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Comprehensive Plan, City of Paris, Texas Future Land Use The functional classification for roadways employs a hierarchical structure to identify the operation of all roadways within a transportation system. The hierarchy of road -types in ascending order is: local roads, collector roads, arterial roads, and expressways/freeways. Lower level roadways, such as local or collector roads, provide more direct access to property than do higher level roadways, such as arterial roadways or expressways. Roadway classifications dictate the design standards for the construction of a roadway. The function of a roadway, traffic volume, and adjacent land use determine the type of roadway that should support daily traffic activity. The American Association of State Highway Transportation Officials (AASHTO) has developed general roadway design standards in "A Policy of Geometric Design and Highways and Streets." The ability to improve an existing roadway by constructing additional lanes or other improvements to AASHTO standards, however, may be constrained by the existing development in growth areas. The standards summarized below for arterial, collector, and local roadways also reflect locally adopted standards. Local Roadways Local roadways provide direct access to private property. The ideal traffic volume for local roadways is less than 1,500 vehicles per day. The recommended width for a local roadway is 28 feet. The minimum right-of-way is 50 feet. Local roadways serving residential areas should be constructed with an enclosed storm water system. On-street parking is usually permitted. However, in order to meet fire codes, which require a 20-foot path for equipment, parking may be limited to one side of the roadway. Collector Roadways Collector roadways can be further classified as minor collector roadways (two-lane) and major collector roadways (three-lane). The two-lane collector roadway functions to collect traffic in residential neighborhoods. Because traffic volumes on two-lane collector roadways may range between 1,500 and 5,000 vehicles per day, residential properties abutting the collector road may not be as desirable as those abuttina a local road. The road width should accommodate two 16- foot lanes and curb and gutter for a width of 36 feet. To accommodate sidewalks and street lighting, a minimum right-of-way of 60 feet is needed. Depending on local conditions such as traffic volumes, up to an 80' right-of-way may be warranted. Parking and private access to the collector should be discouraged. If needed, parking should be allowed on one side only. A three-lane collector roadway section is appropriate for collecting traffic in commercial land use areas, such as a business park or shopping center where traffic demand is expected to range between 1,500 and 12,000 vehicles per day. A collector road section includes two 12-foot through lanes, and can be widened by adding one 12-foot center left turn lane. The recommended road width for a three-lane collector including curb and gutter is 40 feet. Sidewalks should be provided on both sides. The right-of-way width to allow for the roadway, sidewalks and street lighting should be 80 feet. On-street parking should be prohibited. S:\98288\WPClfinat rcport 2-01.(k)c 37 BWR