In recent months there has been an upsurge of organized mountain biking groups attempting to gain access to sections of National Scenic Trails where they are currently prohibited. These trails - or in some cases, sections of these trails - were not designed nor built to be shared with mountain bikes. Additionally, fast-moving bicyclists have the potential to disturb an otherwise tranquil hiking experience and a hiker’s connection with the natural environment. In worst case scenarios, mountain bike traffic may even drive hikers off the trail, forcing them to go elsewhere to enjoy the outdoors.
Part of this drive is to keep cyclists out of the national parks but the wording of "sudden surge in attacks on hiking trails" makes me worry that a push may go beyond if successful. My personal thoughts are, why not. Why not have hiking only trails. Hikers don't liked being buzzed by on the trails, I get it, just like how we don't like getting buzzed by on the roads. A little different in that a car could kill where a mountain biker might just break a few bones if an accident may happen... either way, not a desired outcome.
There are so many options out there for new trails that I find no reason there can't be ones for hiking and some for cyclists when popularity, or design do not fit well for sharing. I believe Hall Ranch in Boulder has a hiking only section and does it bother the cyclists? I don't believe so, at least not me.
The key here is new trail construction.