Skip to main content

NCDOT to install advance traffic warning system on I-277

The North Carolina Department of Transportation (NCDOT) is to install an advance warning system on the Interstate 277 (I-277) outer loop between Tryon Street and Interstate 77 in Charlotte, North Carolina. This system will detect traffic data such as volume and speed, alerting motorists to backups that frequently occur on the ramp from I-277 outer to I-77 north. The $188,000 project was awarded to Consolidated Power of Mooresville, who will install the detection warning system, consisting of two microwave
October 16, 2012 Read time: 2 mins
The 4775 North Carolina Department of Transportation (NCDOT) is to install an advance warning system on the Interstate 277 (I-277) outer loop between Tryon Street and Interstate 77 in Charlotte, North Carolina.

This system will detect traffic data such as volume and speed, alerting motorists to backups that frequently occur on the ramp from I-277 outer to I-77 north.

The $188,000 project was awarded to Consolidated Power of Mooresville, who will install the detection warning system, consisting of two microwave vehicle detection (MVD) units and two flashing LED beacons.  The MVD units will collect traffic data and send it to a processor on site for analysis; the system will then send a message to activate one or both of the flashing beacons.

Once traffic reaches speeds below 20 mph, the first beacon near the I-77 North exit ramp will activate. If traffic continues to back up toward Tryon Street, the second beacon will be activated. The contract also requires additional signage warning motorists of slow or stopped traffic.

NCDOT operates other similar detection systems on NC 58 in Carteret County, on I-26 in Polk and Henderson Counties, and on I-40 in Iredell County.

Related Content

  • May 8, 2015
    Low-costs solutions to improve pedestrian safety
    David Crawford welcomes low-cost safety initiatives for pedestrians in America. Some 10 people die each week in accidents on crosswalks in the US, that’s more than 10% of all pedestrian fatalities in road traffic incidents - the number of which is running at a five-year high. Ensuring crosswalks are safe is key in supporting the growing enthusiasm for walking as a travel mode. In the last decade of the 20th century, numbers walking to work in the US fell by 26%; while, as recently as 2012, Americans were e
  • July 22, 2020
    Wrong-way drivers? Use thermal cameras says ADoT
    Arizona pilot scheme to identify wrong-way vehicles has been a success
  • November 20, 2013
    Automated enforcement tames speeders in Chicago’s Children’s Safety Zones
    Chicago is installing automated enforcement after pilot schemes indicated that one in 10 motorists exceed the speed limits in Children’s Safety Zones. Each year in Chicago there are around 3,000 incidents of pedestrians being struck by a motor vehicle - and about 800 of those casualties are children. In an effort to improve child safety the Chicago Department of Transportation (CDOT) has established Children’s Safety Zones around schools and other areas where children congregate. These zones allow the impos
  • September 26, 2019
    Sign language reduces human error says Clearview
    Wrong-way warning systems and advanced queue detection can help to reduce human error. They can also cut road accidents – and therefore road deaths, says Clearview Intelligence Where were nearly 1,800 deaths on the UK’s roads in 2018 – an average of five people dying each day. The largest single cause of serious injury is crashes at junctions (accounting for 33% of incidents), while the largest single cause of death was run-off road crashes (30%) “With vehicles increasingly being designed with saf