I studied the rail-trail changes about 9 hours ago and here are the results of my study.

1).  The striped lines begin at 4th Street on the Caperton Trail and continue to the kiosk which is right before where the trail  turns into gravel.

2).  The stripped lines start at the beginning of Deckers Creek Trail and continue all the way to the intersection with Deckers Creek Rd.

3).  In general, the stripes are not properly centered in the trail, this leaves more room on one side of the trail than on the other side.  Also, the ends of the stripes are not always perpendicular to one another creating a wavy effect.

4).  The stripes are not trail appropriate, but rather are similar to the ones designated for highways.  There are approximately 10 feet long and about 4 inches wide.  (note: This is a just an estimate.)  The MUTCD recommends stripes that are 3 feet  long for shared-use paths ([Section 9B.01] or in the newest MUTCD [Section 9C.03]).

5).  The stripes are spaced approximately 10 feet apart from each  other.   The MUTCD recommends a 1-to-3 segment-to-gap ratio.   Given the present stripe size that would be 30 feet, however, if the trail was appropriately striped that would be 9 feet.

6).  The stripes are white, but both the MUTCD and the AASHTO recommend a "100-mm (4-inch) wide "yellow" center line stripe to separate opposite directions of travel (from AASHTO)".

Summary:  The biggest problem with the way the stripes were applied is that they are not appropriate stripes for a rail-trail and they are too close together based on their length.  No wonder people are complaining about getting dizzy.  Also, the intention of these stripes was to provide feedback to people in congested areas to stay to the right, not to make the rail-trail look like a very weird 70 mph freeway.  Furthermore, because the stripes weren't properly centered people tend to walk towards the center on the less wide side.   AASHTO provides a good explanation of what we wanted to accomplish:

A designer should consider a 100-mm (4-inch) wide yellow center line
stripe to separate opposite directions of travel. This stripe should be broken
where adequate passing sight distance exists, and solid in other
locations, or where passing by bicycles should be discouraged. This may
be particularly beneficial in the following circumstances: (1) for heavy
volumes of bicycles and/or other users, (2) on curves with restricted sight
distance, and (3) on unlighted paths where nighttime riding is expected.
White edge lines can also be very beneficial where bicycle traffic is expected
during early evening hours.
Did we accomplish this goal?  Based on my real-world experience of riding on the trail today I was appalled.  Because of BOPARC's attempt at reinventing the wheel, we have created a situation that actually makes it harder for a bicyclist to adequately identify travelers coming from the opposite direction because of the distraction that the striped lines create; i.e. this is a less safe situation.  Furthermore, it was my understanding that these stripes were only going to be placed in congested areas, and augmented by signage.

I am not sure how to finish this message, but I think this indicates some serious problems with the communication channels that exist in this City.  You would have thought that BOPARC would have know the appropriate application to use on a rail-trail, and they would have asked or have been told what application to use if they didn't know, but this certainly doesn't seem to be the case.  I am looking forward to learning more information about what went wrong from those who know, so we won't have a repeat of this in the future!

-Jonathan

Jonathan Rosenbaum wrote: 
Yes, this was presented to the TC on June 13, 2007.  I've attached the
file that describes the outcome of this TC meeting, look at (4).  I
haven't been on the rail trail since the change occurred.  Did they put
strips in congested areas as we recommended, or did they strip the whole
rail trail?

-Jonathan


Greg Good wrote:
  
Does anyone have a record that the BB recommended to the Traffic Commission a center line on the railtrail? I cannot find any such recommendation in my records, but perhaps I am missing some files.

Background: center lines have appeared and one citizen has been told that this was the call of the BB. I doubt this and I want the record to be clear.

Greg


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