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

  • ITS Austria hosts Austrian technology at World Congress
    September 26, 2012
    Austria is hosting the ITS World Congress, so you might expect something special on the ITS Austria stand. Well you are not going to be disappointed! About 40 Austrian companies will be represented on Stand E10 to show their products and services. For example, together with the Vienna Transport Authority, Telereal will show its ‘multi-sensual’ sign system, a new type of info point for people with hearing, visual or physical impairments.
  • Berghaus highlights portable traffic engineering at Intertraffic
    February 6, 2014
    Peter Berghaus will use Intertraffic Amsterdam 2014 to present its latest portable traffic engineering products. These include the MPB 3400 construction site traffic light with quartz, cable or radio control for simultaneous use of various modes such as request, fixed phase and green on request. Further signal heads can be simply added for controlling alternating one-way, or crossroads, traffic. Berghaus will also be presenting its export hit, the MPB 1400, with LED technology, incorporating quartz control
  • Next Generation mobile computers launched by 4P
    November 19, 2013
    4P Mobile Data Processing is launching the latest versions of its FDA600-POS all-in-one handheld computer devices at CARTES 2013. The new machines “feature fiscal cash registers, chip&pin payments and biometric signature capture,” says 4P. The units are “light, compact and durable,” and allow “operators to track goods, people and locations with barcodes and RFID, shoot and geotag pictures, (create) videos and auto-ID, and stay permanently connected to remote servers via high speed wireless data”. There is a
  • Benefits of SMART Signal system
    October 17, 2012
    Developed by researchers led by civil engineering associate professor Henry Liu at the University of Minnesota, the SMART Signal (Systematic Monitoring of Arterial Road Traffic Signals) system is said to be reducing congestion on roads controlled by traffic lights. The system automatically collects and processes data from traffic signal controllers at multiple intersections. It then creates performance measures, including information on the times and locations congestion occurs on a given road. Traffic eng