The following guest post is by David Eaves who is the founder of datadotgc.ca and a member of the OKF’s Working Group on Open Government Data. The post originally appeared over on his blog.


As some readers and International Open Data Hackathon participants know, I’m really keen on developers reusing each others code. All too often, in hackathons, we like to build something from scratch (which can be fun) but I’ve always liked the idea of hackathons either spurring genuine projects that others can reuse, or using a hackathon as an excuse to find a project they’d like support and contribute to.

That’s why I’ve been really encouraging people to find open source projects out there that they’d find interesting and that will support others’ efforts. This is a big reason I’ve been thinking about MapIt and the Open Knowledge Foundation’s Where Does My Money Go project.


In Vancouver, one project I’m eventually hoping we can contribute to is Adopt-a-Hydrant. A project out of Code for America, the great thing about Adopt-a-Hydrant is that it can be adapted to become an adopt an anything app. It’s the end goal of a project I’m hoping to plan out and start on during the Hackathon.

Here in Vancouver, I’ve been talking with the Parks Board around getting a database of all the cities trees opened up. Interestingly this dataset does not include location data (Lat/Long) for each tree… So what would initially be great is to build a mobile phone app that will show you a list of trees near the address the user is currently at, and then allow the user to use their phone’s GPS to add the lat/long data to the database. That way we can help augment the city’s database. Once you begin to add lat long data then you could map trees in Adopt-a-Hydrant and create an Adopt-a-Tree app. Citizens could then sign up to adopt a tree, offer to take care of it, maybe notify the parks board if something is wrong.

I consider this a fairly ambitious project, but it could end up engaging a number of stakeholders – students, arborists, retirees, and others – that don’t normally engage in open data.

I know that the crew organizing a hackathon in Hamilton, Ontario are also looking to create an instance of Adopt-a-Hydrant, which is awesome. We need to both track what worked and what didn’t work so that the kinks in Adopt-a-hydrant can be worked out. More users and developers like us will help refine it further.

If you are planning a hackathon for the Dec 3rd International Open Data Hackathon, please be sure to update the wiki, join the mailing list, and if you have a project your are planning on working on, please email the list, or me directly, I’d love to blog about it!

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Theodora is press officer at the Open Knowledge Foundation, based in London. Get in touch via press@okfn.org