Zia Wadud, Muhammad Adeel, Jillian Anable and Karen Lucas
This paper measures ‘excess’ car travel for its role in decarbonisation. On average, each English adult travels around 5,680 miles a year and emits 1,006 kg of CO2. However, the top 5% ‘excess’ car users travel 4.8 times and emit 5.7 times the national average. Four binary logistic regression analyses were used to model the probability that people with specified characteristics belong to the ‘excess’ mileage and emitter groups. Results indicated that gender, employment and socio-economic status, household income (higher quintiles), company car availability, residential location and local population density were highly significant correlates of this ‘excess’ travel mileage. Multiple car ownership, business travel by car, multiple international flight frequencies and ownership of larger and diesel cars were positively associated with excess travel and emissions. A mileage rationing scheme targeting the top 20% users can cut emissions substantially (by 26%) compared to targeting ‘excess’ (top 5%) users only.
- For further discussion see our report: Curbing excess: high energy consumption and the fair energy transition.
- And our associated blog article: How to tackle car inequalities fairly?
Wadud, Z., Adeel, M., Anable, J. and Lucas, K. 2022. A disaggregate analysis of ‘excess’ car travel and its role in decarbonisation. Transportation Research Part D: Transport and Environment, 109: 103377. doi: 10.1016/j.trd.2022.103377Opens in a new tab
Banner photo credit: Alireza Attari on Unsplash