travel

67 posts
Several problems with stacked bar charts, as demonstrated by a Delta chart designer

In the Trifecta Checkup (link), I like to see the Question and the Visual work well together. Sometimes, you have a nice message but you just pick the wrong Visual. An example is the following stacked column chart, used in an investor presentation by Delta. From what I can tell, the five types of aircraft are divided into RJ (regional jet) and others (perhaps, larger jets). With each of those...

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The personal data you generate when you book a flight

Every time we book a flight, a Passenger Name Record is generated and saved by an outdated system, which links to private travel data. Paz Pena, Leil-Zahra Mortada and Rose Regina Lawrence for the Tactical Technology Collective outline that data and describe the consequences of the system failing to keep data private. But although the PNR system was originally designed to facilitate the sharing of information rather than the protection...

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Light entertainment: the difference in power between nations is not statistically significant

As proved by the following chart:  

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A gem among the snowpack of Olympics data journalism

It's not often I come across a piece of data journalism that pleases me so much. Here it is, the "Happy 700" article by Washington Post is amazing.   When data journalism and dataviz are done right, the designers have made good decisions. Here are some of the key elements that make this article work: (1) Unique The topic is timely but timeliness heightens both the demand and supply of...

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Two nice examples of interactivity

Janie on Twitter pointed me to this South China Morning Post graphic showing off the mighty train line just launched between north China and London (!) Scrolling down the page simulates the train ride from origin to destination. Pictures of key regions are shown on the left column, as well as some statistics and other related information. The interactivity has a clear purpose: facilitating cross-reference between two chart forms. The...

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Choosing the right metric reveals the story behind the subway mess in NYC

I forgot who sent this chart to me - it may have been a Twitter follower. The person complained that the following chart exaggerated how much trouble the New York mass transit system (MTA) has been facing in 2017, because of the choice of the vertical axis limits. This chart is vintage Excel, using Excel defaults. I find this style ugly and uninviting. But the chart does contain some good...

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Sorting out what’s meaningful and what’s not

A few weeks ago, the New York Times Upshot team published a set of charts exploring the relationship between school quality, home prices and commute times in different regions of the country. The following is the chart for the New York/New Jersey region. (The article and complete data visualization is here.) This chart is primarily a scatter plot of home prices against school quality, which is represented by average test...

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Context, color and animation: a nice effort

What made this infographic from South Carolina Ports is the choice of contextual comparisons. The simple animation also helps. (Original here if the animated gif isn't working.) The random colors mean nothing but they did make me look at the graphic in the first place.

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Attractive, interactive graphic challenges lazy readers

The New York Times spent a lot of effort making a nice interactive graphical feature to accompany their story about Uber's attempt to manipulate its drivers. The article is here. Below is a static screenshot of one of the graphics. The illustrative map at the bottom is exquisite. It has Uber cars driving around, it has passengers waiting at street corners, the cars pick up passengers, new passengers appear, etc....

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Denver outspends everyone on this

Someone at the Wall Street Journal noticed that Denver's transit agency has outspent other top transit agencies, after accounting for number of rides -- and by a huge margin. But the accompanying graphic conspires against the journalist. For one thing, Denver is at the bottom of the page. Denver's two bars do not stand out in any way. New York's transit system dwarfs everyone else in both number of rides...

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