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We were interested in a recent article on the cost
Page 155
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of operating tippers. Is there a publication on costing of all types and sizes of commercial vehicles? And how does one allow for lost time such as that spent on repairs and a combination of other factors?
AThe article on the cost of operating tippers
appeared in COMMERCIAL MOTOR, February 3, in the series "Advice on Transport Problems" which, of course, is regularly concerned with costing and allied subjects. Additionally there is the annual publication COMMERCIAL MOTOR Tables of Operating Costs, available from George Newnes Ltd., Tower House. Southampton Street, London WC2, price 7s. postage paid.
Regarding "lost" time, the division of operating costs into standing costs and running costs does allow for calculation of total cost on both a time and a mileage basis. Thus having reduced the original annual standing cost (excise duty and insurance premium, etc.) to a total weekly cost this could be further broken down to an hourly cost and where terminal times were known to be excessive, allowance could be made by making an appropriate adjustment to the standing cost.
On a more general basis, however, the weekly figure for standing costs is derived by dividing the annual cost by 50 instead of 52 to allow for two weeks a year when the vehicle may be off the road for major overhaul or drivers' holidays.
In addition one of the groups of overhead costs concerns the auxiliary fleet. This is made up of the service van, breakdown recovery vehicles and spare vehicles used to replace service vehicles taken out of use in connection with a scheduled preventive maintenance scheme. Accordingly the combination of all these adjustments makes allowance for lost vehicle time virtually inevitable under modern operating conditions.