═════════════════════════════╤════════╤════════╤════════
Operating Co. │ No. │ No. │ Total
│Stations│ Units │Capacity
─────────────────────────────┼────────┼────────┼────────
Chicago Railways Co. │ 10│ 32│ 80,000
Chicago City Railway │ 7│ 26│ 53,400
Calumet & So. Chicago Railway│ 3│ 9│ 9,000
Commonwealth Edison Co. │ 12│ 33│ 105,000
Elevated R. R. │ 3│ 8│ 9,000
├────────┼────────┼────────
Totals │ 35│ 108│ 256,400
─────────────────────────────┴────────┴────────┴────────
[Illustration: LATEST TYPE OF 3000-KW., 60-CYCLE SYNCHRONOUS CONVERTERS
INSTALLED BY COMMONWEALTH EDISON COMPANY, FOR CHICAGO SURFACE AND
ELEVATED LINES]
The Northwestern Elevated R. R. has on order a complete 2000-kw.
automatic substation from the General Electric Co. to be installed at
Buena Park. This is the first application of the automatic to
Metropolitan Rapid Transit service.
_Distribution_
Energy for elevated train operation is fed to the third-rail shoes at
600 volts. The third rail is of the top contact unprotected A.S.C.E.
rail varying in size from 40 to 80 lb.
_Rolling Stock_
The rolling stock equipment includes a total of 1008 two-motor cars
weighing from 22 to 35 tons each, the latter figure representing the
more recent types of cars. The distribution of these cars among the four
divisions is as follows:
No. Motor
Cars
Northwestern Elevated 302
Chicago & Oak Park Elev. 84
Metropolitan West Side Elev. 253
South Side Elev. 369
─────────
Total 1,008
In addition to the motor cars there are available for use on the several
divisions about 660 coaches which can be used as trailers.
Supplemental to the regular elevated service the Chicago Elevated System
affords entrance to the business section of the city to the Chicago,
North Shore & Milwaukee R. R. an affiliated line operating a high speed
interurban service between Chicago and Milwaukee. This line enters from
the north operating over the Northwestern division at Evanston.
Connection is also made at Des Plaines at the end of the Garfield Park
Branch with the Chicago, Aurora & Elgin R. R., a high-speed third-rail
line reaching Aurora, Elgin, Batavia, Geneva and other points west.
These trains also enter the city running over the Metropolitan West Side
tracks into the loop district.
[Illustration: 4-CAR TRAIN ON NORTHWESTERN ELEVATED EQUIPPED WITH GE-243
MOTORS]
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