Calculate your vehicles miles traveled (VMT) reduction.
To start, determine daily round trips reduced:
Formula: (Number of employees x baseline AVR) (Number of employees x current AVR) = daily round trips reduced
Example: If you have 200 employees, a baseline AVR of 1.2 and a current AVR of 1.5:
(200 x 1.2) (200 x 1.5) = 34 roundtrips reduced per day
Next, to calculate VMT reduced:
Formula: (number of roundtrips/day) x (2 trips/day) x (average trip length) x (number of work days/year)
Example: (34 trips/day) x 2 x 19 (average commute trip length in Southern California) x 260 = 335,920
driving miles reduced per year
Calculate greenhouse gas emissions reduced
Formula: (VMT reduced) x 0.919 pounds per mile (the approximate amount of C02 eliminated per mile not driven)
Example: 335,920 x 0.919 = 308,710 pounds of greenhouse gas reduced
To convert to tons reduced:
308,710 ÷ 2,000 (pounds per ton) = 154 tons of greenhouse gas emissions reduced in one year
Spread the word!
How many tons of CO2 did you help reduce? Don’t just tuck the number away in your files make it part of your outreach to demonstrate how a small change like ridesharing can have a big impact on our environment.