Design & Construction Specifications - Town of Kernersville

Collector, Sub-Collector and Commercial StreetThe primary design concerns are directed toward fostering a safeenvironment for the adjacent land users and convenience to the motoringpublic. Emphasis is placed on site distance at intersections, drivewayaccesses, and horizontal and vertical curves. Emphasis is also placed onthe ease of ingress and egress at intersections with higher classificationstreets.Marginal Access StreetMarginal Access Streets are designed to provide primary or secondaryaccess to properties in which the other street classifications are deemedinappropriate. Design shall accommodate the vehicle type and quantityexpected to use the facility. The Public Works Director will determine theright-of-way width, roadway section, street width, and design criteria basedon the surrounding land use, character of the terrain, utility locations,structure locations, and environmental constraints.Industrial Street and Industrial Cul-de-sacThe primary design concerns are directed toward fostering a safeenvironment to the adjacent land users and convenience to the motoringpublic. Emphasis is placed on providing adequate stopping site distance atintersections, driveway accesses, and horizontal and vertical curves.Emphasis is also placed on providing adequate turning radius, tapers,storage lanes and structural integrity of the street.The maximum length of an individual cul-de-sac street allowed is 1200 feetmeasured from the intersecting centerline from another street to the centerof the turnaround. Circular turnarounds are recommended as permanentturnarounds; however, permanent “T” turnarounds designed to facilitate theturning movement of a tractor pulling a 48’ trailer may be considered whenthe existing topography prohibits construction of a circular turnaround.Major and Minor ThoroughfaresThe primary design concerns are directed toward fostering a safe andconvenient environment for through traffic motorist. Emphasis is placed onalignment, spacing and full service access to street classifications ascollectors or higher. Emphasis is also placed on providing adequate turningradius, tapers, storage lanes, structural integrity and compliance to theTowns thoroughfare plan.