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.

For more information on companies in this article

Related Content

  • Design contract for new Windsor-Detroit bridge awarded
    August 22, 2014
    Delcan has been awarded a nearly US$1 million contract to determine the best way to provide tolling and traffic information on the much-anticipated Windsor-Detroit bridge, to be built between Windsor, Ontario and Detroit, Michigan. The Windsor-Detroit Bridge Authority has hired Delcan to come up with a preliminary design for both tolling and intelligent transportation systems that will warn drivers about poor weather, traffic accidents and other congestion problems once the bridge is open. The contra
  • Kapsch gains acceptance in SoCal
    September 19, 2022
    All-electronic tolling systems on I-15 and SR-91 have reduced congestion, firm says
  • It’s official: 20 (or 30) really is plenty
    April 30, 2025
    A study has looked at what 20mph (30 km/h) speed limits mean in terms of road safety – and the answers are encouraging. Alan Dron speaks to transport researcher Aud Tennøy…
  • MH Corbin says CONNECT:ITS is right tool
    June 7, 2018
    For safety on roads of the future, the new CONNECT:ITS System from MH Corbin is the right tool to communicate advanced warnings in real time. CONNECT:ITS System is engineered to be a simple-to-use low-power advanced roadside information system. The company, based in Plain City, Ohio, says that the CONNECT:ITS System can also be scaled up or down for a customised solution based on specific application needs. Live demonstrations will take place on the MH Corbin stand to show the advantages of CONNECT:ITS as