2021-10-28 Redistricting Commission Agenda Packet

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make that the active tool, I can go down on my map and click an area to zoom into. So here you can see down in the map, I've drawn a little red box. I'm using this zoom tool to zoom in to that area I've identified in the red box `cause I'm looking at seeing if there's changes we can make in the Ko Olina area, to just slightly change this boundary and bring our deviations down. So I go ahead and click that box and you can see it zooms my map window to the extent of that box. So now we can see even more closely that boundary between CD and CD2. The other thing we see is now we can see the outlines of the block boundaries. I'm going to go back a minute. If you look in the tools in the red box up above it says, display level block. That means that each of those polygons, those areas in light black, each of those is a census block. I'm going to go back one slide. When we were zoomed out, notice there weren't as many of those black areas, black polygons. That's because if we look up above at display level, there it was set to the block group. That's were the census has a hierarchy of census tracts, census block groups, and the most detailed, the level we need to work at, are the census blocks. So it will automatically change that as you zoom in and out so that you see the appropriate geography. But this is the geography census blocks that we need to look at when we're assigning blocks to districts. And that's what we're going to do next because that's this whole set of redistricting tools and I'm going to show you several of them. We mentioned that Congressional District 1 has about 2,000 more people than 2, which means we need to take some of these census blocks and assign them then to Census District 2 so we can get those populations near or equal and bring down that total deviation. So you can see a whole set of tools there are. First of all, under district, I've set it to Congressional 2. Any blocks that I identify, and I'll show you how to identify them in a moment, I want to make them part of CD2, Congressional District 2. So let's look at the first one. Oh, before we do, we should remember, as we are redistricting, there are a whole set of redistricting guidelines that the Commission will be following and that members of the public, if they are creating plans, should also follow where practicable. We've taked about these in other presentations. Here's a quick summary of not only the total deviation, which is the main number we look at, but also compactness, that they're contiguous and that they preserve socio-economic communities. So with that, let's start assigning some census blocks. The first tool I'm going to show you is just basically a click tool. You click on a block, and it will change that block to the district that you've choosen. I've choosen District 2 up above Congressional 2 so on the map, I've pointed an arrow. That's where I'm going to go click using this tool and it will just be a single click. We can see the color changes so that census block has now been assigned to Congressional District 2. And if we look down below, we see the deviation percent, there was a small number of people in that census block that brought the population a little more in the balance instead of 0.6, we've brought our total deviation down to 0.56. So that's one of the tools, I want to kind of move across and show you some of the other ones, so I'm going to do this in pieces. The next tool, which is actually one that I use alot, is the select by rectangle. So in this case, rather than just a single click, you're going to do a double-click. The first click will be the upper corner of the rectangle. The second click will be lower corner of the 19