. Railway mechanical engineer . r UM iEF OF .5 B0 -- —^» ,-- -5* -- ■■*— jOr 1X1! A -~~ E?= — -rrr — ... — :=~ ^ 20 18 16 +: 14 J 18 L. 10 a- 864 201816 14 t12 £ 10 L 8 o- mi i ALL FR Ifrr I _L _jj p :r CE IT _ .-- ■ , ——r^T _ -- ^ =- ^ ==s== —: sss — -= -- ~\- 6 4 1 Bad Order Cars as Reported Semi-Monthly, January 1, 1920, to September 15, 1921 OCTOBKR, 1921 RAILWAY MECHANICAL ENGINEER 637 excess of idle cars over unfilled orders for cars amounted to507,274; on September 8 this had decreased to 219, one-half of surplus, or about 118,000 cars were coalcarrying cars. Although the railro
. Railway mechanical engineer . r UM iEF OF .5 B0 -- —^» ,-- -5* -- ■■*— jOr 1X1! A -~~ E?= — -rrr — ... — :=~ ^ 20 18 16 +: 14 J 18 L. 10 a- 864 201816 14 t12 £ 10 L 8 o- mi i ALL FR Ifrr I _L _jj p :r CE IT _ .-- ■ , ——r^T _ -- ^ =- ^ ==s== —: sss — -= -- ~\- 6 4 1 Bad Order Cars as Reported Semi-Monthly, January 1, 1920, to September 15, 1921 OCTOBKR, 1921 RAILWAY MECHANICAL ENGINEER 637 excess of idle cars over unfilled orders for cars amounted to507,274; on September 8 this had decreased to 219, one-half of surplus, or about 118,000 cars were coalcarrying cars. Although the railroads have more box carsthan coal cars, the surplus of box,cars was only 62,000. Efficiency of Operation Affects Demand for Cars The demand for cars varies not only with the traffic, butalso with the performance that is made by each individualcar, as measured by the ton miles of traffic handled over a RATIO CARS IN REVENUESERVICE TO WEEKLY ILOADINGS ,,700,000. 1, 1,500,000 5 1, 600,000 700,000 600,000 500,000 400,000 300,000 100,000 vv m CARS ACTUALLY INREVENUE SERVICE
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
