Resource Type: Books, Reports, Papers, and Research Articles
To support the analysis of driver behavior at rural freeway work zone lane closure merge points, CTRE staff collected traffic data at merge areas using video image processing technologies. The collect…MoreWork Zone Capacity
Freeway Work Zone Committee Final Report on Freeway Work Zone Traffic Control Method Selection Process (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Final report of a Wisconsin DOT committee which reviewed literature on work zone lane capacity and recommended a process for selecting traffic control staging method. The information is focused on rur…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…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 …MoreUpdated Capacity Values for Short-Term Freeway Work Zone Lane Closures (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Recommendations on estimating the capacities of short-term freeway work zone lane closures are presented. The recommendations are based on 45 hr of capacity counts at 33 work zones in Texas between 19…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…MoreImpact of Shoulder Use and Capacity Reduction Factors on Highway Work Zone Optimization (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Highway maintenance, often requiring lane closure, is very expensive in terms of the costs associated with transportation agencies (i.e., work zone setups) and road users (i.e., delay). Longer work zo…MoreImpact of Lane Closures on Roadway Capacity: Development of a Two-Lane Work Zone Lane Closure Analysis Procedure (Part A) (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
While there have been a number of studies conducted on roadway work zone operations, very few of them have focused on two-lane roadway work zones, where one lane is closed and traffic flow must altern…MoreEffects of Road Construction Intensity and Operations on Rural Freeway Work Zone Capacity (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Capacity is affected by construction type and its intensity on adjacent open traffic lanes. The effect on capacity is a function of vehicles moving in and out of the closed lanes of the work zone, and…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…MoreEstimation of Freeway Work Zone Capacity Using Simulation and Field Data (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The objective of this research was to develop analytical models and procedures for estimating the capacity of a freeway work zone considering various geometric, traffic, and work zone related paramete…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…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…MoreImpact of Trucks on Arterial LOS and Freeway Work Zone Capacity Part B: Freeway Work Zone Capacity (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The existing FDOT lane closure analysis method was developed several years ago, and it is the desire of the Department to evaluate and update it accordingly. The objective of this research was to deve…MoreDevelopment of Breakdown Probability Models and Heavy Vehicle Passenger Car Equivalents for Rural Freeway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
With nearly nine million lane-miles of public roadway and an economy driven by the automobile, interruptions to normal traffic operations for construction and maintenance are inevitable in the U.S.A.,…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…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…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…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…MoreDetermining Queue and Congestion in Highway Work Zone Bottlenecks (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study investigated some of the issues in capacity, queue length, and delay estimation in work zones. In particular, the current methods for analyzing congestion in work zones are examined. Furthe…MoreEstimating Interstate Highway Capacity for Short-Term Work Zone Lane Closures: Development of Methodology (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Defining and understanding traffic flow parameters within short-term Interstate work zones are crucial in developing effective policies to manage construction and maintenance work conducted on the nat…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…MoreImpact of Lane Closures on Roadway Capacity: Part B: Arterial Work Zone Capacity (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The current Florida Department of Transportation (FDOT) arterial work zone capacity estimation procedure does not account for various operating and work zone characteristics of the facility (i.e. spee…MoreCapacity for North Carolina Freeway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zone capacity values for rural and urban freeways without continuous frontage roads were defined and determined. Data were collected using Nu-Metrics counters and classifiers at 24 work zones in …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…MoreMultivariate Regression for Estimating Driving Behavior Parameters in Work Zone Simulation to Replicate Field Capacities (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Traffic simulation tools are being increasingly adopted by DOTs for various traffic analysis studies, including assessing work zone traffic impacts. This is due, in part, to their ability to model ind…More