urban
O&L
1898
O&L
1930
OA&E
e-1913
OA&E
e-1915
OA&E
e-1919
Osh
varv
O&LC
1898
O&M
1874
O&M
1884
O&NW
1889
OE
e-1907
OE
e-1908
OE
e-1912
OPS
e-1935
OR
1888
OR
1897
OR
1899
OS
1899
Okla
e-1923
Okla
e-1930
Okla
e-1942
OC
1884
OC
1890
O&SL
1900
Oneida
e-1911
ON
1957
ON
1960
ON
1964
ON
1970
ON
1970
ON
1987
OB
1889
OCT
1914
O&W
1910
OE
e-1909
OE
e-1917
OE
e-1929
OR&N
1900
OR&N
1900
OR&N
1909
OR&N
1910
OSL
1900
O-WR&N
1912
OWP
e-1906
O-K
e-1921
OE
1894
O&H
e-1910
O&H
e-1913
O&H
e-1915
O&G
1897
P&IN
1927
PC
1897
PE
e-1907
PE
e-1911
PE
e-1911
PE
e-1924
PE
e-1925
PE
e-1930
PE
e-1937
PGE
1925
PGE
1927
PGE
1927
PGE
1953
PGE
1956
PGE
1957
PGE
1959
PGE
1960
PGE
1964
PGE
1970
PGE
hors
PNT
e-1922
PNT
e-1924
PR&N
1913
PSL
1890
FCP
1963
PLZ&W
1914
Pal
1894
PHT
e-1935
an
1910
an
1947
Pecos
1899
Pecos
1900
Pen
1918
Pen
e-1909
Pen
e-1910
Pen
e-1915
Pen
e-1922
Pen
e-1932
PC
1968
PC
1969
PC
1969
POCL
e-1931
PO
e-1923
PCo
1895
PCo
1900
PCo
1913
PCo
1915
PRR
1874
PRR
1874
PRR
1875
PRR
1903
PRR
1913
PRR
1913
PRR
1922
PRR
1926
PRR
1927
PRR
1933
PRR
1938
PRR
1949
PRR
1956
PRR
1958
PRR
1958
PRR
1964
PRR
1966
PRR
FEDE
P-RSL
1934
P-RSL
1957
P-RSL
1963
P-RSL
1963
P-RSL
1969
P-RSL
1970
P&PU
1907
P&PU
1917
PD&E
1894
PM
1908
PM
1916
PM
1925
PM
1938
PM
1945
PM
1946
PM
1947
PM
1932
P&SR
e-1928
P&E
e-1915
P&LVT
e-1902
P&R
1889
P&R
1893
P&R
1905
P&R
1913
P&R
beth
P&WCT
e-1918
P&WCT
e-1923
P&W
e-1924
P&W
e-1926
PR&NE
1893
PR&NE
1893
PR&NE
1898
PST
e-1941
PW&B
1888
P&R+SR
1891
P&R+SR
1891
P&R+SR
1907
P&N
e-1916
P&N
e-1938
P&N
e-1947
PAL
1874
PAL
1889
Phst
1898
P&CS
1885
P&LE
1885
P&LE
1885
P&LE
1897
P&LE
1914
P&LE
1925
P&LE
1926
P&LE
1934
P&LE
1957
P&LE
195x
P&S
1936
P&WV
1927
P&W
1893
P&W
1894
P&W
ar.j
PB&LE
1898
PC&SL
1879
PM&B
e-1923
Pitt
e-1952
PS&N
1905
PS&N
1915
PS&N
1932
PS&LE
1895
PS&C
1906
PW&S
1916
Plant
1891
Plant
1891
Plant
1891
Plant
1895
Plant
1896
Plant
1899
Plant
1901
PJM&NY
1900
PR&A+PR&WC
1892
P&O
1882
P&O
1887
P&R
1873
P&R
1885
P&R
1889
P&R
1898
P&RF
1896
P&RF
1903
P&RF
1904
PEPCO
e-1926
PE&E
1914
PRT
e-1951
PRT
e-1951
P-LI
e-1921
P-LI
e-1925
P&E
1897
P&NW
1910
PEI
1892
PEI
1906
P&FN
1885
PP&CI
1878
P&W
1887
PW&B
1879
PW&B
1881
P&NE
1881
PSCNH
e-1938
PSCNJ
e-1904
PSCNJ
e-1912
PSCNJ
e-1916
PUE
e-1919
PSE
1905
PSE
e-1926
QA&P
1912
Q&LSJ
1895
Q&LSJ
1896
Q&LSJ
1904
Q&LSJ
1904
QC
1903
QC
1921
QC
1926
QC
1932
QC
1957
QC
195x
QM&C
1894
QM&S
1922
QMO&O
1879
QNS&L
1975
QO
1926
QO
1927
QRL&P
e-1909
QRL&P
e-1926
Q&C
1884
Q&C
1893
Q&C
1900
Q&C
1902
Q&C
1907
Q&C
1916
QA
1902
QO&KC
1903
QO&KC
1908
Rapid
e-1900
RR
1918
RR
1926
RDG
1926
RDG
1941
RDG
195x
RN
1909
RN
1918
R&S
1865
RI
1916
RI
e-1903
R&A
1882
R&D
1891
R&D
1891
R&D
1891
R&D
1892
R&D
1893
RF&P
1893
RF&P
1894
RF&P
1913
RF&P
1925
RF&P
1955
RF&P
1960
RYR&C
1874
RGW
1889
RGW
1895
RGW
1897
RGW
1899
R-S
1922
R&N
e-1924
R&ER
e-1905
R&M
e-1918
R&P
1881
R&P
1883
R&SB
e-1906
R&S
e-1925
CRRT
e-1938
RS&E
e-1911
RI&P
1900
RIS
e-1912
RIS
e-1922
R&I
e-1914
R&I
e-1922
RT&CS
e-1915
RRV
1911
RW&O
1887
RW&O
1890
RW&O
1893
RW&O
1893
RF&B
1886
R&B
1851
RUT
1897
RUT
1900
RUT
1902
RUT
1904
RUT
1905
RUT
1907
RUT
1912
RUT
1926
RUT
1928
RUT
1936
RUT
1940
RUT
1941
RUT
1951
RUT
1953
Inter-
urban