article thumbnail

UMTRI: fuel economy improvements are present throughout the sales-weighted distributions of same MY vehicles

Green Car Congress

mpg between model years 2008 and 2014, University of Michigan Transportation Research Institute (UMTRI) researchers Michael Sivak and Brandon Schoettle have documented sales-weighted distributions for the same model year vehicles (cars, pickup trucks, vans and SUVs). In 2008, the corresponding figures were 15% and 5%, respectively.

article thumbnail

Actual fuel economy of cars and light trucks: 1966-2019

Green Car Congress

A modest increase between 2004 and 2008 (from 19.6 A minor increase between 2008 and 2019 (from 21.8 In comparison, the change between 2008 and 2019 (from 4.59 Michael Sivak is the managing director of Sivak Applied Research and the former director of Sustainable Worldwide Transportation at the University of Michigan.

article thumbnail

Further reduction in licensing of young drivers during the pandemic

Green Car Congress

In 2011 , Brandon Schoettle and I documented the fact that, during the 25-year period from 1983 to 2008, there was a large reduction in the proportion of young persons with a driver’s license, and an increase in the licensing of older persons. The present analysis focuses on the changes from 2019 to 2020 (the first year with the pandemic).

2008 231
article thumbnail

Actual fuel economy of cars and light trucks: 1966-2017

Green Car Congress

A modest increase between 2004 and 2008 (from 19.6 A minor increase between 2008 and 2017 (from 21.8 In comparison, the change between 2008 and 2017 (from 4.59 Michael Sivak is the managing director of Sivak Applied Research and the former director of Sustainable Worldwide Transportation at the University of Michigan.

article thumbnail

NOAA: North American 2008 Cooling Attributed to Natural Causes

Green Car Congress

Right side: 2008 annual surface air temperature, shown as a departure from the 1971-2000 climatology. Special emphasis was given to the reasons for North American coolness in 2008. In 2008, global land temperatures were the sixth warmest on record, whereas it was the coldest year in North America since 1996. Credit: NOAA.

2008 170
article thumbnail

Younger persons are still less likely to have a driver’s license than in the 1980s

Green Car Congress

The previous study compared data for 1983 (as the baseline) with those for 2008, 2011, 2014, and 2017. The present study compares data for 2018 (released in late December 2019) with data for 1983 and 2014. That was followed by modest increases in the licensure for all age groups between 2014 and 2017.

Personal 293
article thumbnail

Vattenfall and Aalborg University Partner with SCF Technologies on Near Supercritical Bio-oil Process

Green Car Congress

Vattenfall and Aalborg University are partnering with Danish startup SCF Technologies in a two-year project to design a demonstration plant based on SCF’s CatLiq process—an application of the firm’s supercritical fluid technology in the catalytic production of bio-oil from organic waste. SCF Technologies 2008 Annual Report.

Oil 218