A person who commutes 25 miles to work roundtrip by motor vehicle. Using the freeway at a speed limit of 55 mph during rush hour. Taking approximately 35 minutes to go door to door or 70 minutes round trip. They work 20 days each month. The car gets 25 miles to the gallon. The owner pays 90 dollars a month for insurance. Parking costs are 60 dollars a month. Gas is 3 dollars a gallon. The recommended cardio work out is 30 minutes. The motor will throw out 20lbs of carbon dioxide into the air during a full day of commuting.

A motorist's cost which also can be looked at here http://www.bts.gov/publications/nati...ble_03_14.html

$3.00 parking

$3.00 gas

$3.00 Insurance

$9.00 Daily total.

Time

60 minuets daily expense rounded to nearest hour

70 minutes commute time

40 minutes cardio work out

Total adjusted commute time is 170 minutes

A bicyclist's same commute will go 13 miles one way and 12 miles on the way home. It will take 70 minutes each way. They will park their bike next to the desk they occupy. A work out with targeted heart for at least 30 minutes will be included along with stretching out before hand. 20lbs of carbon and 1 gallon of gas won’t be produced for the cyclist to commute each full day. A savings of $9.00 a day by not driving a motor vehicle. At the end of the 150 minutes the cyclist will burn approximately 1,200 calories.

Time

140 minutes commute

10 minutes stretching

work out included

Total adjusted commute time 150 minutes

As you can see by the bicyclist's commute They will be faster by 20 minutes. Save $9.00 a day. A cardio work out is included while they commute on top of the 120 minutes they may or may not have a targeted heart rate. As an added bonus the cyclist will burn approximately 1,200 calories upon returning home.

I didn't bother to use maintenance to hard to figure out.

I am using estimates and rounding. I don't own a car but used two year old data from when I owned a car. Looking at the motorist's commute above in realistic terms.

When I parallel the freeway it is 13 miles one way. The freeway also veers north for about 3 blocks. So really it would be 26.5 miles. Time break down 10 minutes were used to transition from/to freeway to parking areas. Another 10 minutes to walk back and forth three blocks to a parking garage, and 15 minutes on the freeway. I think this figure is just about right. If you consider light traffic in rush hour both ways and the transition to parking areas having several stoplights.

Car data came from when I owned a car. Insurance most likely would be higher since I had all the deductions one could receive. Also the actual cost of gas in reality is much higher anywhere from 5 to 10 dollars higher depending on what sources you use. I have chosen to have the commuter own the car. I have chosen to start from the front door to the front door including stretching in the cardio work out, hence if you need to go to the gym that might be longer. Insurance is based on 30 calendar days not 20 working days. I used one work hour to pay for expenses that the motorists incurs during their commute which I am rounding up.

For the cylist I am using my own cost and experince.

Source for 1 gallon equals 20 lbs of carbon dioxide.

http://www.terrapass.com/terrablog/p...-carbon-d.html

Any other examples, thoughts, or comments?