. Electric railway journal . deg., the necessary changes in the alignment are madein the plain end outside of the limits of the tangenttracks, either by compounding the radii or by intro-ducing a reverse curve. The latter contingency, how-ever, is avoided if possible. It is expected that theselayouts will fulfill all requirements on the system. All switches are 100 ft. radius, except in those layoutsproviding for car clearance, in which case the switches. FIG. 4—B. R. T. STANDARD TRACK LAYOUT OF 9-IN. GIRDERRAIL CROSSOVER of the inner curve are of 150 ft. radius. In layoutswhere no car clearan
. Electric railway journal . deg., the necessary changes in the alignment are madein the plain end outside of the limits of the tangenttracks, either by compounding the radii or by intro-ducing a reverse curve. The latter contingency, how-ever, is avoided if possible. It is expected that theselayouts will fulfill all requirements on the system. All switches are 100 ft. radius, except in those layoutsproviding for car clearance, in which case the switches. FIG. 4—B. R. T. STANDARD TRACK LAYOUT OF 9-IN. GIRDERRAIL CROSSOVER of the inner curve are of 150 ft. radius. In layoutswhere no car clearance is provided the P. T. of theinner curve is as nearly as possible opposite that of theouter curve, whereby the distance between the tracksin the curve is kept down to a minimum. It is thewriters opinion that in such layouts the distance be-tween the tracks should not be more than is necessaryfor proper installation. This results both in a low first cost of pavement as well as minimum paving main-tenance because of the reduction of the paving areaas compared to a design with a bulge in the tongue switches and mates are of B. R. T. standardlengths as shown in Fig. 1. It will be noticed from 1-4
Size: 2625px × 952px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
