Service Network Design for Same-Day Delivery with Hub Capacity Constraints
We study a new service network design problem for an urban same-day delivery system in which the number of vehicles that can simultaneously load or unload at a hub is limited. Due to the presence o…
A Chance-Constrained Two-Echelon Vehicle Routing Problem with Stochastic Demands
Two-echelon distribution systems are often considered in city logistics to maintain economies of scale and satisfy the emission zone requirements in the cities. In this work, we formulate the two-e…
An Exact Price-Cut-and-Enumerate Method for the Capacitated Multitrip Vehicle…
We consider the capacitated multitrip vehicle routing problem with time windows (CMTVRPTW), where vehicles are allowed to make multiple trips. The ability to perform multiple trips is necessary for…
Distributionally Robust Optimization Approaches for a Stochastic Mobile Facil…
We propose two distributionally robust optimization (DRO) models for a mobile facility (MF) fleet-sizing, routing, and scheduling problem (MFRSP) with time-dependent and random demand as well as me…
Public Transport-Based Crowd-Shipping with Backup Transfers
With the rising urbanization and booming e-commerce, traditional last-mile delivery systems fail to satisfy the need for faster, cheaper, and more environmentally friendly deliveries. Several new a…
The Dial-a-Ride Problem with School Bell Time Adjustment
In this paper, we study a paratransit application in which children are transported every day from their homes to their special schools or medical-social establishments. To optimize this transporta…
Microscopic Traffic Modeling Inside Intersections: Interactions Between Drivers
Microscopic traffic flow models enable predictions of traffic operations, which allows traffic engineers to assess the efficiency and safety effects of roadway designs. Modeling vehicle trajectorie…
Integrated Optimization of Planning and Operations for Shared Autonomous Elec…
Shared autonomous electric vehicle systems will be a promising alternative for sustainable urban mobility. This study investigates an integrated optimization problem for shared autonomous electric …
Robust and Cost-Efficient Integrated Multiple Depot Vehicle and Crew Scheduli…
For vehicle and crew scheduling in public bus transport, two concepts are intensively studied to reduce resource usage and minimize operational costs: Integrated, that is, simultaneous scheduling o…
A Combined Simulation-Optimization Approach for Robust Timetabling on Main Ra…
Performance aspects such as travel time, punctuality, and robustness are conflicting goals of utmost importance for railway transports. To successfully plan railway traffic, it is therefore importa…
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