. Electric railway journal . ing current and gasoline carpractice. These figures were prepared by Mr. Cole in ac-cordance with actual service conditions, and were embodied COMPARATIVE COSTS PER CAR-MILE OF , , AND GASO-LINE CAR INTERURBAN SERVICE. * * General expenses $.0330 $.0330 $.0310 Maintenance of way and buildings 0127 .0127 .0111 Maintenance and equipment 0249 -0459 .0265 Transportation expenses 0625 .0679 .0589 Cost of power 0385 .0458 .0145 Total $.1717 $.2023 $.1420 Average daily mileage, 150 miles to 210 miles. tAverage daily mileage, 180 miles to 198 mil


. Electric railway journal . ing current and gasoline carpractice. These figures were prepared by Mr. Cole in ac-cordance with actual service conditions, and were embodied COMPARATIVE COSTS PER CAR-MILE OF , , AND GASO-LINE CAR INTERURBAN SERVICE. * * General expenses $.0330 $.0330 $.0310 Maintenance of way and buildings 0127 .0127 .0111 Maintenance and equipment 0249 -0459 .0265 Transportation expenses 0625 .0679 .0589 Cost of power 0385 .0458 .0145 Total $.1717 $.2023 $.1420 Average daily mileage, 150 miles to 210 miles. tAverage daily mileage, 180 miles to 198 miles on 34-mile lines. in a report made by him on a railroad project. Mr. Colefound that on a certain line a steam locomotive with onecar, seating 60 passengers, was operated for cents percar mile; a direct-current interurban motor car, seating 44people, for cents per car-mile; an alternating-currentinterurban motor car, seating 40 people, for centsper car-mile; and a gasoline car, seating 25 people, for % / Operating - cr flouse /- Operation of 44-Passenger Electric Car with Alternating-Current System cents per car-mile. The distribution of the expenses in eachcase is shown in the accompanying tables. It should be stated, of course, that the seating capacitiesof the cars mentioned vary greatly. However, this is not animportant point, for in many instances the traffic factor, orthe ratio of seats to passengers, is too low to justify thelarger cars. Unless the traffic factor, by which I mean the average percentage of car seats occupied per day, is at least42 per cent, it is cheaper to operate smaller cars during theday and use extras for the hours of heavy service. According to the figures given in the tables, it is apparentthat gasoline cars are the most desirable from the stand-point of lower costs for the initial investment, maintenance OPERATING COST PER CAR-MILE OF STEAM LOCOMOTIVE ANDONE CAR. Fuel for locomotive $.1037 Repairs to locomotive 0270


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