Skip to main content

Washington’s smarter traffic signals could ease commuter congestion

City officials in Washington, DC, are launching a two-year test of technology that they hope will ease traffic gridlock and improve public safety in the city. In 2013, they will begin connecting traffic signals to existing high-speed network cables that run beneath the city streets. Once connected to the network, the signals will be equipped with video cameras and wi-fi hot spots. The test program will cover traffic lights at 16 intersections. According to governing.com the DC metro area regularly turns up
November 14, 2012 Read time: 3 mins
City officials in Washington, DC, are launching a two-year test of technology that they hope will ease traffic gridlock and improve public safety in the city.

In 2013, they will begin connecting traffic signals to existing high-speed network cables that run beneath the city streets. Once connected to the network, the signals will be equipped with video cameras and wi-fi hot spots. The test program will cover traffic lights at 16 intersections.

According to %$Linker: 2 External <?xml version="1.0" encoding="utf-16"?><dictionary /> 0 0 0 oLinkExternal governing.com www.governing.com false http://www.governing.com/columns/tech-talk/col-taming-tough-commute.html false false%> the DC metro area regularly turns up on lists of the nation’s most congested cities. A study by Texas A&M University’s Texas Traffic Institute estimated that DC commuters spent 74 hours stuck in traffic in 2010, worse than New York, Chicago or Los Angeles.

Rob Mancini, chief technology officer for Washington, DC, thinks smart traffic management can shave off some of those hours spent commuting and improve public safety too.

The program will explore the feasibility of a number of potential improvements, Mancini says. For instance, the city will test whether power can be delivered to traffic signals through the communications network using a technique called power over Ethernet, which could keep traffic signals operating when traditional power lines are down. The city also will experiment with sending live traffic video to police officers and traffic management centres.

“When we have a problem at a particular intersection, we could use the camera and the wi-fi hot spot to send video to the nearest police cruiser and show them where we have an issue,” Mancini says. “Assuming we ultimately go beyond our 16 test blocks, this could mean a much more rapid response to traffic issues in the city.”

Besides improving the daily commute, broad deployment of smart traffic management technology could strengthen overall emergency response in the nation’s capital. When a relatively mild earthquake struck the area in 2011, thousands of office workers were evacuated from their buildings. When they attempted to head home, they jammed the streets and brought traffic to a standstill. The new system could give traffic managers much better information about conditions in the city and let them take control of traffic signals to speed future evacuations.

Mancini says the smart traffic experiment is possible because of Washington, DC’s commitment to building a high-speed information network that stretches throughout the city.  More than 350 miles of fibre optic cable has already been installed, and the city expects to complete an additional 170 miles of cabling by late next year.

“The sky’s the limit when you have this level of connectivity,” Mancini says.
Indeed, he envisions wi-fi hot spots at traffic intersections providing valuable services and applications to DC commuters while they wait for the lights to change. During emergencies, when cellular networks often become overloaded with callers, drivers stuck in traffic could still text a message home, Mancini says. In more routine situations, drivers could simply access free city apps that report traffic conditions and recommend alternative routes.

Related Content

  • Russian Days increase profile at Intertraffic
    March 24, 2014
    Russia plans to increase its profile significantly at this year’s Intertraffic with a series of three ‘Russian days’, bringing together representatives of the country’s central and regional governments, public and private companies, plus technical experts. The three sessions, starting at noon at the booth of the Ministry of Transport of the Russian Federation in the RAI’s Elicium Centre, will last for up to an hour. This will allow time for brief talks by specialist speakers, followed by questions from the
  • Cubic launches virtual video ticketing
    February 26, 2014
    If you want to know the future of transport ticketing, make sure you visit the Cubic Transportation stand at Intertraffic Amsterdam 2014 and check out NextAgent, the virtual ticketing concept that is set to revolutionise the industry. NextAgent Video Ticket Office acts as a combination of a conventional ticket office, vending machine, and call centre. The passenger speaks and interacts, face-to-face, with a clerk throughout the ticketing process, just as they would at a traditional ticket window. The onl
  • An analysis of real-world crashes involving self-driving vehicles
    October 30, 2015
    A study by the University of Michigan performed a preliminary analysis of the cumulative on-road safety record of self-driving vehicles for three of the ten companies that are currently approved for such vehicle testing in California (Google, Delphi, and Audi). The analysis compared the safety record of these vehicles with the safety record of all conventional vehicles in the US for 2013 (adjusted for underreporting of crashes that do not involve a fatality).
  • Noptel puts lasers in the spotlight
    October 24, 2012
    Finnish company Noptel plans to highlight its laser distance sensors used for traffic control at the World Congress. It will particularly be focusing on its Speeder X1 laser radar, which determines vehicle speed as well as its height and length.