'ManyCities' Uses Mobile Phone Data to Visualize Human Activity

A new online visualization tool makes it easier to read and understand data about mobile phone usage in four cities around the world, including Los Angeles and New York.

1 minute read

September 10, 2015, 6:00 AM PDT

By James Brasuell @CasualBrasuell


According to a post on MIT Technology Review, the SENSEable City Laboratory, part of MIT, and Ericsson, a network infrastructure technology company, have unveiled an online tool that "uses mobile phone data to visualize human activity in cities all over the world."

The ManyCities tool, as it's called, "[gathers] mobile phone data from base stations across the cities of Los Angeles, New York, London, and Hong Kong between April 2013 and January 2014. The data includes the number of calls placed, the number of text messages sent, the amount of data downloaded and uploaded and the number of data requests at 15-minute intervals."

As an example of how the ManyCities visualization tool could be used, a Los Angeles civic enthusiast might peruse the site surprised to discover that the highest density of call activity in the city is located in Koreatown and Westlake.

The team behind ManyCities also presented the tool in the July issue of the Landscape Architecture Frontiers journal.

Tuesday, September 8, 2015 in MIT Technology Review

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

June 11, 2025 - Diana Ionescu

Metrorail train pulling into newly opened subterranean station in Washington, D.C. with crowd on platform taking photos.

Congressman Proposes Bill to Rename DC Metro “Trump Train”

The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

June 2, 2025 - The Hill

Large crowd on street in San Francisco, California during Oktoberfest festival.

The Simple Legislative Tool Transforming Vacant Downtowns

In California, Michigan and Georgia, an easy win is bringing dollars — and delight — back to city centers.

June 2, 2025 - Robbie Silver

Color-coded map of labor & delivery departments and losses in United States.

The States Losing Rural Delivery Rooms at an Alarming Pace

In some states, as few as 9% of rural hospitals still deliver babies. As a result, rising pre-term births, no adequate pre-term care and "harrowing" close calls are a growing reality.

June 15 - Maine Morning Star

Street scene in Kathmandu, Nepal with yellow minibuses and other traffic.

The Small South Asian Republic Going all in on EVs

Thanks to one simple policy change less than five years ago, 65% of new cars in this Himalayan country are now electric.

June 15 - Fast Company

Bike lane in Washington D.C. protected by low concrete barriers.

DC Backpedals on Bike Lane Protection, Swaps Barriers for Paint

Citing aesthetic concerns, the city is removing the concrete barriers and flexposts that once separated Arizona Avenue cyclists from motor vehicles.

June 15 - The Washington Post