Pursuant to Section 21-809 of the Transportation Article of the Annotated Code of Maryland, as may be amended from time to time, Prince George's County is authorized to use Speed Monitoring Systems, as set forth in Section 26-114.01 of this Code and Residential District Speed Monitoring Systems as set forth in Section 26-114.02 of this Code to regulate traffic. "Residential district" means an area that: (1) Is not a business district; and (2) Adjoins and includes a highway where the property along the highway, for a distance of at least 300 feet, is improved mainly with residences or residences and buildings used for business, pursuant to Section 21-101 of the Transportation Article of the Annotated Code of Maryland. Section 21-809 of the Transportation Article of the Annotated Code of Maryland applies to a violation of Subtitle 8, Speed Restrictions of the Transportation Article of the Annotated Code of Maryland, as applied in Prince George's County, recorded by a speed monitoring system that meets the requirements of Section 21-809 and has been placed in Prince George's County, on a highway in a residential district, as defined in Section 21-101 of the Transportation Article of the Annotated Code of Maryland, with a maximum posted speed limit of up to and including 35 miles per hour, which speed limit was established using generally accepted traffic engineering practices. A residential district speed monitoring system may not be used in a local jurisdiction under Section 21-809 of the Transportation Article of the Annotated Code of Maryland unless its use is authorized by the governing body of the local jurisdiction by local law enacted after reasonable notice and a public hearing. The Director of the Department of Public Works and Transportation, in conjunction with the Chief of Police and the County Council is authorized to determine those locations where residential district speed monitoring systems are to be installed. The Director shall consult with the Police Department and the Department shall respond, in writing, within six months of a request from a County Councilmember, as to a final decision regarding whether the Department will install speed monitoring systems on a particular location of roadway and include an estimated time for installation. All residential district speed monitoring systems shall conform to, and be used in accordance with, the requirements of the Transportation Article of the Annotated Code of Maryland.