Interacting Agglomerations

A paper originating from our EU FP7 Insight project on extending land use transportation models to embrace better sub models of the retailing sector. Our paper entitled “Quantifying Retail Agglomeration using Diverse Spatial Data” by Duccio Piovani, Vassilis Zachariadis and myself has just been published in Scientific Reports – you can download it here. The model partitions the agglomerating effects of retailing into two scales: the typical zonal scale where consumers travel to shopping centres of different sizes and at different distances/travel times from the places where they generate their demand for such goods, and shopping centres themselves where shops of different and like sorts agglomerate, thus affecting the demand for particular retails goods within each shopping centre. The model is quite straightforward in that it has the structure of a nested logit model of discrete choice where the nests are the shopping centres within which the individual retailing facilities are located. We fit the model to data for the inner area of the Greater London region, and you can get the results from the paper.

Understanding Spatial Media


A new book from the Kitchin stable. I have a short chapter in it on smart cities and you can get it here. Over the past decade, a new set of interactive, open, participatory and networked spatial media have become widespread.  These include mapping platforms, virtual globes, user-generated spatial databases, geodesign and architectural and planning tools, urban dashboards and citizen reporting geo-systems, augmented reality media, and locative media.  Collectively these produce and mediate spatial big data and are re-shaping spatial knowledge, spatial behaviour, and spatial politics.

My chapter on Producing Smart Cities that you can download here within the book edited by Kitchin, Lauriault and Wilson Understanding Spatial Media brings together a series of ideas from around the globe to examine these new spatial media, their attendant technologies, spatial data, and their social, economic and political effects. The chapters are divided into the following sections: Spatial media technologies. Spatial data and spatial media, and the consequences of spatial media.

City Analytics


City Analytics: An invited special collection of articles for Royal Society Open Science entitled ‘City Analytics’ compiled and edited by Desmond J. Higham, Michael Batty, Luís M. A. Bettencourt, Danica Vukadinovic Greetham and Peter Grindrod. Click here or on the image above for the papers.

The growing human urban population presents unique opportunities and challenges for a range of stakeholders. As is presented in this special collection, using a range of mathematical, computational and statistical tools, it is possible to extract and analyse data on urban environments from myriad sources of information.

In the City Analytics special collection, interdisciplinary work exploring, for instance, social media usage patterns, transport networks and urban resilience to natural disasters, such as flooding, provide researchers and policymakers with detailed insights. Click here for the editorial and the papers and for the contents which are open access.