Chicago installs "fitness tracker for the city"

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Chicago installs "fitness tracker for the city" to improve infrastructure and residents' health

Areas of Chicago have been fitted with a network of sensors, which will work like a Fitbit activity tracker to provide both scientists and citizens with open data about the urban environment (+ movie).

Known as the Array of Things, the urban sensing network was developed by the Urban Center for Computation and Data at the University of Chicago, the Argonne National Laboratory and the City of Chicago.

Array of Things sensor package
The Array of Things sensor packages are designed to collect data about the urban environment

The project's title is based on the Internet of Things – a collective name for everyday devices, objects and systems that are networked via Wi-Fi to share and respond to data.

The first of 500 sensor packages have been installed across the city, working similarly to werable activity trackers to provide data about various environmental factors.

"Array of Things is designed as a 'fitness tracker' for the city, collecting new streams of data on Chicago's environment, infrastructure, and activity," said a spokesperson for the university.

Array of things tracker
Their sensors can collect information about climatic and atmospheric conditions, while two cameras obtain visual data

The aim is to help Chicago's experts, policymakers and residents better understand issues like urban flooding, air quality and traffic patterns, so solutions to any problems can be developed.

"We'll be able to understand things like road conditions better, because the Array of Things will show us where water is collecting," said Brenna Berman, the City of Chicago's chief information officer. "It will help us predict vehicular and pedestrian traffic patterns better, so we can offer better services."

Installed on lamp posts and the sides of buildings, each beehive-shaped sensor package can collect information about air quality, temperature, humidity, barometric pressure, vibration and magnetic field.

Array of things tracker
The sensor packages, depicted here as an earlier iteration, are designed to be mounted on lamp posts and the sides of buildings

Two cameras also obtain data about vehicle and foot traffic, standing water, sky colour and cloud cover.

The information gathered will be accessible to all via open platforms, including on the University of Chicago website.

According to the Array of Things team, many organisations have already approached them with proposals to use the data to provide users with relevant information via various apps.

Array of things tracker
The data collected by the network of sensors will be available to everyone via online platforms

For example, asthmatics could be informed about which areas of the city are experiencing poor air quality.

"It's truly doing science out there in the city and in the communities," said Berman. "We'll be able to engage with community groups to make the data their own."

Array of things tracker
The first batch of sensors has been installed in different parts of Chicago

The industrial Pilsen area of Chicago – south-west of the city centre – was chosen as one of the initial testing grounds for the Array of Things, where air quality levels will be assessed.

In the city's central Loop area, sensor packages are being placed at every block along State Street and Randolph Street to help understand pedestrian and traffic flow.

Array of things tracker
It is hoped that a citywide network of 500 Array of Things modules will be in place by 2018

By 2018, a citywide network is hoped to be in place.

Earlier this year, Dezeen spoke to architect Carlo Ratti about the potential for the Internet of Things to transform the way we think about cities.

His work at MIT investigates and anticipates how digital technologies are changing the way people live at an urban scale, with projects ranging from sewage-sampling robots to traffic infrastructure for driverless cars.