Mapping for Sustainable Communities Seminar

As part of the Mapping Change for Sustainable Communities, we are organising a one day seminar titled ‘Mapping for Sustainable Communities – An interactive day of reports and discussion for community practitioners, academics and community groups‘.

This event is scheduled for 17th June 2008, starting at 10.30 and finishing with a reception around 7.00 in the evening. It is free and open to anyone with interest in community mapping.

This is how we describe the event:

The seminar will consider recent work and ways forward. It is being organised by University College London and the London 21 network as part of their ‘Mapping Change for Sustainable Communities’ project funded under the UrbanBuzz programme and their Environmental Justice programme. These projects use internet-based and paper mapping along with other tools to work with communities on collecting and collating local information.

The seminar will bring together academics, practitioners and community groups to discuss the use of mapping as a means of engagement and tool for collaborative action, and to consider the benefits and limitations. The seminar includes sessions for academics and practitioners and a celebration of community work.

Outline Agenda
10.30 am “Academic” Session – Theory & Research

  • The use of different methodologies in participatory mapping
  • Mapping, impacts and inequalities
  • Panel discussion: the balance between participation and the use of technology

2pm “Practitioners” Session – The Practice of participatory mapping

  • The use of mapping with local communities
  • Mapping, empowerment and Community Development
  • Local Government, Regeneration and the use of community mapping
  • Practical workshop: starting a participatory mapping project

4.30pm “Community” Showcase – work in progress

  • A brief introduction to the development of the two projects, followed by presentations about the five case studies.

6pm Reception

Now, just because a session is tagged as academic, practitioners or community, it doesn’t mean that we want just one group – the whole point is to have people from different groups joining the discussion throughout the day. The titles are about the ‘hats’ that you put on during a session!

The conference is free but numbers are limited. Register on-line at http://www.communitymaps.london21.org/includes/mcsc_conference.php

Open Knowledge Conference (OKCon) 2008 presentation

Below you can find the presentation that I gave at the Open Knowledge Conference on 15th March. The presentation focuses on the issue of environmental information and Open Knowledge and covers several areas of open information and access to environmental information, starting with a short overview of the background, followed by some examples of environmental information over the internet from the past 14 years. It continues with a few examples of recent development and a discussion of the work that we’ve been carrying out at UCL recently. Finally, there are observations on access to information in the environmental field. The presentation contains notes that explain each of the slides – for a version with the notes, click here.

One interesting observation from the discussions during the conference was that the discourse of Open Knowledge, which is a political discussion, is lacking in the area of political philosophy, and bringing this issue up will reveal, I suspect, inherent differences which are very significant for the substance of the licenses’ structures, software design and many other aspects in this area.

What I mean by political philosophy is that if you approach Open Knowledge from an egalitarian or altruistic approach then you would have a specific set of perceptions about what it can be used for, by whom and under which conditions, which will be very different to an approach taken by a strong techno-libertarian believer. The egalitarian approach might emphasise the fact that the use of your knowledge must be beneficial for society, and, if the data or software is used for personal benefit, then there should be some social payback. It is likely that no demands will be made restricting further use. The techno-libertarian approach will pick and choose which rights you want to protect (yours) and which you don’t (for example, those of media companies). You are likely to dictate certain conditions on the use of your data, to further your belief.

The core issue is what is the social change that you are trying to lead and what levers are you using to achieve it?

The argument against an explicit discussion of political philosophy is that it can destroy Open Knowledge projects (such as OpenStreetMap, where a whole range of underlying political philosophies can be found), but the problem is that the licensing and legal structures around them are unsatisfactory exactly because the politics remain unarticulated.

Even if in many projects the politics are hidden, I think that conferences and meetings (such as OKCon) should be the right forum to discuss these aspects.

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For a more detailed analysis of public access to environmental  information, see Haklay, M., 2003, Public Access to Environmental Information: Past, Present and Future, Computers, Environment and Urban Systems, 27, 163-180
and other publications.

London’s Suburban Town Centres Profiler – a Geovisualisation application without interactive mapping

This week, we have released the ‘Suburban Town Centres Profiler’. The application can be accessed from the Towards Successful Suburban Town Centres website, and was originally developed to support hypotheses development within the project’s team. It’s been quite a while that we’ve been working on the range of maps and information the profiler is based on, practically since last summer.

All the details about the profiler are on its website, but an interesting point that underpins it is that, in some cases, it is worth sacrificing the interactivity of the map itself to allow users to concentrate on the information. In HCI terminology, the main task is not about interaction with the map but with the information and its meaning, so providing interactive maps will actually reduce the usability of the application!

The maps on the profiler do not support zoom in, zoom out or panning. However, they are not meant to be interactive by themselves. The idea behind the application is to allow systematic and consistent comparison of many layers of geographic information across a range of 26 town centres in London’s suburbs. To achieve this task, the interface allows us to switch between themes and explore various datasets quickly, and, by ‘locking’ the map itself, we can ensure that we are looking at each Town Centre at the same scale and to the same extent. I’m sure that there are other cases where such an approach is the correct one – not all interactions are necessarily helpful to the user’s task…

MySociety’s FixMySteet is somewhat similar – it is holding the scale constant while allowing Panning.

AGI 2008 – engaging academia and industry

AGI 2008 logo

As in 2007, I am a member of the Association of Geographic Information (AGI) conference organising committee. Judging by the 2007 conference, this is going to be an excellent event. The range of papers, speakers and more importantly participants created an entertaining and educational two days, in addition to the networking and meeting of some familiar faces, including former students who are now part of the GIS industry.

However, over the past few years, the relationships between the academic side of GIS and industry – especially through the AGI – have not been as close and collaborative as they should be. This is a shame, as the many MSc courses in GIS programmes across the country are a significant entry route to a career in GIS. As I’ve noted, it is crucial for GIS professionals to keep up with the wider field and to learn about developments at every opportunity. This is not just true for people who are working with GIS on a daily basis, but also for academics who are carrying out research with or about GIS and GIScience and who educate future generations of GIS professionals. It is therefore unfortunate that only a few academics showed up to the AGI conference last year.

This year, the AGI has very generously put in a special effort to outreach academia. Two opportunities are available – for students there is a competition for a free day pass and an opportunity to meet prospective employers. For academics and researchers who submit a paper to the conference, there is another competition which is based on the papers that have been submitted with an award of significantly subsidised conference fees. So that’s a clear signal that the AGI is keen to see the academic side of GI at the annual conference – now we, as academics, need to do our part!

Confusing interfaces…

The Manifold training course that we ran earlier in February is always an excellent opportunity to observe how new GIS users interact with such a system.

Running a training session for new users of any GIS will expose major usability problems with the interface. Many of these problems are unnoticeable to experienced users, since they have learned the idiosyncratic aspects of the interface. Usability problems surface in such a session through misunderstandings and questions that the participants raise.

With Manifold, one of the interesting problems that came up is with the query toolbar (see below):

Manifold GIS query bar

The way the query toolbar works is that you select a field in the left drop-down list, an operator at the central drop-down and a value in the text box on the right and click on select to see the result. For example, if you enter 5 in the toolbar in the picture, it will lead to a selection of the 5 polygons on the map with the smallest area.

The confusing part of the interface is the ‘not’ between the left drop-down and the central one. For a new user, the interface reads ‘find objects on the map where the field Area (I) are not the bottom X’. The ‘not’ in this case is a toggle button that can be activated to negate the operation that was selected in the central drop-down. Clearly, it would be better if, when not activated, it had the word ‘is’ (Area is the bottom 5) and ‘not’ appeared only when it was active. This is one of the cases where usability enhancement could be carried out in less than a minute of a programmer’s time – and surely makes life less confusing to many novice users…

Finding your way as a tourist

During the visit to Turin, I had an opportunity to experience the consequences of address matching and georeferencing which I’ve noted in the entry ‘British Museum Test’. After touring the city, I needed to get to a restaurant to meet colleagues that were staying in the Institute for Scientific Interchange (ISI) in Turin. The meeting place was the ‘Il Porto di Savona’ restaurant in Piazza Vittorio Veneto 2. Since the hotel room was connected to the Internet through a relatively slow ‘Swisscom Hospitality Service’ connection, I decided to try to find my way to the restaurant with Google Maps, which are the fastest to download.

My first attempt with Google was unsuccessful – trying to search for ‘Piazza Vittorio Veneto 2, Turin’ pointed me to a place 10 miles away from the city. The next attempt was with Yahoo! Maps, but this one could not find anything. Microsoft Virtual Earth failed to find the full name, but offered a location called ‘Piazza Vittorio’ which I selected, only to zoom in and discover that the full proper name does appear on the map! Using this name (‘Piazza Vittorio’) with Google also worked and it managed to find the location.

Turin Map Virtual Earth

Interestingly, because the connection was relatively slow, the interface of Microsoft was fairly annoying as parts failed to upload, and I was deterred from using Multimap as I’ve experienced slow response in the past on a fast broadband connection at home. Even so, checking more recently with Multimap shows that it will direct you to the wrong place in the city – although again, if you zoom to the map, the square is clearly mapped with its proper name…

The experience demonstrated how significant the problem of georeferencing is on these public mapping sites. This is a fundamental problem for these search engines to make them really usable. In this case, I used my knowledge of the range of public mapping sites, manipulated the address until I got the location and did a lot of things that, I suspect, a less experienced user would not do. I persevered with the problem because of my interest in usability and because it was an interesting problem. Actually, in terms of efficiency, it would have taken me less time to just go downstairs and ask the concierge…

Another aspect is that download time still matters. This is an aspect that web designers tend to ignore. I suspect that the assumption here is that broadband connections are ubiquitous. The speed of downloading a page is significant in geospatial applications – because there is no way round the fact that, unlike text based sites, the map is the most significant part and must be delivered as graphic files which tend to bulk-up the overall size of the page, as far as the end-user is concerned.

I must note that once I managed to find the location, it was again a pleasure to use the old style tourist map to navigate to and from the restaurant, which, by the way, I warmly recommend.

The joys of not knowing the way ‘home’

Map reading and navigation can be challenging – personally, finding my location on the map when touring a new place is not always easy. As a result, I thought for many years that having a device that could guide me ‘home’ would be really useful. Of course, away from home, ‘home’ may mean the hotel that I’m staying in. Today, it is possible to have such a device, as many smartphones are capable of finding their location and use services such as Google Maps.

A recent visit to Turin (Torino) made me rethink this view. The hotel I stayed in provided a typical tourist map (see example below) with a delightful depiction of the buildings in the centre of the city, clearly marked tourist attractions and, as always, some additional information on the back of the map.[ The map was produced by A&C e Turismo Torino ]

Turin Map - Small

Touring the centre of a new place is a very enjoyable activity, and I realised that I didn’t want to get from the hotel to the centre in the most direct and efficient way. I really enjoy in looking in shops, public buildings, markets and other urban features along the way. Also, the fact that the map covered a large area at ‘high information density’ (the amount of information per square inch of interface area), because the printing is 6 to 10 times denser than a computer screen and arguably 60 times the area that is covered by the best smartphone screen, enabled me to see the ‘big picture’ and to notice more or less where I was heading. Instead of navigation by following a specific street, I was using the map to provide me with the general direction.

Nothing of the above is new, but, when I consider my experience and the enjoyment of touring a city and compare it to the current provision in navigation devices, I can see how much they are capable of spoiling the enjoyment of getting lost. Maybe the smart compass, as suggested by Max Egenhofer, can be useful for keeping the experience without destroying the really enjoyable aspects of it.

For a more general comment in the same vein, see Don Norman’s discussion in the recent ACM ‘Interactions’ journal for a more general complaint about devices and services which can destroy certain human enjoyments.