Works (13)
Updated: July 2nd, 2024 05:10
2024 article
Deep Reinforcement Learning Technique for Traffic Metering in Connected Urban Street Networks
Mohebifard, R., & Hajbabaie, A. (2024, June 19). TRANSPORTATION RESEARCH RECORD, Vol. 6.
author keywords: perimeter control; data and data science; artificial intelligence and advanced computing applications; machine learning; planning and analysis; transportation network modeling
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science; OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: June 22, 2024
2024 article
Integrated corridor management by cooperative traffic signal and ramp metering control
Al Farabi, A., Mohebifard, R., Niroumand, R., Hajbabaie, A., Hadi, M., & Elefteriadou, L. (2024, April 16). COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING, Vol. 4.
open access via onlinelibrary.wiley.com (publisher PDF)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: April 29, 2024
2021 journal article
Connected automated vehicle control in single lane roundabouts
Transportation Research Part C: Emerging Technologies, 131, 103308.
author keywords: Roundabout; Connected and automated vehicles; Trajectory; Convexification; Optimization; Alternating direction method of multipliers; Model predictive
TL;DR:
An optimization problem that includes vehicle dynamics and collision-avoidance constraints with explicit representation of vehicle paths is formulated and it is shown that iterating between the two sub-problems leads to convergence to the optimal solutions of the convexified problem.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: October 18, 2021
2021 journal article
Effects of Connectivity and Traffic Observability on an Adaptive Traffic Signal Control System
Transportation Research Record: Journal of the Transportation Research Board, 2675(10), 800–814.
TL;DR:
The results showed that a 40% CV market share was required for the adaptive signal controller using only CV data to outperform signal control with only loop detector data, and integrating 10% of CV data with loop detectors data in the adaptive sign control improved traffic performance and travel time reliability.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: June 30, 2021
2021 journal article
Trajectory control in roundabouts with a mixed fleet of automated and human‐driven vehicles
Computer-Aided Civil and Infrastructure Engineering, 37(15), 1959–1977.
TL;DR:
The analyses indicate that the presence of cooperative CAVs in roundabouts can lead to considerable improvements, and the solution technique has convexification, alternating direction method of multipliers, and cutting plane decomposition components to tackle the complexities of the problem.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: June 30, 2021
2020 journal article
Utilization Management of Highway Operations Equipment
TRANSPORTATION RESEARCH RECORD, 2674(9), 202–215.
TL;DR:
The numerical experiments reveal that the proposed framework can facilitate the utilization prediction and management of highway operations equipment and save up to 16.6% in operational costs considering different demand scenarios.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: July 20, 2020
2019 journal article
Cooperative traffic signal and perimeter control in semi-connected urban-street networks
Transportation Research Part C: Emerging Technologies, 104, 408–427.
Contributors: * , S. Islam * & A. Hajbabaie*
author keywords: Cooperative traffic control; Traffic signal optimization; Perimeter control; Distributed optimization and coordination algorithms; Connected vehicles
TL;DR:
An integrated formulation and a distributed solution technique for cooperative signal control and perimeter traffic metering in urban street networks with various market penetration rates of connected vehicles and observed that cooperative signal timing and perimeter control yielded significant improvements in traffic operations.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(OpenAlex)
Source: ORCID
Added: December 10, 2019
2019 journal article
Optimal network-level traffic signal control: A benders decomposition-based solution algorithm
Transportation Research Part B: Methodological, 121, 252–274.
Source: ORCID
Added: December 7, 2021
2019 journal article
Optimal network-level traffic signal control: A benders decomposition-based solution algorithm
Transportation Research Part B: Methodological, 121, 252–274.
Contributors: * & A. Hajbabaie*
author keywords: Traffic signal control; Cell transmission model; Benders decomposition; Flow holding-back problem
TL;DR:
It is proved that the proposed solution technique guarantees convergence to optimal solutions with a finite number of iterations and a dual estimation algorithm is proposed for the new MINLP (the Primal problem), which utilizes a simulation-based approach to generate Benders cuts instead of solving a complex optimization program.
(via Semantic Scholar)
Source: ORCID
Added: August 27, 2019
2018 journal article
Distributed Optimization and Coordination Algorithms for Dynamic Traffic Metering in Urban Street Networks
IEEE Transactions on Intelligent Transportation Systems, 20(5), 1930–1941.
Contributors: * & A. Hajbabaie*
author keywords: Dynamic traffic metering; perimeter control; distributed optimization; distributed coordination; model predictive control; mixed-integer linear program
TL;DR:
A real-time and scalable methodology for finding near-optimal metering rates dynamically in urban street networks based on the cell transmission model and found significant improvements in network operations as a result of traffic metering.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(OpenAlex)
Source: ORCID
Added: August 27, 2019
2018 journal article
Dynamic traffic metering in urban street networks: Formulation and solution algorithm
Transportation Research Part C: Emerging Technologies, 93, 161–178.
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(OpenAlex)
Source: ORCID
Added: December 7, 2021
2018 journal article
Dynamic traffic metering in urban street networks: Formulation and solution algorithm
Transportation Research Part C: Emerging Technologies, 93, 161–178.
Contributors: * & A. Hajbabaie*
author keywords: Traffic metering; Perimeter control; Mixed integer linear programming; Optimization; Cell transmission model; Benders decomposition; Urban street networks
TL;DR:
This paper presents an optimization program for dynamic traffic metering in urban street networks based on the Cell Transmission Model (CTM) and develops a novel and efficient solution approach that solves the problem by converting the MILP to a linear program and several CTM simulation runs.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(OpenAlex)
Source: ORCID
Added: August 27, 2019
2018 conference paper
Real-Time Adaptive Traffic Metering in a Connected Urban Street Network
Transportation Research Board 97th Annual Meeting. https://trid.trb.org/view/1497102
Source: ORCID
Added: December 7, 2021
Employment
Updated: June 24th, 2020 12:38
2019 - present
North Carolina State University Raleigh, NC, US
Graduate Research Assistant
Civil, Construction, and Environmental Engineering
2016 - 2020
Washington State University Pullman, WA, US
Graduate Research Asisstant
Civil and Environmental Engineering
Education
Updated: June 24th, 2020 12:40
2020 - present
North Carolina State University Raleigh, NC, US
Ph.D.
Civil, Construction, and Environmental Engineering
2016 - 2020
Washington State University Pullman, WA, US
Ph.D.
Civil and Environmental Engineering Department
2012 - 2014
Sharif University of Technology Tehran, Tehran, IR
MS.c.
Civil and Environmental Engineering Department
2008 - 2012
Shahid Bahonar University of Kerman Kerman, Kerman, IR
BS.c.
Civil and Environmental Engineering Department
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