Assessing Work Zone Traffic Control Options for 3-to-1 Lane Closures

Statistical Analysis of Two-lane Roundabout Data for Traffic Control Decision-Making in an Urban Area

Researches using existing statistics and data collected from the area of study help officials at decision-making, to improve the region's problems, like the problem of the high rate of accidents in the region, despite the low volume of daily service. The uses of roundabouts in many parts of the world have many advantages over intersections, amongst them are increased safety and capacity and red...

Development and Evaluation of the Lane Merge Traffic Control System at Construction Work Zones

Regional Microscopic Simulation Model for Studying Traffic Control Strategies at a Work Zone

Work zones have significant negative impacts resulting from reduced capacity and speed, and increased accidents and delay. Thus, it is important to design a traffic control strategy that has minimum potential impact on the traffic at the work zone and the traffic in its vicinity. In this study, a regional microscopic model is used to evaluate different control strategies at a work zone on inter...

Evaluation of New Simplified Dynamic Lane Merging Systems (SDLMS) for Short-Term Work Zone Lane Closure Configuration

To improve traffic safety and mobility in work zone areas, the Dynamic Lane Merge (DLM) systems, intelligent work zone traffic control systems, have been explored by several states of the U.S.A. The DLM can take two forms; dynamic early merge and dynamic late merge. The DLM systems were designed to advise drivers on definite merging locations. Up to date, there are no studies that contrast both...

Programmatic Examination of Missouri Incentive / Disincentive Contracts for 1 Mitigating Work Zone Traffic Impacts

19 Incentive/disincentive clauses (I/D) are designed to award payments to contractors if they 20 complete work ahead of schedule and to deduct payments if they exceed the completion time. A 21 previously unanswered question is, “Did the costs of the actual work zone impacts that were 22 avoided justify the incentives paid?” This paper answers that question affirmatively based on an 23 evaluatio...