PennDOT is soliciting comments and prioritization input from all of us, we should all go to http://penndotstc.metroquest.com/, and tell them where bike lanes need improvement, etc.. And share the comments you make here, please.
Their survey does not force you to answer every question; you could go straight to section 4, add a bicycle icon and comment to the map, then click Next and Submit, and be done.
Some comments I added there included:
need good bike connection across the Glenwood Bridge to connect Duck Hollow Trail & Hazelwood Trail on right (north) bank of the Mon with GAP trail on left (south) bank. Model it on the Hot Metal Bridge, downstream.
Add a bicycle path (separated from traffic by a curb or jersey barrier or plastic delineators) from the Ft Pitt Bridge to Coraopolis (where it would connect with the Montour Trail). A teenage girl on a bicycle was struck by a car and died on route 51 a few months ago (not on this section, but at the Sewickley Bridge, downstream from here).