#MakeoverMonday | Week 40 | 2019: London Population Predictions

For week 40 I chose a rich dataset with a simple viz showing population predictions for London.

The original viz looks like this:

https://media.data.world/Iz4UmqNeRlmouvVKnBXx_Screen%20Shot%202019-09-28%20at%207.23.28%20pm.png

What works well:

• A simple bar chart showing the predicted population growth for London
• Tooltips provide exact values
• Simple color

What could be improved:

• Without any context, this chart is not easy to understand.
  • What does 'Number' mean?
  • Why is there a color legend for a single color?
  • What is actual versus prediction?
  • Where are these numbers from?
  • What year were these numbers from?
• So what? What does any of this mean and why does it matter?

What I did:

• What stood out for me was the City of London borough which doesn't really have room for more people.
• While all other boroughs will grow, this one won't and to me that's such a stark contrast that I focused my viz on it.
• Went with an animation which doesn't work on Tableau Public, but it does in this gif below...
• Viz here