Landing helipad

The helipad at the landing is clearly marked people, yet trailers are
parked there. What is so hard to understand? We had a fire here this
weekend and the fire crew wouldn’t have been able to land there.
Fortunately, due to the hard work of others who voluntarily cleared and
marked a pad in the North end, the crew was able to land. What will it
take to make people understand simple rules are for the benefit of