I think safety first is good, but is that the best step to take first? Maybe require helmet use or stricter riding rules. If that doesn't work then i guess no more longboarders.

I have long boarded that trail in Provo canyon several times and I have found that there are parts that you would need to slow down for, but if you know what your doing you should cause no danger to anyone.
Of course if you go in the morning to the canyon all you will see is mothers in strollers. I know that if you were to go take a look around six maybe seven you would find that long boarders are a majority. I think that on the heavy slopes you could put a rail to help the elderly get up the hill and help the long boarders slow down safely. Over all long boarding is a great activity and thousands of collage students go every year up and down that canyon, why kick them off when you could find a way around it!

Something to consider is to set aside certain days and or times for different types of trail usage. If mothers are pushing strollers or senior citizens are out for a walk, even roller skates and bicycles may be a hazard. I visualize an established silhoutte or other type of easy identification for each activity. These can be placed at trail access points to designate the activity approved for that day or time. Or specific days and times for each activity can be scheduled on an annual basis and signs can be posted at vantage points along each trail to notify all users when their choice of activity is allowed and when it is not allowed. Whatever is done, there will obviously be an initial cost and a maintenance cost to be considered, but these suggestions offer a fair and equitable approach to the problem that will give all groups an opportunity to enjoy the trails. It appears that some study has already been done to evaluate what percentage of the time the trails are used by each catetory of user. These percentages could be used to determine how much time should be alloated to each type of usage.

It's a good thing they don't enforce this. I go long boarding here almost every day for hours and hours.

Ya thats the closest and longest place to longboard! That would also make my parents mad. We just need to make sure the people longboarding (such as me) are responsible. Know what places are usally crowded, (such as the Waterfall place)slow down get off your board walk past when its clear of people get back on and head down the hill.

Citing your little bit on minorities, I've noticed that black people seem to be in the minority in Utah as well, maybe we should repeal the 13th amendment, but you know, its up to congress to micromanage all the affairs of the loudest complainers