Category: EV
-
ICCT’s Report on the Lifecycle Comparisons of GHG Emissions of Gas Cars vs. EV is Filling a Void
Today The International Council on Clean Transportation release a report called “A global comparison of the life-cycle greenhouse gas emissions of combustion engine and electric passenger cars“, which I find a satisfying read. Its key findings can be highlighted in the following graph: The graph is quite dense, so let me point out a few…
-
Modeling Driving Distances (3)
Since my last post on using NTHS dataset to fit people’s driving distances, I have made some further modifications: (1) There are some very large TRPMILE data values, in the order of 1000 miles. While there are most likely valid data – After all, people do travel that far – I realize that this is…
-
Modeling Driving Distances (2)
The National Household Travel Survey (NHTS) is probably the most comprehensive data source on driving behaviors of people in the US. It captures travel by US residents in all 50 States and the District of Columbia that includes trips made by “all modes of travel (private vehicle, public transportation, pedestrian and cycling) and for all…
-
Modeling Driving Distances (1)
In order to qualitatively study range anxiety, one of the first steps is to understand people’s driving behavior. A basic question is: What is the statistical distribution of trip lengths of a typical consumer? I found the answer on National Household Travel Survey’s website: https://nhts.ornl.gov/. The variable I am interested in is called “Vehicle trips”,…
-
Range Anxiety for Electric Vehicles (EV) – Part I
To a consumer who is considering purchasing an EV, range anxiety is a real thing, even though the name may suggest it is psychological. Moreover, range anxiety has multiple dimensions. People use cars for three types of trips: Commute, excursions (i.e., short errands), and long trips. Let’s take a close look at each. Daily Commute…