. Electric railway journal . 9 2>A 3448 2275 68 1908 00 155 advanced with 2, iy> and 1 from 100 up to102, 103 and 108 per cent respectively. With sevenstops per mile the percentage is increased from 139 upto 155 per cent, and with nine stops per mile from 155up to 174 per cent. In like manner Table VII shows what can be donewith a lightweight safety car at three differentrates of acceleration and braking and four differentnumbers of stops. The annual cost is estimated to be $, or 62per cent, more at 2% and three stops permile than at lx/2
. Electric railway journal . 9 2>A 3448 2275 68 1908 00 155 advanced with 2, iy> and 1 from 100 up to102, 103 and 108 per cent respectively. With sevenstops per mile the percentage is increased from 139 upto 155 per cent, and with nine stops per mile from 155up to 174 per cent. In like manner Table VII shows what can be donewith a lightweight safety car at three differentrates of acceleration and braking and four differentnumbers of stops. The annual cost is estimated to be $, or 62per cent, more at 2% and three stops permile than at lx/2 and nine stops per mile. 20 ELECTRIC RAILWAY JOURNAL Vol 51, No. 1 500b_ 6004002000 — Time to walk differentdistanceswhen walking at q speed 5 feet per second which per hour 20262422i-20 20 40 60 80 100 120 140 160 180 200Seconds 300 30260x28Q)260Q:.26-240s. 2451220^ * 20 Assumed: 1000-ft Run, Constant Schedule20 lb. per Ton Friction% PS. ScheduleSeven Seconds Stop. Geared to Maximum Speed of Accelerating and Braking of Stop 5 Seconds. Friction Ponvr cn20 lb. per Ton. Coasting 25lb. per Ton 50 26 26 ts24 t22?20 £\t16 4 i1210 30 40Ti m e in 3 4 5Stops per FIG. 34 Assumed; 1000-ft. Run 201b. per Ton Flat FrictionI^ and Braking 22 schedule io \ 2«e t V§—w — •il RG) . Ci 1 Aft / 1 1 11 -t- 1 11 1 1 2 3 4 5Stops per 2d£262:24T5 22£20 16 « 14 120 aI00x 60 5 6040 26242220I 16 o 12<D 10 10 *4 of Accelerating and Braking 36-ton Carl3/4 on ZS-ton ^20-ton Car To ij. !£. i) 1 i of friction Power-on, 20It? per TonCoasting, 25 lb. per Ton6 Stops per Mile i i i i i i i i i X 10 . 20 30 40 50 6
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
