Answer :

Westinghouse's air brakes, helped in increase in number of railroads built in the country during second industrial revolution.

The railroad evolved into a means for businesses to convey goods across the nation to one another, deliver raw materials to manufacturing facilities, and deliver finished products to customers during second industrial revolution.

Corporations grew as a consequence of the expanding industries, which also contributed to the expansion of the railway network. The expansion of the railroad system was advantageous for the economy and labor thanks to innovations like the telegraph, which provided information about the location of trains to prevent accidents.

The expansion of railroads during second industrial revolution was considered as one of the major drivers of economic growth.

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