Finding: The costs to society as a whole, are estimated at over 3 times the benefits.
The current proposals are just a list of proposals with no attempt to say if this is of net benefit to society as a whole. Using my costing experience, I have tried to detail these, with assumptions made. Some estimates will be wide of the mark, whilst other elements will be absent entirely. However,
- This is the only publicly available attempt to evaluate if the initiative is of net benefit to society as a whole.
- It provides a framework to compare and contrast various elements of the intiative.
- When better estimates are available, then the estimates can be updated.
The Costs and Benefits
When I did my degree in Economics it was Cost-Benefit analysis. Furthermore, I spend more of my salaried beancounting time on costs rather than benefits. So the costs come first, despite current coventions.
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| Costs and benefits of the Transport initiative in Manchester for Society as a whole. |
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All Costs in £m, unless otherwise stated |
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Costs |
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Note |
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£m |
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A |
Investment cost |
296 |
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B |
Lost time – switchers |
125 |
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C |
Lost time – car users |
56 |
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D |
Subsidy Costs |
350 |
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E |
Congestion Charge |
174 |
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F |
Existing public transport users |
80 |
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G |
Switching to non-CO2 emitters |
20 |
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H |
Buying Hydro-electric |
13 |
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TOTAL COSTS |
1,114 |
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Benefits |
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Note |
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£m |
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M |
Existing public transport users |
135 |
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N |
Reduced pollution health benefits |
50 |
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P |
More Exercise health benefits |
10 |
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Q |
Reduced CO2 impact |
10 |
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R |
Conjestion Charge Net Revenue |
143 |
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TOTAL BENEFITS |
348 |
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| TOTAL COSTS OVER BENEFITS |
766 |
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| Notes on Costs 1 of 2 |
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| A |
Investment cost |
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Total Expenditure |
2800 |
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Less congestion Scheme |
-313 |
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Net Expenditure |
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2487 |
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Loan |
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1200 |
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Annual repayment on loan |
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143 |
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(Congestion charge income £174m less £31m operating costs) |
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Therefore, annual cost of |
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total capital expenditure |
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296 |
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| B |
Lost time – switchers from cars to public transport |
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This is assuming that people moving from cars to |
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public transport will spend more time on their total journeys. |
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Average time per day of 15 minutes (normal service) |
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No of people switching assumed to be 200,000, travelling 200 days per year |
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(some 50,000 of whom are car passengers) |
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Extra time travelling – normal |
10 |
million hours |
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Extra time travelling – unexpected |
5 |
million hours |
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Time unpredicatability |
5 |
million hours |
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Loss of convenience |
5 |
million hours equivalent |
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(enduring the elements, antisocial behaviour, crowding etc.) |
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Cost at £5 per hour |
125 |
£m |
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Lost time for increased unpredicatability of public transport |
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People will leave earlier due to the time inconsistancy of time, especially of buses. |
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Also due to crowding at peak time of trams |
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| C |
Lost time – car users |
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Hours p.a. |
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800,000 road users for 189 days, adding 3 minutes per day. |
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7,560,000 |
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150,000 car users spending 2 minutes a day to pay congestion charge |
945,000 |
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Payment of fines is time consuming. 1.73m per year |
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30 minutes of lost time and 60 minutes for stress |
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2,595,000 |
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Total Hours per annum |
11,100,000 |
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Total Cost £m @ £5 per hr |
56 |
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| Notes on Costs 2 of 2 |
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| D |
Subsidy Costs – additional |
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School Buses |
30 |
600 at £50k per annum |
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Buses new routes |
100 |
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Buses – Higher Spec |
50 |
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Buses – more buses |
50 |
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Tram system |
50 |
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Maint & Security |
20 |
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Ticketing Systems and PR |
20 |
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Trains – extra subsidy |
30 |
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TOTAL |
350 |
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| F |
Existing public transport users – Costs |
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Increased costs for switching from Train to Tram |
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– 50,000 people a day for 200 days per year. Extra £1 day |
10 |
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Increased costs for switching from Bus to Tram |
10 |
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Increased costs for buses |
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50 |
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Increased costs of trains |
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10 |
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TOTAL |
80 |
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| H |
Extra cost for Hydro over cheapest |
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Additional cost per kWh |
0.03 |
£/kWh |
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Additional cost per MWh |
30 |
£/MWh |
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Average load |
50 |
MW |
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Cost per year |
£13.15 |
£m |
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Notes on Benefits |
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M |
Existing public transport users – Benefits |
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Time saved on journeys |
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Total Hours p.a. |
25,000,000 |
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Reduced time for unexpected delays |
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Total Hours p.a. |
2,000,000 |
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Total Cost @ £5 |
£135 |
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N |
Reduced pollution health benefits |
A guess |
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P |
More Exercise health benefits |
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A guess |
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Q |
Environmental Benefit |
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A guess |
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Clearly there will be some health benefits from reducing pollution by getting |
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dirty buses off the road, from people walking further, and a lower net CO2 |
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emissions. |
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Inituitively the health benefits of more exercise have to be offset against |
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the consquences catching colds & flu through being in crowded places and |
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enduring the worst of Manchester’s cool, damp climate. |
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R |
Conjestion Charge Net Revenue |
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Total Revenue |
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£174 |
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Operating Costs |
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-£31 |
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Net Revenue |
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£143 |
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Posted by Kevin VS Marshall (Manicbeancounter) on 23/09/2008
https://manicbeancounter.com/2008/09/23/the-costs-and-the-benefits-of-tif/