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

  • USDOT releases ITS Strategic Plan
    February 20, 2015
    The US Department of Transportation has released its ITS Strategic Plan 2015-2019, outlining its plans for the future of intelligent transportation systems (ITS) research. Some highlights of the plan include program categories, which provide the structure for research, development, and adoption of its technologies, including connected vehicles, automation, emerging capabilities, enterprise data, interoperability and accelerating deployment.
  • UK freight trains to be upgraded with European Train Control Systems
    December 20, 2017
    Network Rail has contracted Siemens Rail Automation to install European Train Control System (ETCS) in-cab signalling on 750 of the UK's heaviest locomotives to improve safety and provide better use of the network with plans to retrofit the entire fleet in 2022. This technology forms part of the country's Digital Railway programme, and the government has invested £450m ($602m) as part of its National Productivity Fund. For the first phase, Siemens will install its Trainguard 200 (T200) ETCS on-board
  • Telegra launches next generation modular intelligent LED signs
    February 26, 2014
    Telegra is coming to Intertraffic Amsterdam 2014 to feature what it has termed “Signs of Intelligence!” – the company’s NextGen series of signs which are claimed to be a quantum leap in LED sign technology. They are a CE certified, lightweight, modularised and hermetically sealed sign that can be assembled in any size. Innovative technology ensures almost no maintenance required, so the company states that Operation & Maintenance (O&M) cost savings may reach 60%. State-of-the-art optical technology has redu
  • FLIR aims to build on US successes with infrared-spectrum cameras
    October 24, 2012
    FLIR is looking at this show to promote awareness of the successes its infrared-spectrum cameras have achieved in the US market, and to emulate those gains elsewhere in the world. Infrared cameras score over their visible light competitors for applications such as Automated Incident Detection (AID) and vulnerable road user detection, according to Dan Dietrich, the company’s Manager, Traffic & ITS. “Detecting bicycles and pedestrians is challenging for visible-spectrum cameras in certain conditions but becau