Originally Posted by joejack951
And your last statement is false if you are talking about using Kelly Drive at times other than morning rush hour (no experience there so I won't comment). I just previously stated that I when I lived in the area, I'd ride Kelly Drive during afternoon rush hour (and I can't imagine traffic would be any different between morning and afternoon but maybe it is) as it was safer IMO than using the MUP. Dodge enough dogs and children of oblivious parents and suddenly predictable traffic seems downright pleasureable.
How long ago did you live in Philadelphia? I ride that MUP at least once a day, at various hours, and it is generally fine for bicycling. The only time I've found it to be too crowded was during the daytime on weekends.
However, I will say that the stretch along the boathouses, which is not very long, is often crowded.
Also, if the Kelly side is too crowded, you can always take Martin Luther King (formerly West River Drive). That side of the river is never crowded.