travel demand | National Center for Sustainable Transportation

Fighting for Curb Space: Parking, Bike Sharing, Urban Freight Deliveries, Ride‐Hailing, and Others Users

Principal Investigator Miguel Jaller, Ph.D.
University of California, Davis

This project studies how curb space demand is changing with current transportation trends like ride-hailing and rapid e-commerce.

Project Status

Complete

Fighting for Curb Space: Parking, Ride-Hailing, Urban Freight Deliveries, and Other Users

Research Product Type

Research Report

This study developed a parking simulation in SUMO following a set of parking behaviors (e.g., parking search, parking with off-street parking information availability, double-parking). These scenarios were tested in three different (land use-based) sub-study areas representing residential, commercial and mixed-use.

Fuel and Emissions Calculator (FEC) Version 4.0

Principal Investigator Randall Guensler, Ph.D.
Georgia Institute of Technology

This research will update to the spreadsheet version of the Fuel and Emissions Calculator (FEC) to Version 4.0. The update will incorporate the emission and energy use rates from the latest version of the EPA's MOVES 4.0 regulatory model for conventional and electric vehicles, utilizing the latest matrices from MOVES-Matrix 4.0 (also developed by the research team) and associated source type technology parameters.

Project Status

In Progress

Future Passenger Travel Demand in the United States

Principal Investigator Giovanni Circella, Ph.D.
University of California, Davis

This white paper discusses a potential "Vehicle Miles Traveled (VMT) Peak" for the 21st century. It presents a research agenda designed to clarify the reasons for the current VMT peak and to assess the implications for future passenger travel demand in the U.S.

Project Status

Complete

Georgia Express Lane Corridors Vehicle Occupancy and Throughput Study 2018-2020 - Volume I: Vehicle and Person Throughput Analysis Before and After the I-75 Northwest Corridor and I-85 Express Lanes Extension

Research Product Type

Research Report

This report summarizes the vehicle and person throughput analysis for the I-75 Northwest Corridor (NWC) and I-85 Express Lanes in Atlanta, GA, undertaken by the Georgia Institute of Technology research team for the State Road and Tollway Authority (SRTA).

HEV, PHEV and BEV Owners: A Comparative Analysis of Household Demographics, Travel Behavior, and Energy Use

Principal Investigator Ziyi Dai
Georgia Institute of Technology

This research examines the differentiation between HEV, PHEV and BEV users in Puget Sound Regional Council regarding the aspects of user household socio-demographic attributes, daily travel pattern and energy usage profile.

Project Status

Complete

Implementing and Evaluating Machine Learning Algorithms for Bikeshare System Demand Prediction

Principal Investigator Mehdi Azimi, Ph.D.
Texas Southern University

This research project will develop models for Houston bikeshare system demand prediction at the station level by leveraging data on station activities. Accurate prediction of bikeshare demand has the potential to transform the way these systems are managed and integrated into urban transportation networks, leading to improved efficiency, customer satisfaction, and sustainability.

Project Status

In Progress

Improved Emissions Models for Project Evaluation (MOVES-Matrix)

Principal Investigator Randall Guensler, Ph.D.
Georgia Institute of Technology

This project integrates the Motor Vehicle Emissions Simulator (MOVES-Matrix) with various travel demand models.

Project Status

Complete

Induced Travel Calculator Project

Principal Investigator Susan Handy, Ph.D.
University of California, Davis

This project will develop a web-based tool for calculating the induced travel effects of highway expansion projects

Project Status

Complete

Managing the Impacts of Freight in California

Research Product Type

Policy Brief

This policy brief provides a statewide assessment of freight movement on all traffic congestion, and defines freight impact areas as severely congested roadway corridors with high volumes of trucks.