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Chapter 6: Transportation / 51 <br />Elk River Comprehensive Plan <br />There are four roadway types within Elk River: principal arterials, minor arterials, collectors <br />and local streets. Each roadway plays an important role in the system. Figure 6-4: Access <br />versus Mobility shows the traits associated with the various functional classes. The roles are <br />discussed below. <br />Principal Arterial: There are three principal arterial routes within <br />the City of Elk River, TH 101, US 10 and US 169. In general, <br />principal arterials provide the greatest connectivity (link counties <br />and/or states), have signifi cant continuity at a state or regional level, <br />serve longer trips (through traffi c), and generally have higher posted <br />speeds and less access. They typically only connect with other <br />principal and minor arterial routes and some select collectors. In <br />some instances principal arterials are freeways (interchange access <br />only) and in other locations they have at-grade intersections. <br />Minor Arterial: Existing minor arterial routes within the City include <br />CSAH 1, CSAH 12, CSAH 13 and Jackson Avenue. Generally <br />minor arterial routes are state or county facilities (with a few select <br />city roadways) that connect key activity centers and nodes and <br />have continuity on a county level. They generally serve medium to <br />long trips and they typically have higher posted speeds and more <br />restrictive access than collector or local streets. Minor arterials <br />generally connect to principal arterials, other minor arterials and <br />collectors. <br />Collector: Collector roadways (e.g., Tyler Street and CSAH 1) <br />provide links to local activity centers and connections between <br />arterial routes and local city streets. These roadways are intended <br />to bring traffi c from various nodes and funnel it to the arterial <br />network. Collector streets have continuity at a local level and <br />generally serve medium to short trips. They serve a variety of land <br />uses and can therefore have a variety of speeds. In general, an <br />equal emphasis is placed on mobility and access. <br />Local Street: The remaining roadways are considered local <br />streets (e.g., Zane Street and 8th Street). Local streets provide <br />connections to neighborhoods, developments and to other streets. <br />There is generally low continuity (many cul-de-sacs), low speeds, <br />access is emphasized and a small travelshed. <br />Figure 6-4: Access versus Mobility <br />Source: A Policy on Geometric Design <br />of Highways and Streets, AASHTO, <br />2011 AASHTO Green Book <br />Proportion of Services <br />MobilityArterials <br />Collectors <br />LocalsLand Access