Speed_Cushion_Detail.pdf

This is a technical specification document prepared by the City of Pittsburgh Department of Mobility and Infrastructure for a Traffic Calming contract solicitation managed by the Office of Management and Budget. The document provides detailed engineering drawings and specifications for speed hump and speed cushion installations, which are traffic calming devices designed to reduce vehicle speeds in residential and commercial areas. The specifications include two primary design details: a Speed Hump Wedge Curb Detail and a Standard Curb Detail, both dated 04/26/2022, with an earlier version dated 5/29/2019. The drawings specify precise measurements for installation, including 12-inch and 24-inch dimensions for the speed hump profile, milling requirements of 1.5 inches minimum into existing asphalt, and sealing specifications using AC20 asphalt concrete. The document is presented at a "Not To Scale" (NTS) reference and spans two sheets of detailed construction specifications.

The technical specifications establish the physical parameters and construction standards that bidders must adhere to when submitting proposals for traffic calming installations throughout Pittsburgh. The document does not contain pricing information, set-asides, or funding details in the provided materials, but serves as the engineering baseline for determining material quantities, labor requirements, and project scope. Contractors bidding on this Traffic Calming opportunity must design and execute installations that conform precisely to the City's specifications for speed humps and speed cushions, ensuring consistency and safety across multiple installation locations within the municipality.