Blog

October 18, 2017

Transportation Lessons from a Summer in Suburbia

Over the summer I completed an internship in Washington D.C. working for Toyota North America. I learned a lot, not just about Toyota but also about using mobility services for suburban commuting. While looking for summer housing, I wanted to live close to work in the downtown area. I soon realized this was not going…

October 5, 2017

Limiting freeways to autonomous vehicles is a bad idea (today)

Can a good idea implemented too soon actually be a bad idea? I would say so, if the early implementation imposes costs in return for little benefit. About a year ago I posted about an under-developed proposal from Madrona Venture Group to restrict I-5 between Seattle and Vancouver to autonomous cars only. The Madrona team…

October 3, 2017

Gas anxiety and PHEV charging behavior

Combing an internal combustion engine and an electric powertrain, plug-in hybrid electric vehicles (PHEVs) offer the potential to reduce gasoline consumption while retaining the ability to travel long distances with fast and convenient refueling. They are inherently less dependent on recharging infrastructures than battery electric vehicles (BEVs), which can only be powered by electricity. However,…

September 26, 2017

Dockless bike share

A big game changer happened in the bike share community in China in 2016: dock-less bike share (DBS) programs represented by Mobike and Ofo began to quickly gain popularity since  first appearing in Shanghai’s urban transportation system in April 2016. Unlike traditional bike-sharing systems such as Citi Bike in New York City and Divvy in…

July 20, 2017

Fear Knot, Global Maritime Trade Industry: These SO2 Levels can be Achieved Schooner than you Think

                                 Where did the shirt you’re wearing come from? If you’re like most Americans, it was probably imported after being produced by a factory in Southeast Asia, which accounted for over 70% of clothing imports to the US in 2013. As relatively low-value items,…

June 26, 2017

Do electric vehicles actually increase emissions?

In Beijing, the capital of China, there are more than 5.6 million vehicles now which emit nearly one million tons of air pollutants per year. In 2016, there were 39 heavy-polluted days because of high levels of PM 2.5 (particulate matter smaller than 2.5 microns). Vehicle emissions account for more than 30 percent of local…

June 20, 2017

Prime Now or Prime Later?

Recently Amazon Prime Now has come up in a number of conversations I have been involved with. One group complained that they were running out of beer, and rather than going to get some they joked about ordering some on Prime Now. For those who have not yet heard of Amazon’s Prime Now, it is…

June 7, 2017

The Chicken-Egg Problem of Transit and Density

Yanbo Ge As two cities with similar regional importance in the Pacific Northwest, Seattle and Vancouver BC have a lot of similarities when it comes to climate and economic status. The two even hold pretty much the same city population (both a little more than 600,000 people). But Vancouver is much denser on average than…

May 25, 2017

Will Tesla’s Solar Roof provide cost-effective electric vehicle charging in Seattle?

Last Fall Tesla unveiled one of its newest products, the solar roof. What separates this solar panel from other solar panels is its aesthetics. As opposed to your traditional solar panels, these panels offer a more incognito design, which is meant to mimic different types of traditional roofing styles. The styles include Tuscan shingle and…

May 18, 2017

EV adoption, fast charger operations, and project economics

One of the most important factors influencing adoption of battery electric vehicles (BEVs) is the availability of charging infrastructure. Adequate infrastructure can help to address one of the biggest disincentives to adoption of BEVs, range anxiety. DC fast chargers help with the issues regarding charging since users do not have to spend a lot of…

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