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

  • Waze partners with Esri to provide live traffic alerts in US
    July 23, 2018
    Waze's live alert data is now available in location intelligence company Esri’s ArcGIS marketplace. The service is available to members of the Waze Connected Citizens programme. The sharing of publicly-available traffic and road condition information is intended to help governments make infrastructure decisions and improve the efficiency of incident response. Through the agreement, Waze’s live feed of mapped traffic alerts and information on accidents, congestion and street damage is supported by Arc
  • Webinar – EV industry for land, sea and air
    March 7, 2014
    Gain an insight into market intelligence for the electric vehicle (EV) industry for land, sea and air with the IDTechEx webinar on Thursday 13 March. This will be a 15 minute overview and demonstration of the IDTechEx Market Intelligence Portal for electric vehicles land, sea and air. There will be time for questions and answers at the end. This webinar will discuss: Market forecasts for electric vehicles; Unique research focus - responding to an emerging trend; and demonstration of the IDTechEx mark
  • RuggedCom introduces wireless broadband solution for mass transit
    April 23, 2013
    RuggedCom, a Siemens company, is adding new features to its RuggedMAX portfolio enabling mass transit companies to extend persistent broadband connections to fleets of vehicles, buses or trains.
  • Laser Technology showcases its measurement instruments in the field
    April 23, 2013
    Laser Technology is showcasing its line of laser-based measurement instruments, highlighting real-world profile and event trigger deployments in North Carolina, Texas, Colorado and South America. The measurement systems are being used in red light cameras, license plate recognition and vehicle classification applications.