US 401 Interim Improvements Analysis


Capital Area MPO


Raleigh, NC


Environmental Assessment, Environmental Services, GIS/Mapping, Transportation Planning

Project Description

DAVENPORT was retained by the Capital Area Metropolitan Planning Organization (CAMPO) to perform a hot spot study for the intersections of US 401 at Ten-Ten Road, and US 401 at Hilltop-Needmore Road. The intersections, located south of Raleigh along the US 401 corridor north of SR 42, were experiencing significant delay and operational deficiencies. Traffic was anticipated to increase at these intersections with the expected continuation of growth in the surrounding area. Long-range plans were in place by NCDOT to eventually widen the roadway to six lanes with a superstreet configuration. DAVENPORT was tasked with identifying interim improvements to improve safety and operation of the intersections until the roadway widening project moved forward.  

DAVENPORT’s team assessed the intersections to determine existing and future conditions to aide in identifying feasible and low-cost solutions to improve the operations and safety of the intersections. Future year analyses were carried out for short-term conditions in 2020 and long-term conditions in 2040. The improvement options were assessed for their ability to improve the level-of-service at the intersection, as well as having minimal impacts to natural and cultural resources. Planning-level cost estimates were also prepared for each improvement option.


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