Tag Archives: map making

The State of the Map 2016

Recently graduated Geothink student Julia Conzon (McGill University) has recently returned from the State of the Map conference in Brussels, on a travel grant. Julia was able to meet individuals interested in different social, political, and technical components of OpenStreetMap, which solidified her beliefs that the success of volunteered geographic information relies on both social and technical fields. Julia’s interests in mapping include: increasing diversity to reduce the digital divide and harnessing government support.

SOTM group photo (photo by Tatiana Van Campenhout)

SOTM group photo (photo by Tatiana Van Campenhout)

By Julia Conzon

I recently attended the State of the Map (SOTM) in Brussels, Belgium. SOTM is a conference that discusses various social, political, and technical components of OpenStreetMap (OSM), a mapping website that aims to map all of Earth’s landscapes, such as social and physical infrastructures. You may wonder, doesn’t Google already do this? In short, yes, Google has done an efficient job producing Google Maps and its associated routing/navigation software; but it still has its limitations. First, Google Maps has several unmapped locations. As addressed by SOTM’s keynote speaker Allan Mustard, US Ambassador to Turkmenistan, if you compare the map of Ashgabat, Turkmenistan, between Google Maps and OSM, you will certainly see a difference (Figure 1). Secondly, Google’s spatial data is not open, which hampers equality and empowerment. Thanks to Ambassador Mustard’s initiative to use OSM, he and several Ashgabat locals have mapped out the remote city and now the citizens can use this open spatial data for various socio-economic purposes. For example, prior to the OSM maps, Ashgabat taxi drivers did not know where all the gas stations were located. Now, with a local map openly accessible to all citizens, Ambassador Mustard says taxi drivers are more efficient at navigation. In short, OSM provides an open-source platform that allows worldwide internet users to contribute geographic features of anywhere from anywhere, which then can be freely downloaded by anyone to use.

Figure 1. Differences in Ashgabat, Turkmenistan between OSM (left) and Google Maps (right) (screenshots from OSM and Google Maps)

Figure 1. Differences in Ashgabat between OSM (left) and Google Maps (right) (screenshots from OSM and Google Maps)

Government Support
As seen with Ambassador Mustard, there are some within government who do support crowdsourced mapping initiatives. With Federal funding, Statistics Canada has announced a pilot crowdsourcing project starting in October 2016 to use OSM’s platform to crowdsource building data. It was also exciting to see the government presence at the conference (such as a member of Statistics Canada) and government partnerships such as between Etalab (a French government organisation) and OSM France.

Through one of the Birds of a Feather (BoF) discussions I participated in, it is apparent that OSM’s platform is positively reshaping certain government’s perceptions on how to produce open data. However, a presentation from Usman Latif, a journalist from Pakistan and the founder of Open Humanitarians (formerly DigitalHumanitarians.pk), reminded the SOTM audience that not all governments are democratizing their data. In Pakistan, broad laws have made unauthorised mapping activities by locals illegal. Usman risks penalties if he encourages local mapping, but he explained that to follow the law, he encourages students and youth to map parts of the world outside Pakistan and “to be a part of a global humanitarian society.” Usman’s goal is to proliferate a vibrant community of humanitarian mappers in Pakistan who can eventually use their mapping skills to participate in the global humanitarian society, particularly in disaster response. With Pakistan prone to earthquakes and floods, Usman hopes these educated Pakistanis will contribute to domestic disaster responses once Pakistan opens up local mapping. With this mindset, Usman now educates university students in Pakistan on using OSM. Although not all governments are supportive of open spatial data, Usman’s goals illustrate how educating locals about OSM and encouraging them to contribute to global (digital) humanitarian society can promote local empowerment, something I believe is a worthwhile alternative.

Smart Cities
Apart from social and political components of OSM, many presentations also addressed technical components; more specifically, new automated tools for OSM users. Some of these tools can be used to promote smart cities. Christian Quest and Michel Blancard from Etalab presented OpenSolarMap (view Figure 2). This presentation discussed using machine learning to identify which rooftops throughout France are most suitable for solar panel instalment based on rooftop aspect direction (north, south, west, east, or flat). Although there are still some variables that are excluded (e.g., solar intensity or rooftop angle), the software does highlight a more efficient methodology.


Figure 2. Etalab’s map visualization of rooftop directions (photo by Julia Conzon).

There were also three presentations proposing different methods to map indoor areas. Indoor data can be used for a series of smart city applications, such as geomarketing. For instance, a mobile app could link indoor routing with a store’s product information to direct a customer to the product they want in the store while also encouraging them to pass by other similar products. Although each presentation proposed slightly different methodologies to map out indoor areas, all three shared similar concerns on mapping certain features, such as whether a stairway takes you up or down a floor. There were also different stances on opening up the indoor data to the public. For example, French National Railway Company (SNCF) have mapped the interiors of all popular stations in Paris; but, instead of this data being openly accessible to the public, they combined their data with OSM data to create an app that provides maps of these stations’ interiors. Unfortunately, this app is not available for free, which disappointed myself and my neighbouring audience members. On the other hand, Roland Olbricht’s and Roland Wagner’s workshop taught the audience how to map building interiors with OpenStationMap, which is an OSM project that aims to incorporate indoor mapping onto OSM’s station polygons. As Google Maps has also introduced indoor mapping, Carto Cité’s presentation on indoor mapping reminded the audience, ‘We can’t leave it all to Google’ (Figure 3). If we leave indoor mapping to a few corporations, data accessibility may be restricted for commercial interests.

Figure 3. Indoor mapping efforts should not be undertaken by only a few actors

Figure 3. Indoor mapping efforts should not be undertaken by only a few actors (screenshot from YouTube)

Overall, the State of the Map presented two trends: collaborative learning and machine learning. The latter trend reflects discussions on automation of mapping processes, while the former trend reflects discussions on on-the-ground mapping with locals. Although these trends seem diverging, OSM’s platform is capable of incorporating both. As OSM Foundation’s Mikel Maron mentioned, it is about being “a part of the database.” Whether it be building technical tools to ease mapping complex areas or educating locals to contribute geospatial data, both trends aim to provide open geospatial data for all to use.

This collaborative environment has ultimately encouraged me to sustain the initiative for open spatial data. With the knowledge I have gained from the conference, I will introduce several new activities to Maptime MTL. Feel free to contact me at juliaconzon@gmail.com or maptimemtl@gmail.com if you are interested in participating or collaborating. You can also connect with me on Twitter @julconz and LinkedIn.

An Emergent Field: Making Better Maps By Applying Geographical Science to the Human Brain


Monitoring the human brain. (Photo courtesy of Flickr user Tabsinthe)

By Drew Bush

City planners often use socioeconomic data collected in surveys to determine neighbourhoods that might benefit from improved services. Yet such types of data can have a significant margin of error, especially when they’re collected from a relatively small group.

“Especially if you want to look at a small subset of the population—say, kids under 5 who are living in poverty—the uncertainty level is just huge,” Amy Griffin, a senior lecturer in the School of Physical, Environmental, and Mathematical Sciences at Australia’s University of New South Wales told CityLab’s Laura Bliss last November. “A lot of times, people are making decisions based on highly uncertain census data.”

Her research looks at how different kinds of visualizations can affect decision-making, with an emphasis on understanding the cognitive processes behind the use of maps. Still others in her field are engaged in understanding how the human brain engages with maps in order to improve map-making and the role it plays in municipal governance.

Some in the field study neuroscience from the uniquely geographical perspective of how the human brain reacts to maps with differing standards, visual cues and rules. Sara Irina Fabrikant, head of the Geography Department at the University of Zurich, dedicates her time to understanding how users make inferences from the design elements on a map, and how mapmakers might then design maps that convey data more clearly.

For example, in experiments she conducted to compare a NOAA (National Oceanic and Atmospheric Administration) mass-media weather map versus one of her own design, she found design elements could be used to simplify confusing variables and help users better understand characteristics like wind pressure. Her map included well-defined contour lines for wind pressure and less emphasis on temperature colors.

“Are our rules really good ones?” Fabrikant told CityLab. “If so, how? If they’re not, how can we improve them?”

Amy Lobben, head of the Department of Geography at the University of Oregon, asks a different question. She wants to know what neurological processes are at play as individual brains perform map-related tasks. Her possible goal: to create a map that plays off a given person’s cognitive strengths and weaknesses.

“You could potentially design a map that works with individuals’ innate abilities,” she told CityLab.

If you have thoughts or questions about the article, get in touch with Drew Bush, Geothink’s digital journalist, at drew.bush@mail.mcgill.ca.