Fig. 65 would not look so complex if colored ink were available to show in contrast the express passenger trains, the work trains, etc. It is suggested that the reader observe the key at the top of Fig. 65 and then follow a few of the various trains from one end of the line to the other, taking into consideration the fact that this is a single-track railroad and that trains must pass at the turnouts which are available. To schedule a passenger train such as that leaving Tyrone at 12:25 p. m. is no simple proposition on such a crowded railroad as this.

In rapid-transit work in large cities a time-distance chart in the general scheme of Fig. 65 is almost essential if methods of giving high-speed service to the people are to be studied. These time-distance charts can be made on so large a scale that two horizontal lines may be used to indicate the stations, with the lines spaced a distance apart to show to scale the actual length of each station platform. Time-

TIME CHARTS

lero

190O

Rank

^ New York

2 Penn.

3 Illinois

4 Ohio

5 Missouri

6 Texas

7 Mass.

8 Indiana

9 Michigan

10 Iowa

11 Georgia

12 Kentucky !3 Wisconsin

14 Tennessee

15 N. Carolina

16 New Jersey

17 Virginia IS Alabaoaa

19 Minnesota

20 Mississippi

21 California

22 Kansas

23 Louisiana

24 S. Carolina

25 Arkansas

26 Maryland

27 Nebraska 2a W. Virginia

29 Connecticut

30 Maine

31 Colorado

32 Florida