. Electric railway journal . * Electric CHICAGO & MILWAUKEE METERS—DIAGRAM OF MONTHLYFIGURES ON MILEAGE AND POWER 976 ELECTRIC RAILWAY JOURNAL [VOL. XLV, NO. 21 c 5 4 —— ilile Av u. a Caril ile Last Half Last Half Last Half Last Half Last Half Last Half ofJan. ofFeb. of Feb. ofilar. ofMar. ofApr. Electric CHICAGO & MILWAUKEE METERS—POWER CONSUMPTIONPER CAR-MILE IN AMPERE-HOURS ANDKILOWATT-HOURS stated, the difficulty of obtaining reliable comparativerecords. Possible Economies in Different Classes The decreases in ampere-hours and kilowatt-hoursper car-mile for
. Electric railway journal . * Electric CHICAGO & MILWAUKEE METERS—DIAGRAM OF MONTHLYFIGURES ON MILEAGE AND POWER 976 ELECTRIC RAILWAY JOURNAL [VOL. XLV, NO. 21 c 5 4 —— ilile Av u. a Caril ile Last Half Last Half Last Half Last Half Last Half Last Half ofJan. ofFeb. of Feb. ofilar. ofMar. ofApr. Electric CHICAGO & MILWAUKEE METERS—POWER CONSUMPTIONPER CAR-MILE IN AMPERE-HOURS ANDKILOWATT-HOURS stated, the difficulty of obtaining reliable comparativerecords. Possible Economies in Different Classes The decreases in ampere-hours and kilowatt-hoursper car-mile for the system are also shown in graphform. The power savings in the different classes, how-ever, varied quite widely. For instance, the A-2M classrequired considerably more power per mile than theA-130 class. This was because the multiple-unit serv-ice was operated only during the peak-traffic , the savings in the multiple-unit classes werenot as consistent as those for the other classes, due to. CHICAGO & MILWAUKEE METERS—VIEW OF METERMOUNTED OVER MOTORMANS CAB weather and other greatly varying demands on thisservice. Class A-130, representing about 30 per cent of thetotal mileage for the system, showed a decrease of 6per cent at the end of the three-month period, whileClass C-130, representing almost as much mileage,showed a mean decrease of about 14 per cent. Mil-waukee city cars in Class G-500 showed the greatestconsistent decrease of all the classes, with a 20 per centsaving. However, none of these decreases should becompared with the results from the last half of Janu-ary, without taking into consideration that a veryappreciable saving was realized immediately after themen were ordered to read the meters. The averagemotorman has considerable latent efficiency in him thatis bound to show as soon as there is a check on hisefforts. The possibilities of saving by switching differenttypes of cars in different services have also beenbrought out. For instan
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