I rode on the Schuykill river trail in the Fairmount Park section of Philadelphia on Saturday. I normally ride in the street in rural south Jersey with cars passing me at 50+ mph. Riding the MUP was far scarier and more dangerous. Here is why.
Others would pass by me two abreast(oncoming). There really is only enough room for two cyclists NOT three. Not one single person made any attempt to move over. Twice I ended up being forced off the trail onto the grass to avoid an accident.
People would ride quickly around sharp blind turns often going over the yellow line. Not one single person appeared to be slowing down for blind turns or blind sections that pass under bridges.
Runners and walkers for the most part held their line, but occasionally there was a person that would drift to the left.
There were probably about a dozen potential incidents. I escaped unscathed mostly due to dumb luck and being very vigilant not that anyone else appeared to be anything but clueless.