The amount of CO2 prevented from entering the atmosphere is calculated by applying DEFRA's suggested greenhouse gas (GHG) conversion factors to the number of miles logged. This works as follows:
Number of Miles Cycled x Amount of CO2 Emitted Per Mile Driven = Total CO2 Saved
(miles) (kgCO2e/mile or kgCO2e/passenger/mile) (kgCO2e)
The previous mode of transport collected from each participant allows us to allocate the correct conversion factor based on past travel behaviour i.e. whether it was by a large petrol car, bus, train, etc.
The result is that given a necessary amount of assumptions, we have applied a robust method for calculating CO2 emissions saved.
To see DEFRA's GHG conversion factors please click here.
There are a number of varying factors which can affect how much effort you exert when cycling, and hence the amount of calories burnt. Such variables include body mass index, terrain, wind speed and relative direction. Following the research conducted by Dr. Edward Coyle of University of Texas, Austin, we have opted to calculate calories burnt based upon the factor of average cycling speed. This is assumed to be 12mph and equates to 28.5 calories per mile.
Distance Cycled x Average Calories Burnt Per Mile
= Total Calories Burnt
(miles) (calories/mile) (calories)
The calculation for money saved is based upon cycling as an alternative to commuting by a petrol driven car and equates to approximately 44 pence per mile as per HMRC Travel mileage and fuel allowances from 2011/12.
Several years ago the UK Government developed its green travel plan. Amongst measures to increase cycling as a commuter option were a number of tax and VAT benefits for employees, including purchasing a bicycle and cycling equipment tax-free. It's a win-win scenario as both employees and employers gain from this strategy. For more information about the scheme and how to set one up click here.
The Cycle to Work Guarantee is a voluntary initiative from the Department for Transport, challenging businesses to become cycle friendly employers by making it easy for staff to cycle to and from work.
By signing up, your business can signal its commitment
by providing the facilities and incentives to help your
workforce become healthier, greener and more
Click here for more information.
The Top Organisations are based on CO2 savings recorded inthe current calendar month. The Top Individuals are based on the number of miles cycled in the current calendar month.
At the beginning of each month the league tables are re-set to zero. CO2savings and mileage recorded in the new month then produce the new league tables. Re-setting the league tables each month, rather than using continuous cumulative data, allows all users to compete for top league positions,regardless of how long they have been using the site.
Historic trip data can still be viewed by the user via their own profile page.