We purchased a home 5 years ago, at one time it was a property with one family and 2 houses, we purchased the deceased mother's home. We gave our neighbors an easement to use our driveway to get to their house, it about 1/2 from our house down a long dirt road. We have 2 small children. Friends of the son, continue to speed on our driveway, we have posted speed limit signs and children at play signs. Can we ban their teenage friends from using our driveway and make them walk 1 mile back to their house, or press trespassing charges if they do not follow the speed limit. WE have the limit posted at 12 mph and some go as fast as 50mph.