81

D.—l

ance of way due to grades and curves is the result. To this must be added about 50 per cent, for the effect of the pusher on cost of maintenance of way (see Wellington, page 620), and we have:—

Table X I—Cost of Maintenance of Way per Train Mile.

The last column of figures is obtained by prorating them to the preceding column from the average of all New Zealand roads, 22-15 d. Multiplying the cost in pence per train mile from the last column of Table XL by the train mileage for each case gives the total costs per annum of maintenance of way shown in Table XII.

Table XII.—Annual Cost of Maintenance of Way in Pounds.

Carriages and Wagons. The cost per train mile for. carriages and wagons, New Zealand Bail ways Statement for 1901, was 4-75 d. The cost in repairs for carriages and wagons, due to 600 degrees of curvature, is 120 per cent, of its cost per train mile, and for 26-4 ft. rise and fall it is 4 per cent, of the same (see Wellington). If the average rise and fall of the New Zealand roads is 23 ft. per mile and the curvature 40 degrees per mile, the cost on lines A, B, C, CI, E, and F will be the figures in the last column of Table XIII., which are proportional to those in the preceding column.

Table XIII. —Cost of Repairs of Carriages and Wagons per Train Mile.

Multiplying the cost in pence per train mile from the last column of Table XIII. by the train mileage for each case gives the total cost of carriages and wagons per annum shown in Table XIV. 14—D. 1.

Rise ani Curvatui 1 Fall and :e per Mile. Percentages of Increased Cost per Train Mile for Maintenance of Way. Line. 1 + Total per Cent, of Increase. Maintenance of Way Cost per Train Mile in Pence. Feet. j Degrees. Rise and Fall. Curvature. Assistant Engine. New Zealand railways ... A ... 23 70 73 91 89 100 114 400 43-6 770 900 1130 900 900 3-58 10-90 11-37 14-18 13-86 15-58 17-76 4-53 4-94 8-72 10-20 12-80 10-20 10-20 50 50 50 50 50 50 1-0811 1-6584 1-7009 1-7438 1-7666 1-7578 1-7796 22-15 33-95 34-82 35-70 36-17 3600 36-40 B ... C CI ... E ... F

500 Trains per Annum. 700 Trains pe: Annum. 1,000 Trains per Annum. Line. Train Miles. Cost. Train Miles. Cost. Train Miles. Cost. A ... 8,540 9,800 10,560 10,850 10,600 10,575 1,208 1,423 1,572 1,635 1,590 1,604 11,950 13,710 14,790 15,200 14,840 14,800 1,692 1,990 2,200 2,290 2,226 2,245 17,080 19,600 21,120 21,700 21,200 21,150 2,417 2,841 3,142 3,270 3,180 3,208 B ... C ... 01... E ... F ...

Line. Rise and Fall, ! Curvature, , Feet Degrees per Mile. per Mile. Rise and „ Fall. Curvature. Percentage of Cost. 1 + Total per leni increase. Cost per Train Mile in Pence. New Zealand lines A B 23 70 73 91 89 100 114 400 43-6 77-0 900 113-0 90-0 900 3-49 10-61 11-07 13-80 13-50 15-16 17-29 8-00 8-72 15-40 18-00 22-60 1800 1800 1-1149 1-1933 1-2647 1-3180 1-3610 1-3316 1-3529 4-75 5-08 5-39 5-61 5-80 5-67 5-77 C CI E F