Theoretical Investigation of Traffic Equilibrium on Bridges

Bede, Zsuzsanna; Török, Ádám

doi:10.2478/ttj-2014-0013

Cited by 2 publications

(3 citation statements)

References 15 publications

(1 reference statement)

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“…In the intermediate nodes (7), flow is passing through, and constraints (6) already ensure that there is at least one lane converging and diverging from every node, since the flow arriving must leave that node. However, in nodes (intersections) that generate or absorb trips, there must be one lane that converges and diverges to and from that node-constraints (8) and (9). Constraint (10) sets the upper bound, i.e., the number of lanes of both road directions.…”

Section: Constraintsmentioning

confidence: 99%

“…Hitherto, research on the topic of reversible lanes has focused on signalized intersections and median lane problems [9,10]. Reversible lane problems assume that there would be at least one lane in each road direction, but that assumption is no longer needed once vehicles become automated and a smart system is put in place to control the roadway layout.…”

Section: Introductionmentioning

confidence: 99%

“…However, in the human-driven vehicles paradigm, traffic conflicts have been identified due to the human maladaptation to reversible lanes, which leads to low operating efficiency and a low lane utilization rate [1,14]. In practice, reversible lanes are applied as median reversible lanes in bridges [9] and freeway construction zones [15]. More recently, a few researchers have made attempts to study the impact of reversible lane operation for homogeneous traffic [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Reversible Lane Network Design Problem (RL-NDP) for Smart Cities with Automated Traffic

2020

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With automated vehicles (AVs), reversible lanes could be a sustainable transportation solution once there is vehicle-to-infrastructure connectivity informing AVs about the lane configuration changes. This paper introduced the reversible lane network design problem (RL-NDP), formulated in mixed-integer non-linear mathematical programming—both the traffic assignment and the reversible lane decisions were embedded. The model was applied on an hourly basis in the case study of the city of Delft, the Netherlands. Reversible lanes are examined under no traffic equilibrium (former paths are maintained); user-equilibrium (UE) assignment (AVs decide their own paths); and system-optimum (SO) traffic assignment (AVs are forced to follow SO paths). We found out that reversible lanes reduce congested roads, total travel times, and delays up to 36%, 9%, and 22%, respectively. The SO scenario was revealed to be beneficial in reducing the total travel time and congested roads in peak hours, whereas UE is equally optimal in the remaining hours. A dual-scenario mixing SO and UE throughout the day reduced congested roads, total travel times, and delay up to 40%, 8%, and 19%, respectively, yet increased 1% in travel distance. The spatial analysis suggested a substantial lane variability in the suburbs, yet a strong presence of reversible lanes in the city center.

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Section: Constraintsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Reversible Lane Network Design Problem (RL-NDP) for Smart Cities with Automated Traffic

2020

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Climate-Oriented Assessment of Main Street Design and Development in Budapest

Csete

Buzási

2016

Journal of Environmental Engineering and Landscape Management

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Main streets play pivotal role in urban areas in terms of economic, social, moreover environmental contexts. Such streets are generally situated in densely built-up areas, where the adverse effects of climate change, such as rising temperature and changing precipitation patterns occur emphatically. Increasing urban heat island effect or extreme amount of runoff water during severe storms and floods significantly decrease the adaptive capacity of a city, consequently its residents becoming more vulnerable. Therefore involving climate-oriented design principles into planning and construction phase contributes to reach more sustainable and climate-friendly open spaces what are strongly relevant especially in main streets which are designed for a great amount of people. Present study provides a criteria matrix for assessing the climate-friendly level of recently renewed main streets in Budapest. Due to this assessment tool the adaptation and mitigation performance of the selected projects can be evaluated. For identifying strengths and weaknesses of a given project, a rating scheme has been applied by selecting and using 42 indicators grouped into mitigation, adaptation and awareness raising categories. Thus planners, decision-makers and other stakeholders can easily define future opportunities and challenges, accordingly this study may contribute to take urban street design practices toward climate-friendliness by paying more attention on changing local weather patterns and related consequences.

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Theoretical Investigation of Traffic Equilibrium on Bridges

Cited by 2 publications

References 15 publications

The Reversible Lane Network Design Problem (RL-NDP) for Smart Cities with Automated Traffic

The Reversible Lane Network Design Problem (RL-NDP) for Smart Cities with Automated Traffic

Climate-Oriented Assessment of Main Street Design and Development in Budapest

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