Energy

Reducing Greenhouse Emissions and Fuel Consumption: Sustainable Approaches for Surface Transportation

Shaheen, Susan A.
Lipman, Timothy E.
2007

Climate change is rapidly becoming known as a tangible issue that must be addressed to avoid major environmental consequences in the future. Recent change in public opinion has been caused by the physical signs of climate change–melting glaciers, rising sea levels, more severe storm and drought events, and hotter average global temperatures annually. Transportation is a major contributor of carbon dioxide (CO2) and other greenhouse gas emissions from human activity, accounting for approximately 14 percent of total anthropogenic emissions globally and about 27 percent in the U.S.Fortunately...

Economic Assessment of Electric-Drive Vehicle Operation in California and Other U.S. Regions

Lidicker, Jeffrey R.
Lipman, Timothy E.
Shaheen, Susan A.
2010

This study examines the relative economics of electric vehicle operation in the context of current electricity rates in specific utility service territories. The authors examined 14 utility territories offering electric vehicle (EV) rates, focusing on California but also including other regions of theUnited States. The consumer costs of EV charging were examined in comparison with gasoline price data, geographic location, and during three highly variable gasoline price periods of July 2008, January 2009, and July 2009. In a switch from a conventional 23 mile per gallon (10.2liters/100...

Vehicle Electrification in Carsharing and Transportation Network Company (TNC) Fleets: Current and Future Trends

Shaheen, Susan
Farrar, Emily
2022

This chapter focuses on two shared mobility modes — carsharing and transportation network companies (TNCs, also known as ridesourcing and ride-hailing) — and how they can incorporate electric vehicles (EVs) into their fleets. Shared mobility is the shared use of a vehicle, scooter, bicycle, or other travel mode; it provides users with short-term access to a travel mode on an as-needed basis. Carsharing (e.g., Zipcar, car2go) offers members access to vehicles by joining an organization that provides and maintains a fleet of cars and/or light trucks. Vehicles may be located throughout a city...

Energy Efficiency - Innovations: Driving Prosperity, Slashing Emissions

Shaheen, Susan
Cohen, Adam
2020

In recent years, mobility on demand (MOD) is gaining popularity among mobility consumers. This innovative concept is based on the principle that transportation is a commodity where modes have economic values that are distinguishable in terms of cost, journey time, wait time, number of con-nections, convenience, and other attributes. MOD enables consumers to access mobility, goods and services on demand by dispatching or using shared mobility, ...