Material for park road

Have an extended driveway that splits into three roads. longest in several hundred feet. It is an old park and had an asphalt/gravel surface. I had a layer of crush and run put on 3 years ago and there are quite a few large potholes. I was told that I could not use crush and run on top of the old layer of crush and run. I have a large brick factory nearby that sells brick chips for driveways and I also have a local company that sells gravel. I can’t afford asphalt or concrete. Any suggestions on what material to use for durability and cost?