We are planning to purchase a piece of property that has been used commercially in the past. It has a large gravel/old pavement lot that joins the road. Since there really hasn't been an owner nearby, it has been used by anyone and everyone to park vehicles and such...and do who knows what. We'd like to put something up to deter this practice. It looks like it would be about 120-150 foot long...I haven't actually measured it yet. I've looked at the prefab concrete curbs, free standing metal "crowd barriers," etc, which seem to be cost prohibitive. I don't think driving fence posts would be practical in the pavement/rock. Do any of you have a good idea for some sort of barrier or fence that would be relatively inexpensive?