its hard to get the system to work because joey's will take the time to sit through these and do the same things they have always done. Fensing of landing areas from the jump to the landing works pretty well. fensing a park works well too. Park Crews need to be given the power to give out citation or warning to people obstructing landings that will end up with them having to take the park course every time the repeat an offense. As much as they are buying a day pass and expecting service by the mountain to have a good time, they need to realise that the mountain is also trying to keep its users safe and that times change so the uphill skier having the right of way doesnt exactly apply to every place on the mountain. As someone posted before, approach the person and explain to them, if they have a problem with it tell them to go ask the information desk about it. You have to make them realize what they are doing.