(a) The department may install, maintain, and operate traffic signals on the state highway system in unincorporated areas when requested by anyone and provided that the location or locations meets one or more of the warrants for highway traffic signals contained in the current Texas Manual on Uniform Traffic Control Devices for Streets and Highways.
(b) The department may install, maintain, and operate traffic signals on the state highway system in incorporated cities of less than 50,000 population (latest federal census) when requested by the city council, mayor, or city manager and on frontage roads and at interchanges of freeways of the state highway system within incorporated cities and provided that the location or locations meets one or more of the warrants for highway traffic signals contained in the current Texas Manual on Uniform Traffic Control Devices for Streets and Highways and that the city agrees to enter into an agreement setting forth the responsibilities of each party.
(c) The department is responsible for authorizing traffic signals to be installed at locations on the state highway system other than freeways in incorporated cities of 50,000 or more population (latest federal census), provided that the locations meet one or more of the warrants for highway traffic signals contained in the current Texas Manual on Uniform Traffic Control Devices for Streets and Highways. The cost of installation, operation, and maintenance of these signals is the responsibility of the city, except that the department may provide for the installation of traffic signals when the installation is financed in part with federal-aid funds and the city agrees to enter into an agreement setting forth the responsibilities of each party.

Source Note: The provisions of this §25.5 adopted to be effective January 1, 1976; amended to be effective July 19, 1976, 1 TexReg 1849; amended to be effective June 29, 1987, 12 TexReg 1934.