Interactive Map Allows Comparisons of the Nation's Traffic Camera Systems

Some cities take their surveillance of traffic violations very seriously. Washington, D.C., this time we're looking at you.

1 minute read

October 19, 2015, 11:00 AM PDT

By James Brasuell @CasualBrasuell


Sarak Kliff and Soo Oh report on the work of Jonathan Melby and Angela Buffington, who since 2006 have gathered and maintained a massive database of all of the red light cameras and speed cameras in North America. "This database now has 3,699 red light cameras and 1,413 speed cameras — although that could change as the list is updated each week," according to Kliff and Oh.

Kliff and Oh used the database to produce an interactive map of each of those cameras, which allows users to compare each city's traffic cameras. The article accompanying the map also includes thoughts and insights Melby and Buffington about the process of maintaining the database. For instance, the database reveals Washington, D.C. to have the most traffic cameras in the country. Melby and Buffington also report some of the characteristics of camera systems in cities like New York and Phoenix.

Friday, October 16, 2015 in Vox

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

Get top-rated, practical training

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.

April 30, 2025 - Diana Ionescu

Close-up on Canadian flag with Canada Parliament building blurred in background.

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?

As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

April 28, 2025 - Benjamin Schneider

Hot air balloons rise over Downtown Boise with the State Capitol building visible amidst the high rises.

The Five Most-Changed American Cities

A ranking of population change, home values, and jobs highlights the nation’s most dynamic and most stagnant regions.

April 23, 2025 - GoodMigrations

People biking along beach path with moored ship in San Diego, California.

San Diego Adopts First Mobility Master Plan

The plan provides a comprehensive framework for making San Diego’s transportation network more multimodal, accessible, and sustainable.

May 2 - SD News

Sleeping in Public

Housing, Supportive Service Providers Brace for Federal Cuts

Organizations that provide housing assistance are tightening their purse strings and making plans for maintaining operations if federal funding dries up.

May 2 - KSL

Conductor walks down platform next to Amtrak train at station in San Jose, California.

Op-Ed: Why an Effective Passenger Rail Network Needs Government Involvement

An outdated rail network that privileges freight won’t be fixed by privatizing Amtrak.

May 2 - Streetsblog USA

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.

Senior Manager Operations, Urban Planning

New York City School Construction Authority

Building Inspector

Village of Glen Ellyn

Manager of Model Development

Central Transportation Planning Staff/Boston Region MPO