Traffic Signals The City of Salisbury Traffic Operations Division maintains all traffic signals in Salisbury.
Flashing Yellow Arrow Turn Signals
The City and NCDOT have begun to install flashing yellow arrow signal lights at intersections to address safety concerns for vehicles making a left turn. The traffic signals have four vertical lights and will replace the existing five-section signal heads. The traffic signal will include:
- Solid Red Arrow – Stop. No left turns allowed.
- Solid Yellow Arrow - Prepare to stop.
- Flashing Yellow Arrow - Left turns are allowed, but first yield to oncoming traffic and pedestrians.
- Solid Green Arrow - Left turns protected. Proceed with caution.
The benefit of flashing yellow arrows is that they clearly communicate to drivers in the left-turn lane that they do not have the right-of-way and must look for approaching traffic before turning. They can also improve traffic flow.
Flashing yellow arrow traffic signals have been tested statewide and have been used with great success in Fayetteville, Charlotte and Wilmington.
Requirements for a New Traffic Signal
To justify installing or upgrading a traffic signal, a location must meet certain criteria, or warrants. The Manual on Uniform Traffic Control Devices is a traffic control guide by the United States Department of Transportation and the Federal Highway Administration that provides standards for signs, signals, markings and other traffic control devices. The manual lists nine criteria for a traffic signal installation, at least one of which must be met to justify consideration. Even if an intersection meets one or more criteria, an engineering study is needed to determine whether a traffic signal is justified.
- 8-hour vehicular volume
- 4-hour vehicular volume
- Peak hour
- Pedestrian volume
- School crossing
- Coordinated signal system
- Crash experience
- Roadway network
- Intersection near a grade crossing
Traffic signals do not always prevent collisions. In many instances, the frequency of rear-end and side-swipe collisions will increase when signals are installed. Right-angle and left-turn collisions usually decrease.
The North Carolina Department of Transportation (NCDOT) and/or the City, sometimes require developers to pay for and install traffic signals that their projects make necessary. Examples include the intersection of Jake Alexander Boulevard and Castlewood Drive and Freeland Drive and Arlington Street. New traffic signals are also occasionally installed, or existing signals are modified, as parts of highway construction projects.
Requesting a Traffic Signal
Requests for a traffic signal should be directed to:
Wendy Brindle, PE
Traffic Operations Manager
The Traffic Operations Division will study the request and make a recommendation. The NCDOT has approval authority for requests involving a street on the state highway system.
The NCDOT Division Traffic Engineer may be contacted at:
375 Silas Creek Parkway
Winston-Salem, NC 27127