to congestion. This can be improved by optimizing the work zone length. The focus of this study is to model work zones using cellular automa…MoreTemporary Traffic Control Strategy Optimization for Urban Freeways (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Temporary traffic control (TTC) strategies have been widely adopted to maintain traffic flow while ensuring TTC costs remain a reasonable portion of construction budgets. As travel demand approaches t…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 …MoreFeasibility of Lane Closures Using Probe Data (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
To develop an adequate traffic operations management and congestion mitigation plan for every roadway maintenance and construction project requiring lane closures, transportation agencies need accurat…MoreEvaluation of Traffic Control Options in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Lane closures for work zones along freeways produce bottlenecks. These bottlenecks are problematic due to loss of capacity and excessive lane changes, which impact the facility performance represented…MoreOptimizing the Planning of Highway Work Zones to Maximize Safety and Mobility (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Highway work zones create potential risks for both traffic and workers in addition to traffic congestion and delays that result in increased road user delay, traffic crashes, and vehicle emissions. Th…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…MoreVariable Speed Limit Control for Delay and Crash Reductions at Freeway Work Zone Area (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Improving operational efficiency and safety on freeway segments has long been recognized as a priority in traffic communities. This study presents a comprehensive variable speed limit (VSL) control mo…MoreUser Costs as One of Main Advantages of Precast Concrete Application in Highway Construction (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Road user cost primarily refer to the monetized components of road (re)construction impacts, such as the user delay costs, vehicle operating costs, crash costs and emission costs. Objective of this pa…MorePredicting Freeway Work Zone Delays and Costs with a Hybrid Machine-Learning Model (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A hybrid machine-learning model, integrating an artificial neural network (ANN) and a support vector machine (SVM) model, is developed to predict spatiotemporal delays, subject to road geometry, numbe…MoreWork Zone Impact Assessment Methods and Applications (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Two work zone impact assessment methods were developed and their applicability was illustrated with data from recent construction projects on the I-35 Central Texas corridor. The first method was deve…MoreAnalysis of Loss of Time Value During Road Maintenance Project (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Lane closure is frequently performed in the execution of the road maintenance project. It has a negative impact on road users such as the loss of vehicle operating costs and the loss of time value. Ne…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
Data-Driven Traffic Impact Assessment Tool for Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Traditionally, traffic impacts of work zones have been assessed using planning software such as Quick Zone, custom spreadsheets, and others. These software programs generate delay, queuing, and other …MoreWork Zone Impact Assessment Methods and Applications (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Two work zone impact assessment methods were developed and their applicability was illustrated using recent construction projects and actual data from the I-35 Central Texas corridor. The first method…MoreArtificial Neural Network Model for Estimating Temporal and Spatial Freeway Work Zone Delay Using Probe-Vehicle Data (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Highway lane closures due to road reconstruction and the resulting work zones have been a major source of nonrecurring congestion on freeways. It is extremely important to calculate the safety and cos…MoreOptimal Trade-Offs between Construction Cost and Traffic Delay for Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Highway work zones often cause traffic congestion, resulting in increased road-user delays and vehicle emissions. These negative impacts of highway work zones can be minimized by a number of mitigatin…MoreDelay and User Cost Estimation for Work Zones on Urban Arterials (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This is the final project report of NCDOT research project 2013-09: Delay and User Cost Estimation for Work Zones on Urban Arterials. The project seeked to develop a methodology for quantifying delay …MoreBalancing the Costs of Mobility Investments in Work Zones: Phase 1 Final Report (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zone safety and mobility continue to be critical transportation concerns in Michigan and elsewhere. Previous research has led to the development of a variety of tools, performance measures and de…More