The Front Range Sub is still run by track warrants in 2025 (meaning there are no signals), but BNSF has added PTC. This means track warrants are issued and acknowledged via computer. Consequently, there is very minimal radio traffic on the Front Range Sub. This northbound will not be meeting anything at Broomfield, which means it'll be another 40 miles before it might meet another train (at Longs Peak).
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