Buses have been running in cities for hundreds of years, serving the needs of people without means to procure private transportation. In the American age of the automobile, the bus has come to be defined as transportation for people who can’t afford a car. For many decades, riding the bus was just as much a symbol of class status as being chauffeured around in a limousine. But recently, in many of the hipper urban sectors of the country, the bus has been making a comeback. Some young people are choosing the city over the suburbs, and have begun integrating their urban lives with urban transit systems.

The following map shows just how far someone would have to walk to find a bus stop in Seattle. Much of the city is within 250 meters of a bus stop, including all of downtown – and almost all of the city is within 500 meters. There are only 2 places within the city limits that are more than a kilometer from the nearest stop, and both of them are urban parks that are also unaccessible by car. Of course this map says nothing about the convenience of the busline servicing the stop, or the greater design of the bus network, or its integration with services outside the city limits. All it says is that if one needs a bus, there’s probably one nearby.

City of Seattle Bus Accessibility

Not to be used for navigation or trip planning.

Data Sources: King County GIS Data Portal
Projection: NAD83 HARN State Plane Washington North
Tools: ArcGIS

The western Gulf of Mexico is a central hub of the US oil and gas industry. Every major company has an office in Houston, and many cities along the coast of Louisiana are devoted to the refining and exploration sectors. Each node of the petroleum network is connected by a pipeline – and that includes the offshore drilling platforms. Not all of them have oil rushing through them – many have been capped off and abandoned. It’s unlikely that anyone will ever come into contact with one of these pipelines, even with a drag-net: most of them are buried in the soft sediments at the bottom of the sea. Even so, it’s amazing what kind of rat’s nest exists just out of reach from our beaches.

The eastern Gulf is relatively pipeline free – only two lonesome lines extend into that region.

Oil and Gas Pipelines in the Gulf of Mexico

Like a spider on drugs.

Data Sources: US Bureau of Energy Management, US National Atlas
Projection: Lambert Conformal Conic, customized to fit the mapping extent (WGS-84)
Tools: QGIS

Election seasons are always a great source of data, especially when the presidency is on the line. The following map of election results by county is not meant to show which candidate won Texas (that would be Mitt Romney). Nor is this map meant to show which candidate won each county. Instead, this map shows the relative strengths and weaknesses of each candidate. Obama did well in urban counties, while Romney was more popular in exurban and rural counties. The majority of Texas’ population now resides in the outer suburbs – areas hotly contested by both candidates. Obama also heavily outgunned Romney in the low-income counties along the Mexican border. As the Latino population of Texas grows, and immigration continues to be an important issue, how will this shake out in future elections?

Texas Election Results 2012 by percent

It may seem cliched, but the red vs blue paradigm is high-contrast and color-blindness friendly.

Data Sources: Politico.com, US Census
Projection: UTM 14N (WGS-84)
Tools: QGIS, GIMP

Welcome to Critical Atlas! My name is Leigh and I am a professional GIS technician, cartographer, data visualizer, and web developer. Believe it or not, those are also my hobbies. When I encounter a neat set of data, I sometimes make a map or a chart to visualize the data, just for fun. Often, these visualizations lead to interesting and critical discussions of the data and its implications. My hope is that sharing these visualizations with the public will spark broader discussion on a wide range of topics.

Each map or chart shared on the site will include:

  • links to source data
  • information about projection
  • a list of the software tools used to create the image

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