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

  • April 23, 2013
    Flir thermal sensors aid police in capturing Boston bombing suspect
    Last Monday morning two bomb blasts went off near the finish line of the Boston Marathon. By Friday night the suspect, Dzhokhar Tsarnaev, was in police custody. After he survived a gunfight with police and slipped out of a dragnet, Massachusetts State Police finally spotted him via a thermal imaging technology manufactured by Flir.
  • August 22, 2016
    USDOT hosts webinar on New York connected vehicle pilot
    The US Department of Transportation is hosting a webinar on 22 August at 1500-1600 EDT, Insights, Challenges and Lessons Learned from the Concept Development Phase - New York City (NYCDOT) Pilot Site. The New York City Connected Vehicle Pilot is part of a national effort to advance connected vehicle technologies through deployment, testing, and demonstration, as well as sharing lessons learned for future connected vehicle providers. The pilot, which is anticipated to be the largest connected vehicle depl
  • August 26, 2016
    Hamburg to bid for 2021 ITS World Congress
    ITS Germany used its presence at the June 2016 Europe ITS Congress in Glasgow to make two major announcements from the city of Hamburg, country’s second-largest urban area. First came a formal bid to host the 2021 ITS World Congress; second, the global unveiling of new Roadwork Administration and Decision System (ROADS) software.ROADS has emerged to enable coordination of planned transport construction projects several years before start dates, to minimise impacts on traffic flows when work begins.
  • February 15, 2019
    China Mobile to trial 5G smart expressway in Hubei province
    Telecoms company China Mobile is working with highway operators to unveil a 5G-based smart expressway programme in China’s central Hubei province. A report by Ecns.com says the company’s Hubei subsidiary is taking steps to choose sites for 5G stations, test intelligent tolling systems and prepare for trials involving driverless cars. China Mobile’s Hubei branch is working with the group’s tech subsidiary in Shanghai and with Hubei Provincial Communications Investment to investigate how ultrafast 5G