Regional Impact of Roadway Construction on Traffic Operations

Pesti, Géza; Chu, Chi-Leung; Balke, Kevin; Shelton, Jeff; Zeng, Xiaosi; Chaudhary, Nadeem

doi:10.3141/2272-07

Cited by 3 publications

(4 citation statements)

References 18 publications

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“…Some researchers have developed different methods to predict and evaluate the impact of construction on traffic operation, such as dynamic traffic assignment [27], a five-parameter logistic model that describes the speed-density relationship [22], an optimal nonlinear fitting theory [28], traffic speed versus flow curves, capacity reduction factors, and free-flow speed reduction factors [29]. A bilevel optimization model was proposed for the purpose of minimizing the total travel time of the affected network, involving a link closure and a proposed alternate route for travelers [30].…”

Section: Predict and Evaluate Methods Of Highway Work Zone Impactmentioning

confidence: 99%

Evaluation of Two Improved Schemes at Non-Aligned Intersections Affected by a Work Zone with an Entropy Method

Shao

Luo

et al. 2020

Sustainability

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The impact of work zones on traffic is a common problem encountered in traffic management. The reconstruction of roads is inevitable, and it is necessary and urgent to reduce the impact of the work zone on the operation of traffic. There are many existing research results on the influence of highway work zones, including management strategies, traffic flow control strategies, and various corresponding model theories. There are also many research results on the impacts of urban road and subway construction on traffic operation, including construction efficiency, economic impact, and travel matrix. However, there are few studies concerning the choice of work zone location, and most previous studies have assumed that the work zone choice was scientific and reasonable. Therefore, it is reasonable to choose the location of the work zone and to assess whether there is room for improvement in the road form of the work zone, but this remains a research gap. Therefore, we studied a seven-lane main road T-intersection in Xi’an, China, and investigated a work zone located at this intersection that caused a road offset, leading to the non-aligned flow of main traffic. We designed two road improvement schemes and multiple transition schemes, used VISSIM software to evaluate the traffic operation of the two schemes, and used the entropy method to choose the suitability of the two schemes under different conditions. According to the results, in the best case, the driving time, delay, and number of stops are reduced by 44%, 66%, and 92%.

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Section: Predict and Evaluate Methods Of Highway Work Zone Impactmentioning

confidence: 99%

Evaluation of Two Improved Schemes at Non-Aligned Intersections Affected by a Work Zone with an Entropy Method

Shao

Luo

et al. 2020

Sustainability

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“…Kamyab, M. [30] used machine learning to predict the influencing factors of future work areas and found that long-term speed changes are important factors in predicting the impact of work areas on traffic. Pesti, G. [10] developed a method for evaluating the impact of road construction work areas, (a) predicting the network level impact of road construction projects, (b) identifying key sections and corridors with the most severe expected construction impact, and (c) comparing alternative construction plans and schedules. Dynamic traffic allocation forms the basis for evaluating the regional impact of road construction and comparing alternative construction schedule plans.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Over the years, in an effort to alleviate the effects of construction work zones on traffic efficiency, researchers and policymakers in the field of transportation have been exploring various strategies. Some scholars have evaluated the impact of road construction through dynamic traffic allocation and compared alternative construction schedule plans in order to choose the optimal plan to reduce travel delays and improve road capacity [10,11]. Several studies have analyzed the impact of construction work zone length on road capacity [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Different Work Zone Road-Occupation Schemes for Monorail Construction

Wang,

Pan,

Xie

et al. 2023

Applied Sciences

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Due to the increasing demand for transportation, road renovation is inevitable, and the emergence of work zones has become the most common problem in traffic control. There are many research results on the impact of work zones on traffic operation, but most of them focus on various capacity theoretical models or traffic flow control strategies and are mostly concentrated in highway work areas and urban road subway construction work areas. The location of these work zones is often unable to be changed and is mostly considered reasonable. At present, there is still a gap in selecting and evaluating the location of the work zone. Therefore, this article studied a bidirectional six-lane intersection in Xi’an and investigated the situation of traffic flow distortion caused by the setting of work zones at the intersection. Two different positions and forms of work zones were designed for evaluation and analysis. Firstly, we used VISSIM (2022 student) to simulate the original and proposed work zone road-occupation schemes and analyzed six indicators. Finally, in order to determine the optimal work zone locations under different traffic situations, we applied the entropy weight method (EWM) to assign weights to multiple indicators, thereby achieving a comprehensive assessment of various schemes. The results showed that the highest improvement level among the six indicators was 50.2%, and different schemes adapted to different traffic situations. However, occupying two lanes of the median opposite the exit lane performed better under high traffic volume. Occupying the median and lanes on both sides of the median is suitable for low traffic volume. Occupying two lanes of the entrance lane and using the opposite lane as the left-turn entrance lane is suitable for situations with high traffic volume in the opposite lane.

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“…DTA models have been shown to effectively estimate network impacts of short-and long-term construction projects on area traffic patterns by identifying locations where congestion is prevalent (2). However, DTA models often require extensive computational time and computer memory to run on large urban networks.…”

mentioning

confidence: 99%

Subnetwork Analysis for Dynamic Traffic Assignment Models

Gemar

Bringardner

Boyles

et al. 2014

Transportation Research Record: Journal of the Transportation R

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Dynamic traffic assignment (DTA) can be used to model impacts of traffic control plan scenarios on travel behavior. However, using DTA for modeling construction project impacts is limited by the computational time required to simulate entire roadway networks. DTA modeling of a subarea surrounding these work zones extracted from a larger network can decrease the overall run time. A particular issue of interest is estimating dynamic demand along the boundary of the selected subnetwork. Often demand at the subnetwork boundary is based on flows extracted from a full, base network analysis. However, it is likely that impacts within the subnetwork caused by traffic control plans will extend beyond the boundary and affect this demand. The use of a logit model to reassign demand at subnetwork boundary centroids on the basis of differences in internal (subnetwork) travel times between base and impact scenarios is presented. The proposed methodology was implemented by using several software programs linked through automated scripts. The method's implementation and the results from a case study are presented. Implementing the logit formulation was found to provide better estimates of subnetwork demand, specifically along the boundary, when compared with use of a fixed demand table extracted from the vehicle trajectories of the full network model under base conditions. Ultimately, the findings were encouraging and suggest that the strategy could enhance the accuracy of subnetwork demand estimation.

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Regional Impact of Roadway Construction on Traffic Operations

Cited by 3 publications

References 18 publications

Evaluation of Two Improved Schemes at Non-Aligned Intersections Affected by a Work Zone with an Entropy Method

Evaluation of Two Improved Schemes at Non-Aligned Intersections Affected by a Work Zone with an Entropy Method

Evaluation of Different Work Zone Road-Occupation Schemes for Monorail Construction

Subnetwork Analysis for Dynamic Traffic Assignment Models

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