526 COMMERCE YEARBOOK 
awaiting repair point clearly to the fact that the carriers are now 
fairly well equipped, and are among the causes of the greater efficiency 
in handling traffic. ; 
Table 17.—Percentage of Unserviceable Freight Cars and Locomotives 
Percentage of unserviceable freight cars 
Percentage of unserviceable locomotives 
Month 
Monthly av- 
[20:7 TR 
Isnuary... cccosnins 
February. _......... 
Morph. cosnssnennnin 
4) v1 
Tay a eicinmceaaaan 
MWe. ces mmncacmanen 
TY pms 
AUgUSE. Lc meaanan 
September. .ocoenoa. 
October. .couacaoan.. 
November. ....--.- 
December. ooo... 
21 1922 | 1923 | 1924 | 1025 | 1921 
13.1 
8.8 
9.8 
0.8 
ta 
6 
4 
F 
12.8 
13.5 
14.0 
13.8 
oa 
8.0 
9.0 
B.8 
B.{ 
~ 
7.8 
8. 7 
a] 
i.¢ 
79 
23.7 
4.8 
4.81 
2 
1922 
24.9 
23.4 
37 
73.4 
2.* 
1923 
21. 4 
25. 6 
24.8 
24. 4 
23.6 
wd 
Ala! 
Ly 
8 
1924 | 1925 
18.7 
18.8 
19.0 
19.2 
9.1 
t 
€ 
: 
17.9 
18.9 
18.9 
9.1 
£5 
0 
I 
7! 
i. 
17. 8 
168.9 
Source: Compiled by Bureau of Railway Economics from Interstate Commerce Commission Reports 
Railway Construction. 
The total track mileage (including first, second, third, and other 
track) built during 1925 was 1,354 miles, comparing with 1,114 miles 
in 1924, 1,176 miles in 1923, and practically double that for each of 
the three years preceding 1923. The mileage of new first track, 
representing extension of lines, was greater, in 1925 than in 1923 or 
1924, and accounted for almost half of the total new mileage. The 
Railway Age records the following new track (in miles) built in the 
United States: 
Zant 
[004 vrmmn amma wa wm a as 
898 ooo. 
First 
rack 
Second 
track 
Third 
track 
Fourth 
rack or 
more 
578.95 | 456.12 | 51.22 | 25.88 
643. 53 B82, 46 18. 86 9.65 
Total 
1,113.77 
1. 354. 40 
Of the first track built in 1925, Florida, with 99 miles, again 
accounted for the greatest mileage, while Texas ranked second with 
about 2 miles less. Over one-third of the second trackage constructed 
was in Florida, while over one-eighth was in South Carolina. 
The total length of line abandoned in 1925 was 606 miles, as com- 
pared witly. 693 miles during 1924, 518 in 1923, and 677 in 1922. 
The Interstate Commerce Commission authorized abandonment of 
77 additional miles in 1925, 
Aside from trackage, there was a considerable amount of construc- 
tion during the year designed to assure better operating facilities, 
including terminal iraprovements. both passenger and freight, grade