What are the regulations and requirements for installing a stop sign in Russia?

In Russia, the regulations and requirements for installing a stop sign are determined by the State Traffic Safety Inspectorate (STSI). The process typically involves submitting an application to the local STSI office, providing justification for the need of the stop sign, and obtaining approval from the relevant authorities. Additionally, the stop sign must meet specific size, color, and visibility standards as outlined in the Russian traffic regulations.