Originally Posted by
Lightning Pilot
At 15 mph, you are closing with them at 22 fps if they are stationary. That means you should announce your pass an absolute minimum of 44 feet away, though I think 66 would be better. If they are walking, your closure rate is then about 17.6 fps., meaning your announcement should be not less than 35 feet away. "Just do the math."
That's some lungs. You recommendation is to announce your presence roughly 2-3 car length back and on a busy day that's a lot of yelling. A bit schizo?