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

  • Vitronic presents next-generation of Lidar technology
    September 7, 2014
    This ITS World Congress sees Vitronic presenting its next-generation of Lidar (Light Detection And Ranging) traffic enforcement in North America. The new and enhanced PoliScan system offers not only best-in-class speed and red light enforcement but enables authorities to enforce additional violations such as tailgating, point-to-point speed enforcement, and ANPR applications simultaneously from the one fixed location.
  • Ride-hailing and taxi drivers could face tougher criminal checks in England
    February 14, 2019
    Drivers who ply their trade on apps such as Uber could be under greater scrutiny as part of proposals being put forward by the UK government. The potential risk to passengers from the explosion of ride-hailing apps, as private-hire drivers are perceived to receive less thorough vetting – for example, to flag up past convictions – has long been argued. Incidents such as the murders of passengers by a Didi driver in China heightened such concerns - although critics point out that a US Uber driver who ad
  • Viajeo Plus sustainable urban mobility showcase
    October 31, 2014
    Viajeo Plus, an EC funded FP7 international cooperation project for implementation of innovative and efficient urban mobility solutions, has organised a City Showcase in Chengdu Heritage Park, China, on 11 November. The event aims at facilitating knowledge exchange and experience sharing between China and Europe on sustainable urban mobility. It will gather technical experts, policy makers and researchers to present their achievements on sustainable urban mobility solutions, to discuss their needs and to
  • Japan to equip 5G base stations on traffic lights
    June 24, 2019
    The Government of Japan is to install 5G wireless communications base stations on traffic signals nationwide by 2025. A report by The Japan News says the project is expected to reduce costs for telecommunications service providers. As part of the project, traffic signals will be equipped with devices to measure the amount of traffic. The information sent from the stations to the vehicles is expected to support autonomous driving. Japan is not the only company looking to harness the potential of 5G. In F