True Logan and I wasn't trying to sound ungrateful. Just that there are ways and yes, many tracks don't have fence all the way around, Most I've seen have been built and rebuilt over time. And many do sections at a time.
The effort is appreciated. If they can find a way to build 50-100 ft of catch fence a year, It is still a heck of improvement in each instance..
A mechanic once asked me what's the most important thing on a car? I said Brakes. 100% correct he said.
I consider catch fence as a set of brakes
Anything can make things Go. Stopping calamity is way more important.