Skip to main content

Will NC Turnpike Shields be purple?

Will this be what Toll NC 540 shields look like once the Triangle Expressway opens?  It certainly could be.

Bob Malme in a post to a regional transportation forum noticed that on a map of the now under construction Triangle Expressway thatthe NC 147 TOLL and NC 540 TOLL shields were purple.  Any non-toll NC routes were the traditional black background.  Bob references the 2009 NC Turnpike Annual Report which shows a map of the TriEx on page 17.

This would confirm a note I received informing me that at an unrelated meeting to the Turnpike, an NCDOT official said that local communities couldn't use purple for wayfinding projects because it is reserved for the upcoming toll roads.


The reason for purple?  The FHWA Manual of Uniform Traffic Control Devices (MUTCD) requires it.  From page 10 of the 2009 Edition of the MUTCD:
J. Purple—lanes restricted to use only by vehicles with registered electronic toll collection (ETC)
accounts
The Triangle Expressway will be completely tolled electronically.  Most likely a 'TOLL' banner will be included above the 540 and 147 shields.

So of course, the question is - What do you all think?  Do you like the use of purple in a state highway shield?  Have better suggestions? Your own prototype you'd rather suggest?  Post and send away....

Comments

Brian said…
As far as I can see in Section 2F.03 par. 1, purple is only supposed to be used as the background for the ETC information. To quote forthwith:

Standard:
01 Use of the color purple on any sign shall comply with the provisions of Sections 1A.12 and 2A.10. Except as provided in Sections 2F.12 and 2F.16, purple as a background color shall be used only when the information associated with the appropriate ETC account is displayed on that portion of the sign. The background color of the remaining portion of such signs shall comply with the provisions of Sections 1A.12 and 2A.10 as appropriate for a regulatory, warning, or guide sign. Purple shall not be used as a background color to display a destination, action message, or other legend that is not a display of the requirement for all vehicles to have a registered ETC account.


Judging from the wording solely in this paragraph, it would seem to me that purple in the route markers would be a violation. But consider that the design of state route markers are simply left to states; there could be some ambiguity.
Anonymous said…
I love purple, it's my favorite color. But somehow I have visions of two and three year old shields where the purple has faded really badly. Wonder if the technology exists to make the colors last.
llnesinthesand said…
Let it be written that if North Carolina decides to use the purple shield, it will be referred to as the "barney shield".
Bob Malme said…
I've placed a zoomed up version of the NCTA map showing only the Triangle Expressway portion here:
http://www.duke.edu/~rmalme/triexmap09.html
I'll plan to link it to my Future Interstates (and Toll Roads) site.
roadfro said…
If the toll road is completely electronically tolled, the purple background on the route shield could maybe be allowed under the MUTCD.

Since it's a state route marker, however, NC can probably get away with using purple anyway.

Popular posts from this blog

California State Route 38

California State Route 38 is a fifty-nine-mile State Highway located entirety in San Bernardino County and a component of the Rim of the World Highway.  California State Route 38 begins at California State Route 18 at Bear Valley Dam of the San Bernardino Mountains and follows an easterly course on the north shore of Big Bear Lake.  California State Route 38 briefly multiplexes California State Route 18 near Baldwin Lake and branches east towards the 8,443-foot-high Onyx Summit.  From Onyx Summit the routing of California State Route 38 reverses course following a largely westward path through the San Bernardino Mountains towards a terminus at Interstate 10 in Redlands.   Pictured as the blog cover is California State Route 38 at Onyx Summit the day it opened to traffic on August 12th, 1961.   Part 1; the history of California State Route 38 California State Route 38 (CA 38) is generally considered to be the back way through the San Bernardino Mountains to Big Bear Lake of Bear Valley

The original alignment of California State Route 33 in Firebaugh

Firebaugh is a city located on the San Joaquin River of western Fresno County.  Firebaugh is one of the oldest American communities in San Joaquin Valley having been settled as the location of Firebaugh's Ferry in 1854.  Traditionally Firebaugh has been served by California State Route 33 which was one of the original Sign State Routes announced during August 1934.  In modern times California State Route 33 is aligned through Firebaugh on N Street.  Originally California State Route 33 headed southbound passed through Firebaugh via; N Street, 8th Street, O Street, 12th Street, Nees Avenue and Washoe Avenue.  The blog cover depicts early California State Route 33 near Firebaugh crossing over a one-lane canal bridge.  The image below is from the 1935 Division of Highways Map of Fresno County which depicts the original alignment of California State Route 33 in Firebaugh. Part 1; the history of California State Route 33 in Firebaugh The community of Firebaugh is named in honor of Andr

Driving the Watkins Glen Historic Road Course - New York

  Situated at the south end of Seneca Lake in the Finger Lakes region of Upstate New York, Watkins Glen is well known for wineries along Seneca Lake and waterfalls at Watkins Glen State Park . But one thing that gives the town much renown is its connection to the world of auto racing. The raceway at Watkins Glen Internationa l holds a number of big races every year, such as Six Hours at the Glen and the NASCAR Cup Series . The history of auto racing at Watkins Glen starts during the 1940s when the race followed a course on local roads and also through the streets of downtown Watkins Glen. It's a course that you can follow today, preferably at a more moderate speed than the auto racers of yore raced at. Let's explore the history of the original course, how it came to by and why it is no more. Organized races through the village of Watkins Glen and surrounding roads were first proposed and started by Cameron R. Argetsinger in 1948, marking the beginning of post-war sports car