MUTCD 11th Edition - Bicycle Shared Lane Markings

[Scsmedia]

During Sunday's Councilor/Candidate Bike Ride, the question came up regarding the placement of Sharrows (Shared Lane Markings).

There are some streets in Portland where they have apparently been placed on the very right side of the lane.

This is incorrect and we should report these locations so that they get fixed and make sure city staff is aware of the correct placement of Sharrows.

A – Shared-lane markings on a two-way street with parking on one side

* The center of the shared lane marking should be a minimum of 12 ft from face of curb or edge of pavement 

** The center of the shared lane marking should be a minimum of 4 ft from face of curb or edge of pavement

Guidance: 

07 If used in a shared lane with on-street parallel parking, shared-lane markings should be placed so that the centers of the markings are a minimum of 12 feet from the face of the curb, or from the edge of the pavement where there is no curb. 

08 If used on a street without on-street parking that has an outside travel lane that is less than 14 feet wide, shared-lane markings should be placed so that the centers of the markings are a minimum of 4 feet from the face of the curb, or from the edge of the pavement where there is no curb.

https://mutcd.fhwa.dot.gov/kno_11th_Edition.htm  Part 9 - Traffic Control for Bicycle Facilities,  Pages 55 and 56

Steven Scharf

207-415-4662

SCSM...@aol.com

[Winston Lumpkins]

There are a couple of other items brought up on the ride that are examples of execution not matching standards, either national or local; I think initially a short email pointing that out to staff might be the first step- for this item we need locations for misplaced sharrows. 

If anyone knows of any locations, let me know so I can include them in said email.

Note:
I concede that sharrows are controversial, and may not improve safety (though, since in most municipalities and states dooring accidents aren't recorded in crash data since the car isn't moving we don't really know) however, the point is to keep bikes out of the door zone on shared streets: they aren't going to do that if the standards Steven quotes aren't followed.

--
You received this message because you are subscribed to the Google Groups "Portland Bicycle and Pedestrian Advisory Committee" group.
To unsubscribe from this group and stop receiving emails from it, send an email to PBPAC+un...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/PBPAC/1938013545.14644421.1727753557235%40mail.yahoo.com.

[Dustin Pillow]

I found one on St Johns going southbound passed the plaza. I can't seem to upload my photo without Google giving me a kickback...

To view this discussion on the web visit https://groups.google.com/d/msgid/PBPAC/CABaJc7xgPtyhxGi9is_XMJaS%3DCw6i0jZNJy467xwTWQ4LrNuBQ%40mail.gmail.com.

[Winston Lumpkins]

Feel free to just email the PBPAC chair account the picture, or just reply to me with it- might work better than the google group: 

pbpac...@gmail.com

~Winston

Winston Lumpkins IV (he/him/his)

Past Chair, Portland Bicycle & Pedestrian Advisory Committee
https://www.portlandbikeped.org/

winston....@gmail.com
207-408-1508

• 
  

To view this discussion on the web visit https://groups.google.com/d/msgid/PBPAC/CAK-Xrv3h8XNhTek3vL1taREpH_O1_ds4mYHwTpGqg13FysF46A%40mail.gmail.com.

[John Brooking]

Thanks for this thread, Steven. I don't know off the top of my head of examples of incorrect sharrow placement, but I do want to add that another function of sharrows, in my opinion, is the education for motorists of where they should expect to see bicyclists riding, and that it is legal.

Beyond sharrows, I will say that one of my perennial peeves about Portland bike lanes is the lack of guidance about when they start and stop. There is usually no signage, and sometimes not even any dashing. Sometimes you just see the stencils start, and then at some point they cease, with no signs, and solid white lines the entire time. (That said, I notice the city recently removed parking along Brighton Avenue near USM, which had previously been door zone lanes, and the discontinuation of the bike lane outbound at Dartmouth has better striping than before. So good job there.)

John Brooking

Cyclist, Cycling Educator, Technologist

https://www.facebook.com/CyclingSavvy4ME/, http://cyclingsavvy.org

To view this discussion on the web visit https://groups.google.com/d/msgid/PBPAC/CABaJc7xgPtyhxGi9is_XMJaS%3DCw6i0jZNJy467xwTWQ4LrNuBQ%40mail.gmail.com.