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2008 Mounds View Comprehensive Plan ________________________________________________________________________ Chapter 6: Transportation 6-10 of functional classification with regard to traffic mobility and land access is shown in Figure 14 on page 6-13. Principal Arterials The relationship Principal arterial roadways serve major activity centers, higher traffic volumes, longer trips and carry a higher proportion of total urbanized travel on a minimum of mileage. Along these facilities, the City and other agencies need to limit access to preserve the ability of the roadway to accommodate the volumes and to maximize safety. The management criteria require that a 40 mph average speed be achieved during peak traffic periods. Also, little or no direct land access should be allowed to these roadways. Grade separated intersections are required for freeways and highly desired for other principal arterial roadways. In Mounds View there are two roadways classified as principal arterials - Interstate 35W and US Highway 10. Minor Arterials Minor arterial roadways connect the urban service area to cities and towns inside and outside the region and generally service medium to short trips. Minor arterials connect principal arterials, minor arterials, and collectors. The spacing ranges from ¼ to ¾ of a mile in metro centers to 1-2 miles in a developing area. The desired minimum average speed during peak traffic periods is 20 mph in fully developed areas and 30 mph in developing areas. The emphasis for minor arterial roadways is on mobility rather than on land access. In urban areas, direct land access is generally restricted to concentrations of commercial/industrial land uses. Minor arterials are divided into “A” minor arterials and “B” minor arterials. “A” minor arterials are roadways that are of regional importance because they relieve, expand, or complement the principal arterial system. “A” minor arterials are categorized into four types, consistent with Metropolitan Council guidelines: • Augmenters – Roadways that augment principal arterials within the I-494/I-694 beltway. There currently are no augmenter roadways in Mounds View. • Relievers – Minor arterials that provide direct relief for metropolitan highway traffic. County Highway 10 is an example of an “A” minor reliever in Mounds View. • Expanders – Routes that provide a way to make connections between urban areas outside the I-494/I-694 beltway. Silver Lake Road is classified as an “A” minor expander within the city. • Connectors – Roads that provide good, safe connections to and among communities at the edge of the urbanized area and in rural areas. There are no connector roadways within the City.