400bhp
Guru
This isn't that straightforward for me and a number of assumptions are needed.
Time:
1. Bicycle - assuming normal route taken, then 35 mins average one way. Plus additional fannying around putting on cycle clothes (10 mins each commute) plus additional shower taken when get home (10 mins). Total cycle time per day = 100 minutes
2. Tram - door to door average around 40 mins. Total time taken by tram daily = 80 minutes
3. Car. I don't own one anymore but if I did, then assuming I left home and work around the same time as I cycle in and assuming I went for the cheaper car aprk option, then would take me 25 mins drive in, 40 mins drive home + 15 mins each way walking. Total time taken by car daily = 95 minutes
**important point**. The range of times of my cycle commute by factors outside my control (wind/rain/congestion) is no more than 15 minutes. Variance is probably 3 minutes. The variance of tram commuting is likely to be about 15 minutes, and car, perhaps 20 minutes.
Cost:
1. Bicycle - I have a spreadsheet that I've been running since Jan11 that records money spent, miles covered etc. My cycling pence per mile is about 10p. This ignores bicycle depreciation (which is in any case around £30 a year per bike). Average commute is 19 mile round trip, and so cost is £1.90 per day
2. Tram Return journey is £6.00
3.0 Car - Previous car averaged 16mpg, so rough cost to work was about £5.70 round trip. Plus car parking another £3.50. Total £9.20 per day
Annual saving v tram (assuming 230 days at work) = £943. Note. I could buy an annual tram pass for £950, then savings would be £513
Annual saving v car = £1,679. Note. Not quite comparing like with like here as don't take into account wear and tear on car and greater depreciation on car.
Time:
1. Bicycle - assuming normal route taken, then 35 mins average one way. Plus additional fannying around putting on cycle clothes (10 mins each commute) plus additional shower taken when get home (10 mins). Total cycle time per day = 100 minutes
2. Tram - door to door average around 40 mins. Total time taken by tram daily = 80 minutes
3. Car. I don't own one anymore but if I did, then assuming I left home and work around the same time as I cycle in and assuming I went for the cheaper car aprk option, then would take me 25 mins drive in, 40 mins drive home + 15 mins each way walking. Total time taken by car daily = 95 minutes
**important point**. The range of times of my cycle commute by factors outside my control (wind/rain/congestion) is no more than 15 minutes. Variance is probably 3 minutes. The variance of tram commuting is likely to be about 15 minutes, and car, perhaps 20 minutes.
Cost:
1. Bicycle - I have a spreadsheet that I've been running since Jan11 that records money spent, miles covered etc. My cycling pence per mile is about 10p. This ignores bicycle depreciation (which is in any case around £30 a year per bike). Average commute is 19 mile round trip, and so cost is £1.90 per day
2. Tram Return journey is £6.00
3.0 Car - Previous car averaged 16mpg, so rough cost to work was about £5.70 round trip. Plus car parking another £3.50. Total £9.20 per day
Annual saving v tram (assuming 230 days at work) = £943. Note. I could buy an annual tram pass for £950, then savings would be £513
Annual saving v car = £1,679. Note. Not quite comparing like with like here as don't take into account wear and tear on car and greater depreciation on car.