. The Street railway journal . after aheavy fall of snow, that they were far from the stoppage and delays, the most serious which theroad had encountered for ten years, were caused by theaccumulators failing to meet the traffic demands. Besides,the expenses to maintain such a system are considerablyincreased. It was originally thought in Berlin that theaccumulator (mixed) system would cost 6 pf. per km ( per car mile) more than the overhead system, but itwas found that this figure had to be increased 40 per an extensive overhead system the use of accumulatorsi


. The Street railway journal . after aheavy fall of snow, that they were far from the stoppage and delays, the most serious which theroad had encountered for ten years, were caused by theaccumulators failing to meet the traffic demands. Besides,the expenses to maintain such a system are considerablyincreased. It was originally thought in Berlin that theaccumulator (mixed) system would cost 6 pf. per km ( per car mile) more than the overhead system, but itwas found that this figure had to be increased 40 per an extensive overhead system the use of accumulatorsis rather a disadvantage, as the weight of the battery ( on large cars) has to be transported along the entiredistance as a dead load. On several lines where the trafficis densest and delavs must be avoided at any cost, the cityauthorities have recentlv permitted the provisional in-stallation of the overhead trolley, where formally its usewas prohibited. Another change necessitated by the adoption of elec- *\Cffrt crete. FIG. 6.—TRACK CONSTRUCTION IN BLOCK PAVING


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Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884