modeling

Plug-in Electric Vehicle Diffusion in California: Role of Exposure to New Technology at Home and Work

Research Product Type
Research Report
The market for plug-in electric vehicles (PEVs) that primarily include battery electric vehicles (BEVs) and plug-in hybrid vehicles (PHEVs) has been rapidly growing in California for the past few years. Given the targets for PEV penetration in the state, it is important to have a better understanding of the pattern of technology diffusion and the factors that are driving the process. Using spatial analysis and Poisson count models, the researchers identify the importance of a neighborhood effect (at home locations) and a workplace effect (at commute destinations) in supporting the diffusion of PEV technology in California.

Reducing empty miles of shared mobility on highway corridors

  • Principal Investigator Michael Zhang, Ph.D.
  • University of California, Davis
This project will develop a traffic assignment model to allocate vehicular trips to corridor networks linking suburban and rural communities, in order to assess the impact of shared mobility on highway traffic and reduce empty vehicle mileage.
Project Status
In Progress

Regional Emission Analysis using Travel Demand Models

Research Product Type
Associated Publication
In this study, a tool was developed to automatically link travel demand model outputs with MOVES-Matrix to provide emissions estimates at both the link and overall inventory level.

Sensitivity Testing of Induced Highway Travel

  • Principal Investigator Yunwan Zhang, M.S.
  • University of California, Davis
This project uses a transportation demand model to examine the magnitude of potential biases to represent induced travel from expanded highway capacity.
Project Status
Complete

Sensitivity Testing of Induced Highway Travel in the Sacramento Regional Travel Demand Model

Research Product Type
Research Report
This report uses the state-of-the-practice transportation demand model, the Sacramento Council of Governments SACSIM19 model, to examine (1) the model's representation of induced travel, (2) the influence of variation in key inputs on vehicle travel and roadway congestions, and (3) the effect of changes in induced travel-related input variables on the comparisons of scenarios with and without highway expansions.

Solving for Equilibrium in the Basic Bathtub Model

Research Product Type
Associated Publication
This paper develops a customized method for computational solution of equilibrium in the basic bathtub model with smooth preferences that exploits the mathematical structure of the problem. The researchers then apply their model to traffic congestion.