HTML5 and the Limits of Imagination

Tuesday, December 11, 2012
I just (days later than everyone else) came across this awesome Google Maps application built by Darren Wiens using the buckled-on graphics capabilities of paper.js. It strikes me as a perfect example of good imagination at work on complex geographic problems. Specifically, this is a mixture of pure javascript, HTML5 browser-boosting and advanced trip routing, all to make a cool visualization of where traffic bottlenecks will arise.

The application calls on paper.js to generate an endless series of random point-to-point trips within the map view, then passes them to Google's routing API and renders the result visually as a trip on the local road network. Over a short time, the traces of the trips build up into a density map of highest traffic:

So as is my wont, I grabbed the code (Thanks again to Mr. Wiens) and adapted it to my home territory of Burlington, VT, with a bit of map styling for contrast (modern browser required):

I intend to spend a lot more time figuring out the ways that new graphics modules can interact with the maps I build, but as always I'm limited by my own imagination. It seems like the technology is increasingly unlimited in capability.

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Hashtags and Hurricanes

Wednesday, December 5, 2012
I was scoffing at Twitter a few years ago. Actually, I was openly mocking it, jeering that perhaps 140 characters was too verbose for the new world order.

Then came Hurricane Irene.

Vermont got slammed to a degree we hadn't experienced in a century. Flooding cut off whole towns and wrecked hundreds of miles of roads. Communications were a thicket of half information and delays as the news media tried to step in for a crippled emergency management system. But while working with the Ushahidi platform in support of VTResponse, I discovered that Twitter was ablaze with actionable info. 14,000 tweets used the #vtirene or #vtresponse hashtags during the storm, and Ushahidi vacuumed them all in for automated and manual analysis, then channeled them off to state and local officials. I saw the power of Twitter.

These capabilities were recently tested again when Hurricane Sandy showed up, and with a bit more experience I observed that Twitter by no means removes all the noise and confusion. Two incidents raised my hackles:

  •  Burlington, VT - and indeed the broader Vermont community - have long used the #BTV hashtag to organize news that runs from mundane to crisis-critical. I had configured a new instance of Ushahidi to note #BTV tweets as Sandy got closer, so it caught me off-guard when Bloomberg TV started soliciting photos of storm damage using #BTV. With visions of flood-isolated Vermonters unable to get their message through a deluge of Manhattanite instagrams, I politely asked that they use a different channel. I heard nothing back from the TV station, but it was a moot point; they got very little traffic on #BTV despite the fact that NYC got walloped and VT mostly escaped unharmed.

  • Encouraged by the successful use of Ushahidi and Google's Stratomap plaforms for crisis mapping during Irene, the world's largest producer of mapping software - ESRI - decided to go full-court press during Sandy with their own crisis response web maps. The problem is they're not that good at it. Taking more of a marketing approach, ESRI blanketed Twitter and the #sandy hashtag with links to "Map galleries" full of redundant chartjunk, mostly pulling data from FEMA and local response agencies.

"How do I get to a Red Cross station? Yellow dots, blue crosses? I have to install Silverlight to view this?"
On Twitter, this diverted thousands of clicks worth of traffic away from information Rally points like Google and FEMA (who was actually using ESRI web tools, just with some forethought). Ironically, almost every emergency response agency was using ESRI's desktop software to coordinate infrastructure and personnel; ground-level geocrunching is ESRI's great strength. But their half-baked web tools only served to dilute any sense of authoritative information on Twitter as Sandy raged into the coast. Afterward I had a productive conversation with ESRI's Public Safety Marketer, but it's not clear that their approach will change in the future. Hopefully their tools will.

These complaints each deserve a post of their own, but I prefer to minimize my ranting about the negative side of technology. However, I'll be bearing all of this them in mind when the next emergency hits and we look to Twitter for rapid distribution of news. For better or worse, Twitter and Facebook are tools of public information during crisis situations, and it is incumbent on us to amplify the signals of highest priority and applicability.

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