Dissertation / Thesis

In this dissertation, a cooperative framework for mixed traffic is proposed at both macroscopic and microscopic levels.

This dissertation focuses on the complex nature of the cost drivers of corridor direct current fast chargers (DCFCs) along major transportation corridors and aims to better understand charger reliability in the context of DCFCs. It also explores the level of reliability that is desirable in the context of drivers.

Insights from material flow analysis, material performance, and environmental impacts were coupled together to evaluate alternative mineral flows in comparison to conventional mineral admixtures (i.e., fly ash, GBFS, limestone, metakaolin, and silica fumes).

This study develops an analytical framework to automatically generate optimal plans for fleet operations and conversion based on fleet-specific characteristics. The goal of the framework is to allow agencies to minimize the fleet-wide energy use, life-cycle CO2 emissions, and/or economic costs when transitioning to alternative fuels.

This dissertation sets out to 1) explore the feasibility of implementing a per-mile road-usage charge (RUC) in replacement of the motor fuel taxes, 2) estimate the changes in vehicles-miles travelled (VMT) and the revenues generated from motor fuel taxes under the backdrop of vehicle electrification, and 3) quantify the effects of vehicle class and fuel type portfolios in ZEV-adopting households’ vehicle replacement decisions.

In this dissertation, advanced eco-trajectory planning algorithms have been developed to address four challenges.

This study explores how has EV adoption increased over the past years and predicts how will the EV market continue to expand and penetrate in the future years using a case study with regional granular travel survey data.

The purpose of this thesis is to analyze the potential effect that pedestrian infrastructure ADA compliance issues may have on persons with disabilities or physical limitations.

This dissertation proposes an inclusive framework to analyze ride-pool services, assuming they implement the mechanism of spatial bipartite matching. An agent-based simulator is developed to validate and calibrate the models.

The goal of this dissertation is to analyze applications through the lens of circular economy in California based on life cycle assessment (LCA) and techno-economic analysis (TEA).