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Pre-1985 |
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This design was
utilized on all the guide signs. The only signs that used shields
were if the exit was to an interstate highway. Some of these type can
still be seen along I-79, I-80, PA 28, PA
60, and US
422. |
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This was the exit only design prior to the
change to the modern guide sign design. Note how the shields are
outlined, which began to be used in the 1980s. Before that, only
Interstate shields were put on guide signs with other routes listed as
"US" and "PA." This sign could be seen at Exit
5B until its replacement in 2001. |
The newer signs, as regulated by the Manual on Uniform Traffic Control Devices,
are seen more now. PennDOT has been replacing the signs when construction is completed.
Below are some of the more unusual expressway signs seen
in Pennsylvania.
1985-Present |
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This design can be seen on PA 60 from Exit 1 to
Exit 8. What is also more unusual is that the lighting for the
signs is from the top instead of the bottom. The only state highways
that have their exits numbered are PA 28, PA 29 (South Cross Valley
Expressway), PA 60, PA 309 (Crossvalley
Expressway), PA 378, and PA 581. |
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This design is used on the mainline Turnpike
only. It lists the name of the
interchange and then the usual interchange information. The old signs
were designed like the pre-1980s ones. However, the Turnpike did not
replace their signage until the early 1990s. The New Stanton exit
signs were not replaced until 2000. |
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This design is used on the I-279 HOV lanes.
Since the lanes
are
so close to the mainline, PennDOT chose to designate the exits with
the HOV symbol. Some of the signs use just the symbol in the corner,
some say "Exit(s)," and some say "Restricted
Lane Exit." |
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The Port
Authority of Allegheny County operates three busways aside from the HOV
lane on I-279 and I-579. These rust colored guide signs can be
seen at the entrances. |
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Emergency detour signs guide motorists
off the expressway and back to the nearest available expressway
entrance. They are used only during those occasions when the
expressway must be closed due to accidents, flooding, or other emergency
conditions. The signs to the left represent some of the
color-coded routes. |
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Emergency cellular telephone signs inform
motorists of the telephone number which will connect
them with area emergency services. The sign with *11 are used
along the Pennsylvania
Turnpike, and signs with *12 used to be posted along expressways in the Pittsburgh area.
The third sign appears on Philadelphia area expressways to advise
travelers the number to use to call SmarTraveler for traffic conditions. |
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