Background: Defining the optimal fleet portfolio is a crucial process in airline planning. The published efforts in literature provide ways to anticipate the disruption effects on the passenger demand; however, the proposed solution in this paper provides visibility on the impact of sustainable...

Open-pit mining operations depend heavily on the availability and reliability of complex equipment fleets, where the failure of one component can disrupt overall productivity. This study proposes two complementary optimization models to enhance fleet allocation and reliability in the mining...

Car-sharing services i.e. short-term car rentals, are ideologically driven systems aimed at modernizing contemporary transportation towards sustainable development and encouraging society to abandon individual motorization. Despite their noble goals, car-sharing systems face numerous operational...

The deployment of alternatively fueled (AF) vehicles constitutes an important measure in meeting the European Union's (EU's) climate goals. The study aims to characterize and evaluate, in a comparative manner, the current stage of the adoption of AF passenger cars into the general (M1) passenger...

Background: This study addresses optimising fleet size in a system with a heterogeneous truck fleet, aiming to minimise transportation costs in interfacility material transfer operations. Methods: The material transfer process is modelled using a closed queueing network (CQN) that considers...

Using a stacked differences-in-differences approach, we study the effects of Low Emission Zones (LEZs) in Germany. The implementation of stage 1 and 2 LEZs, which banned the most pollution-intensive vehicles from city centers, significantly reduced PM10 concentrations. The most restrictive third...

Serbia is transitioning to an environmentally sustainable, low-carbon, climate-resilient economy, but the transition must be accelerated in view of climate change and increasing air pollution. Serbia has Europe's worst per capita record for pollution-related deaths, and the environmental...

The last mile delivery is particularly challenging for stochastic deliveries with narrow time windows. This topic is timely due to the rise of e-commerce and courier type services and the impacts of fleet size and vehicle type on delivery costs. A novel contribution of this research is to...

In this work, we extend the time-dependent vehicle routing problem with time windows on a road network by considering two types of vehicles, large and small, to serve customers. Motivated from city logistics applications, large vehicles are forbidden from the downtown area. Accordingly, goods...

Financial modelling of road transport operations involves structural algorithms for developing intermediate and final outputs of financial models and estimating some key inputs. While some key inputs to a transport financial model, e.g. the periodic transportation plan, current or forecast cost...

The rise of autonomous driving may sharply reshape ride-sourcing markets by influencing drivers’ income and participation, customers’ choices, ride-sourcing platforms’ operations, and governments’ regulations. We introduce a model which characterizes a ride-sourcing market with a mixed...

We analyze an optimal electric vehicle (EV) fleet and charging infrastructure capacity planning problem in a spatial setting. As customer requests arrive at rate λ, the system operator must determine the minimum number of vehicles and chargers for a given service level along with a matching and...

Problem definition: The configuration of an emergency vehicle fleet (EVF) is critical to ensure that responders have the resources necessary to serve emergencies quickly and help prevent loss of life and property damage. Determining the fleet’s optimal design involves decisions regarding the...

Background: Road transport companies utilize transport capacities as fixed compositions of tractors and semi-trailers, while the possibility of exchanging semi-trailers is considered ad hoc, after some unforeseen circumstances emerge on the route. Such an approach is a limiting factor in...

In maritime industry, moving assets (e.g., naval ships, dredgers, pilot vessels) are subject to obligatory inspections that are based on calendar time. These inspections consist of exhaustive operations that need the assets to be towed into specialized facilities referred to as dry-docks. In...