Railroads 3917 Railroads a separate officer, responsible only to the head of his particular department, being in charge of the work on a division. The de- partmental plan of organization is in com- mon use in England. The New York Central is one of the few roads using it in America. The traffic department may be in charge of a vice-president in charge of traffic or of a general traffic manager. Its work is divided into two parts—passenger and freight. These respective departments may be in charge of freight and passenger traffic managers or of general freight and passenger agents. Most roads have also a general purchasing depart- ment. There may also be found a real estate department, relief department and as an ad- junct to the engineering department, a valu- ation department. Railroad Consolidation.—The consolida- tion ot railroads has frequently been a sub- ject of governmental or public concern. The Sherman Act, passed in 1890, intended to prevent the formation of 'trusts' operating in restraint of trade, was early made to apply to railroads. Indeed, one of the most famous cases fought under the Act was the Northern Securities case of 1902 in which a United States Supreme Court decision re- quired the severance of common control of tie Northern Pacific by the Great Northern and the Union Pacific. This decision, par- ticularly as amplified by the Clayton Act of 1914, which has elaborate provisions relating to railroads, proved an effective damper on railroad consolidations. The Transportation Act of 1920, however, gave voice to a more liberal viewpoint. Provisions were included in it intended to encourage the voluntary consolidation of railroads. The effect desired was a limited number of systems of approxi- mately equal earning power so arranged as to assure, insofar as possible the maintenance of former routes of traffic and competition of service. Under the terms of the Act, dif- ferentiation was made between consolida- tions effected by merger of corporate iden- tity on the one hand, and acquisition by lease, by purchase of stock, or by operating agreement, on the other. In December, 1929, the Commission published its final plan call- ing for the creation of 19 systems, or 12, including the United States mileage of the Canadian lines. For later history, see UNITED STATES HISTORY. Railroad Rates.—Under the terms of the Interstate Commerce Act, as amended by the Transportation Act of 1920, the fixing of the general level of freight rates and passen- ger fares is in th? hands of the Interstate Commerce Commission rather than of the traffic departments of the railroads. The Interstate Commerce Commission is required to establish a level of rates which will yield a fair return upon the aggregate value of the railway property held for and used in the service of transportation. The Commission, * besides having jurisdiction over the general level of rates, also has the power of review- ing or prescribing rate relationships and even individual rates. Freight Traffic and Rates.—The transpor- tation of freight is much the most important function of American railroads. On only a very few roads of any importance, such as the New York, New Haven & Hartford, and the Long Island, do the receipts from pas- senger traffic even approximate the receipts from freight traffic. In 1939 operating rev- enues totaled $3,095,004,000, of which $3,- 244445,000 was from freight. The adjust- ment of freight rates is far more complicated than that of passenger fares. Whether it pays better to carry a small amount of freight at a high rate or a larger amount at a low rate can be determined only through experimentation with each item of freight. Each item must yield at least enough to cover the additional expense to the company aris- ing from the haulage of that particular freight. At the same time the freight rate must not be so high as to handicap the pro- ducer in competition with producers served by other means of transportation. With freight of low value per unit of bulk, the volume will usually expand markedly under conditions of cheap transportation. A very moderate rate per ton per mile will prevent coal from being carried 500 m. from the pit; an equal rate on silk goods represents a neg- ligible increase in the value of such goods. High-grade goods may bear a. far higher rate than low-grade goods without appre- ciable diminution in the amount offered for carriage. In American policy, accordingly, rates are graduated roughly in proportion to the value of the goods carried, the lowest- grade goods often barely paying the cost of carriage, while the high-grade goods pay in addition a part of the fixed charges, and pre- sumably something toward net profits. The policy of graduating rates according to the value of the commodities, and making such rates as will move any given traffic, has been one of the chief causes of the extraordinary development of the freight business of the American railroads, and of the marked re-