New article reveals the dynamic realities of urban accessibility and mobility in Tallinn, Estonia


A recent article titled “Dynamic cities: Location-based accessibility modelling as a function of time” introduces a framework and empirical study in Tallinn, Estonia investigating how the time of the day affects on accessibility patterns and the amount of people that can access services at different times of the day (24 h examination). The study combines advanced spatial analytics using mobile phone data (Call Detail Records), and accessibility modelling with public transport.

DYNAMO framework

A framework of dynamic accessibility modelling where all components of accessibility are considered as a function of time.

DYNAMO effect of dynamism

A step-wise incorporation of time into accessibility modelling in case of Tallinn. Lines indicate the share of people reaching the closest grocery store by hour of the day, based on a fully static accessibility model (A), a model with only dynamic population component (B), a model with only dynamic transport component (C), a model with only dynamic activity locations (e.g. stores), and a model with fully dynamic accessibility components (E). Figure E includes the line for the static model as a baseline to compare the influence of time on food accessibility.

The article was written by Digital Geography Lab, University of Helsinki who is behind the Mapple’s technologies and it was published in esteemed scientific journal Applied Geography.

Read the article:

O. Järv, H. Tenkanen, M. Salonen, R. Ahas & T. Toivonen. (2018). Dynamic cities: Location-based accessibility modelling as a function of time. Applied Gegraphy 95, 101-110.

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