You may have seen ear­lier this summer a series of maps released by Twitter showing thegeog­raphy of dif­ferent cities as revealed by mil­lions of tweets. Such maps of dig­ital infor­ma­tion are com­pelling for the way they also illus­trate con­crete infra­struc­ture: the road net­works around cities, the public parks inside of them, the clus­ters of com­mer­cial office buildings.

If you missed your own city in that series, North­eastern Uni­ver­sity assis­tant pro­fessor of com­puter sci­ence Alan Mis­love has cre­ated a global, nav­i­gable map using much of the same data.

Maps of geo-​​tagged tweets always rep­re­sent a biased sample of a biased sample. Tons of people aren’t on Twitter. And of those who are, the vast majority never opt in to sharing their geo­graphic loca­tion. The 275 mil­lion tweets shown in Mislove’s map, col­lected between 2011 and April of the year, reflect just the 1.5 per­cent of mes­sages that are readily geo-​​tagged. Still, these people appear to give a pretty impres­sive snap­shot of the trans­porta­tion net­works of large stretches of the globe.

Read the article at The Atlantic Cities →