All I can tell you is take the emergence maps with a
HUGE grain of salt because in my experience with two broods, you can have huge numbers in one area and absolutely nothing a mile or so down the road because they re-emerge where they emerged last. Migration is NOT their strong suit.
In my case with the last emergence which was Brood X, my property was inundated, the noise was deafening and at all of the closest places I fish... dead silence and no cicadas.
True story:
Back in 2004 during one Brood X emergence there were NO cicadas at my former residence but a gazillion at a local Enterprise Car Rental I used for business about 5 miles away. After dropping off a car one day I grabbed 3 cicadas, put them on my passenger seat and dove back home.
I sat them on my tying bench where they politely stayed put and I fabricated imitations using sheet black foam, red plastic bead eyes and orange tinted Crystal Flash for a wing. After posing for me, I released the cicadas in my back yard.
BUT - Even though I had my imitations ready, I NEVER encountered a single cicada at any place I fished despite what the emergence maps showed...
Moral of the story, keep your creations simple in case the same thing happens to you.