Traffic control devices handbook

"The purpose of the Traffic Control Devices Handbook (the Handbook or TCDH) is to augment the Manual on Uniform Traffic Control Devices for Streets and Highways (the Manual or MUTCD), as adopted nationally by the United States Federal Highway Administration (FHWA). The Manual outlines the design and application of traffic control devices on roadways in the United States. However, criteria and data to make decisions on the use of a device and its application are not always fully covered in the Manual. This Handbook bridges the gap between the Manual provisions and those decisions to be made in the field on device usage and application"--Provided by publisher.