The Town of Cornelius contracted WSP | Parsons Brinckerhoff to evaluate roadway and safety improvement alternatives along the section of Jetton Road between West Catawba Avenue and Charles Towne Lane. On August 22, 2016, WSP | Parsons Brinckerhoff gave a presentation on the study findings. Read the entire study.
West Catawba Phase 2 Widening
NCDOT has plans to widen West Catawba Avenue from Jetton Road to Highway 73. It is currently estimated that the construction of this project will occur in 2022. At this time, NCDOT is evaluating this corridor and performing analyses of multiple design alternatives for the corridor. These corridor alternatives include superstreet intersections, traditional intersections, and hybrids of the two. See the links below for more information about this project and superstreets.
Traffic Simulation - Intersection of West Catawba Ave./Westmoreland Rd. in 20 years based upon traffic modeling (Afternoon Rush Hour, 2035 traffic with Westmoreland Interchange traffic)
Diverging Diamond Interchange (DDI)
Exit 28 has been approved to be redesigned into a Diverging Diamond Interchange (DDI). The DDI allows two directions of traffic to temporarily cross to the left side of the road while on the bridge over I-77. Once on the left side of the road, vehicles can turn left onto the I-77 ramps without stopping and without conflicting with through traffic, providing easier access to the highway.
A DDI moves high volumes of traffic through an intersection without increasing the number of lanes and traffic signals. This movement promotes intersection safety while meeting conflicting demands for increasing capacity, decreasing congestion and minimizing the cost of new infrastructure. You may see a simulation of a DDI in this YouTube video.