Show stopping Stopp lne fait fast train trains before attaining a speed of miles an hour first of allive all we must know how bow soon after receiving warning of danger a train of 3 io tons running a mile in thirty six seconds can be stopped it Is estimated that it if running at CO miles per hour with the full braking weight of the train utilized and the rails in the most favorably favo rabla a condition this train could be brought to a full stop in COO feet at 80 miles per hour in acm feet at 90 miles per hour hou r in 0 2035 feet and finally at miles per hour in 2 fl f L these figures at once establish the fact that under the best possible conditions the track must mu st be kept clear of all obstruction for at least 2500 feet in advance of a train running at fit the highest limit but wo we must estimate the clearance for the worst conditions such as slippery rails foggy weather and unfavorable grades the personal equation of the must also bo be dri a train covering feet each second won d would it be too much to ask that the receive his big warning three ofil of a mile mno before ho lie must halt the difficulties of arranging for the passage of trains of this character are manifest we are not speaking of special trains but rather of regular trains ru running as frequently as may be desired it should bo remembered that in a two hour run the fastest trains of today would require a leeway of an hour and slower ones would have bave to start proportionately earlier or ho be passed on the ibe way theodore N X ely in cri A liners |