Operating cost assessment:
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Berliet TR 280 IN assessing the probable cost operating the Berliet TR280, road tested last week, it is possible to use updated cost factors which will be found in the 1975 version of CM Tables of Operating Costs, to be published shortly.
As usual, licences, wages, rent and rates, and insurance in the standing costs and lubricants, tyres and maintenance in the running costs are based on the figures Which Will be found in the Cost Tables.
The interest-on-capital factor has been based on the combined prices of the tractive unit and trailer tested (£12,54l and £2,787) £15,428, given in last week's report, calculated at 12 per cent per annum. Fuel cost per mile has been based on 47p a gallon and an average of 6.5mpg was attained on the test. Depreciation 'has been calculated on the price of the outfit less a set of tyres at £1,478 and 10 per cent for residual value : (£15,428 less £1,543, less tyres £1,478)—£12,407 divided by a vehicle mileage life of 240,000, to give 5.I7p a mile. The :tyre cost factor is based on a tyre life of 60,000 miles. Thus the following cost table can be compiled.
On this basis the —5.)---fte operating cost per mile for a vehicle averaging 1,000 miles a week would be 33.92p (C127.35 divided by 1,000, or 12.74p, plus a running cast of 21.18p). This, of course, takes no account of overheads. In that case, adding 20 per cent to cover these, as in CM Tables, would give an all-in cost of 40.7Ip a mile. Ji