25 citations · 53 across the 19 of their papers we have counts for
19 papers
Bus Fleet Electrification Under Capital Cost and Scheduling Constraints: A Five-Agency Case Study
Hadi Bhidya, Taner Cokyasar, Omer Verbas
As transit agencies consider bus fleet electrification, understanding the efficiency and cost of replacing diesel buses (DBs) with battery electric buses (BEBs) is critical. To eva…
Modeling of Mobility and Energy Policies in an Agent-Based Framework: Case Studies for Chicago Region in 2050
Md Rakibul Alam, Omer Verbas, Taner Cokyasar +10
Metropolitan regions are simultaneously pursuing several interventions to improve mobility, accessibility, and energy efficiency, necessitating integrated tools to understand how t…
Intercity EV Charging Readiness in Türkiye: A Countrywide Scheduling and Economic Assessment
Taner Cokyasar
This paper assesses the readiness of Türkiye's electric vehicle (EV) charging infrastructure to support cost-competitive intercity travel compared to internal combustion engine (IC…
A National-Scale EV Charging Scheduling Framework: Optimal Detour Routing Under Infrastructure Capacity Constraints
Taner Cokyasar
As electric vehicle (EV) adoption grows, quantifying the scheduling burden and economic cost of long-distance travel under the existing charging infrastructure becomes increasingly…
Integrated Optimization of Scheduling and Flexible Charging in Mixed Electric-Diesel Urban Transit Bus Systems
Sadjad Bazarnovi, Taner Cokyasar, Omer Verbas +1
The transition of transit fleets to alternative powertrains offers a potential pathway to reducing the cost of mobility. However, the limited range and long charging durations of b…
Modeling and Calibration of Supplier Selection Problem in Freight Agent-Based Simulations
Abdelrahman Ismael, Taner Cokyasar
Freight transportation modeling often struggles with data limitations, especially in accurately representing complex supplier selection processes and their impact on network flows.…
Extreme-Scale EV Charging Infrastructure Planning for Last-Mile Delivery Using High-Performance Parallel Computing
Waquar Kaleem, Taner Cokyasar, Jeffrey Larson +3
This paper addresses stochastic charger location and allocation problems under queue congestion for last-mile delivery using electric vehicles (EVs). The objective is to decide whe…
Equity Impacts of Public Transit Network Redesign with Shared Autonomous Mobility Services
Max T. M. Ng, Meredith Raymer, Hani S. Mahmassani +2
This study examines the equity impacts of integrating shared autonomous mobility services (SAMS) into transit system redesign. Using the Greater Chicago area as a case study, we co…
Joint Optimization of Multimodal Transit Frequency and Shared Autonomous Vehicle Fleet Size with Hybrid Metaheuristic and Nonlinear Programming
Max T. M. Ng, Hani S. Mahmassani, Draco Tong +2
Shared autonomous vehicles (SAVs) bring competition to traditional transit services but redesigning multimodal transit network can utilize SAVs as feeders to enhance service effici…
Impact of Transit on Mobility, Equity, and Economy in the Chicago Metropolitan Region
Omer Verbas, Taner Cokyasar, Seamus Joyce-Johnson +6
Transit is essential for urban transportation and achieving net-zero targets. In urban areas like the Chicago Metropolitan Region, transit enhances mobility and connects people, fo…
Joint Optimization of Pattern, Headway, and Fleet Size of Multiple Urban Transit Lines with Perceived Headway Consideration and Passenger Flow Allocation
Max T. M. Ng, Draco Tong, Hani S. Mahmassani +2
This study addresses the urban transit pattern design problem, optimizing stop sequences, headways, and fleet sizes across multiple routes and periods simultaneously to minimize us…
Modeling Transit in a Fully Integrated Agent-Based Framework: Methodology and Large-Scale Application
Omer Verbas, Taner Cokyasar, Pedro Veiga de Camargo +3
This study presents a transit routing, assignment, and simulation framework which is fully embedded in a multimodal, multi-agent transportation demand and supply modeling platform.…
Problem of Locating and Allocating Charging Equipment for Battery Electric Buses under Stochastic Charging Demand
Sadjad Bazarnovi, Taner Cokyasar, Omer Verbas +1
Bus electrification plays a crucial role in advancing urban transportation sustainability. Battery Electric Buses (BEBs), however, often need recharging, making the Problem of Loca…
Large-Scale Dynamic Ridesharing with Iterative Assignment
Akhil Vakayil, Felipe de Souza, Taner Cokyasar +2
Transportation network companies (TNCs) have become a highly utilized transportation mode over the past years. At their emergence, TNCs were serving ride requests one by one. Howev…
Heuristic Solutions to the Single Depot Electric Vehicle Scheduling Problem with Next Day Operability Constraints
Amir Davatgari, Taner Cokyasar, Omer Verbas +1
This study focuses on the single depot electric vehicle scheduling problem (SDEVSP) within the broader context of the vehicle scheduling problem (VSP). By developing an effective s…
Redesigning Large-Scale Multimodal Transit Networks with Shared Autonomous Mobility Services
Max T. M. Ng, Hani S. Mahmassani, Ömer Verbas +2
This study addresses a large-scale multimodal transit network design problem, with Shared Autonomous Mobility Services (SAMS) as both transit feeders and an origin-to-destination m…
Electric Vehicle Supply Equipment Location and Capacity Allocation for Fixed-Route Networks
Amir Davatgari, Taner Cokyasar, Anirudh Subramanyam +2
Electric vehicle (EV) supply equipment location and allocation (EVSELCA) problems for freight vehicles are becoming more important because of the trending electrification shift. So…
Joint Routing of Conventional and Range-Extended Electric Vehicles in a Large Metropolitan Network
Anirudh Subramanyam, Taner Cokyasar, Jeffrey Larson +1
Range-extended electric vehicles combine the higher efficiency and environmental benefits of battery-powered electric motors with the longer mileage and autonomy of conventional in…
A Time-Constrained Capacitated Vehicle Routing Problem in Urban E-Commerce Delivery
Taner Cokyasar, Anirudh Subramanyam, Jeffrey Larson +2
Electric vehicle routing problems can be particularly complex when recharging must be performed mid-route. In some applications such as the e-commerce parcel delivery truck routing…