Our club, the Fort Worth Thunderbirds, is in the process of preparing a new field due to similar overflight issues. We are on US Army Corps of Engineers park property that we lease. Larger models and jets, plus a few normal models were occasionally overflying parts of the park being used by non modelers, which is not a safe situation for ongoing model ops. We have 12-14 sanctioned events per year, including an IMAC event.

Jsu to review, the AMA safety Code concerning overflying people, vehicles and such:

B. RADIO CONTROL (RC)
1. All pilots shall avoid flying directly over unprotected people, vessels, vehicles or structures and shall avoid endangerment of life and property of others.

We were able to obtain some funding to help with the new site, about 2-3 miles due south of the original site. The club is investing about 50k of it's own funds, as well. The new site has ample clearance to avoid the previous problems.

Some flying sites that cannot operate safely without overflying highways and other people and such are going to have issues. Not every existing site can modify their ops enough to meet this safety standard.

Years ago, at the old Dallas R/C club field east of Dallas, the Texas State Highway Patrol would ticket modelers flying low over Highway 80, which was about 800-1000 feet south of the field.