But we have noticed lately that the crowdsourced effort has become a victim of its own success. A lack of criteria that defines usable bike facilities in the "bicycling layer" is diluting its original purpose
-To show a map of navigable routes for bicyclists. Take for example the current map of the Wissahickon which has erased the Forbidden drive as a multi-use path. Two attempts to correct this issue have been rejected by Google, citing conflicting information. The result is incorrect mapping and bicycling directions that avoid Forbidden Drive.
The current Google Map shows a huge gap where the Forbidden Drive trail was along the creek. Meanwhile the serpentine, permit-only mountain bike/hiking trail on the west bank is being highlighted a bicycle route.