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Appendix D: Street Classification System 175 Appendix D: Street Classification System Introduction The functional classification of a street depends on its purpose and role in serving transportation mobility, access, and circulation needs. Streets may: • Connect Redmond’s urban centers to other parts of the region. • Connect neighborhoods with urban centers. • Provide internal circulation within neighborhoods. The functional classification also considers the role of each corridor in supporting Redmond’s multimodal transportation system. The street design is based on its functional classification. Redmond’s functional classification system organizes streets into the following categories: • The SR 520 Freeway • Principal Arterial • Minor Arterial • Collector Arterial – Connectors – Local Access – Shared Streets SR 520 Freeway The SR 520 Freeway is a high-capacity, high-speed highway connecting Redmond with the region. SR 520 is the city’s most significant multimodal corridor and serves as the alignment for the East Link light rail line between Redmond and Seattle. Furthermore, the SR 520 Trail along SR 520 is a priority pedestrian/bicycle corridor. The SR 520 Freeway requires massive infrastructure and wide rights-of-way (up to 300 feet or more) and is intended to carry heavy volumes of traffic at high speeds, including a relatively large percentage of trucks. The freeway is a limited access highway. Adjacent land uses include commercial office and retail uses, residential uses, open space, parks, and industrial uses. SR 520 terminates at Avondale Road, a principal arterial. All interconnections with other roadway classifications are accomplished through grade-separated interchanges. The SR 520 Freeway is a divided highway with at least two general purpose and one HOV lane in each direction. Lanes are at least 12 feet wide with inside and outside paved shoulders provided. Design geometry is based on relatively high travel speeds. There are no at-grade pedestrian crossings and no bike lanes adjacent to vehicular travel lanes. In certain instances bicycles may be allowed to utilize paved shoulders or may be accommodated in separate trail facilities within the right-of-way. Traffic calming and speed reduction measures are not applicable to the SR 520 Freeway. Noise and visual mitigation measures may be appropriate in specific settings. Interchanges are to be located far enough apart to safely accommodate merging and weaving maneuvers. ---PAGE BREAK--- Appendix D: Street Classification System 176 The SR 520 Freeway will continue to accommodate regional and interregional transit routes and the SR 520 Trail will continue to provide safe travel for cyclists and pedestrians. Principal Arterial A principal arterial provides capacity and continuity for travel between different areas of the region. Adjacent land uses may include residential and commercial areas, open space, public lands, industrial sites, and institutional sites. The activity center for a neighborhood will often be located along a principal arterial or at the intersection of a principal arterial with another principal arterial or a collector arterial. Principal arterials connect typically with freeways or other principal arterials. Direct connections with other roadways are provided via at-grade intersections. Principal arterials may have as many as four through lanes, but will generally be designed as divided facilities with a center median. Turn lanes will be provided as turning movements warrant and may include left turn lanes and right turn lanes, or in five-lane or three-lane configurations may include a two-way continuous left turn lane. Clearly marked crosswalks will be provided at all legs of every signalized intersection unless their absence is warranted. On-street bicycle lanes may be provided even if alternative, close-by, parallel facilities are available. Sidewalks will be included on both sides of the street and will be separated from vehicle lanes by a buffer strip. While serving as the separation between vehicles and pedestrians, the buffer strip will use vegetation to treat stormwater runoff using rain gardens or bioswales. Traffic calming and speed reduction measures are generally not applicable to principal arterials. Principal arterials will be designed with partial control of access through the City’s access management system. On-street parking will not generally be allowed. Principal arterials shall provide for transit circulation and access, including bus stops and bulb-outs. Pedestrian facilities in the corridor including connections to transit, will be designed to provide safety and comfort, and standards may increase in pedestrian zones. Minor Arterial A minor arterial provides capacity and continuity for travel between different areas of the region, but will not have the capacity and significance of principal arterials. Adjacent land uses may include residential and commercial areas, open space, public lands, industrial sites, and institutional sites. The activity center for a district will often be served by minor arterials and may include the intersections of minor arterials with principal arterials and collector arterials. Minor arterials terminate only at freeways, principal arterials, or other minor arterials. Direct connections with other roadways are provided via at-grade intersections. Minor arterials may have as many as four through lanes and may or may not have median dividers. Turn lanes are provided as movements warrant and may include left turn lanes and right turn lanes, or in a three-lane configuration may include a two-way continuous left turn lane. Clearly marked crosswalks are provided at all legs of every signalized intersection unless their absence is warranted. On-street bicycle lanes may be provided even if alternative, close-by, parallel facilities are available. Sidewalks will be included on both sides of the street and will be separated from vehicle lanes by a buffer strip. While serving as the separation between vehicles and pedestrians, the buffer strip will use vegetation, such as rain gardens or bioswales, to treat stormwater runoff. Traffic calming and speed reduction measures are generally applicable to minor arterials only in areas where sensitive land uses (residential property, schools, public parks, and certain other public institutions) directly abut the roadway or are nearby. Minor arterials will be designed with partial control of access through the City’s access management system. On-street parking will be allowed only in commercial areas. ---PAGE BREAK--- Appendix D: Street Classification System 177 Minor arterials shall include provisions for transit circulation and access, including bus stops and bulb- outs. Pedestrian facilities in the corridor will be designed to provide safety and comfort, and standards may increase in pedestrian zones. Collector Arterial A collector arterial receives traffic from connectors and local streets and provides access to principal arterials. Collectors are generally not intended to serve regional trips and generally do not provide route continuity for more than a mile or two. These roadways are generally contained entirely within the city and connect neighborhoods with each other. Adjacent land uses may include residential areas, commercial areas, open space, public lands, industrial sites, and institutional sites. Collectors terminate only at principal arterials, minor arterials, or other collector arterials. Direct connections with other roadways are provided via at-grade intersections. Collector arterials have two through/general purpose lanes without a center median. Turn lanes are provided as turning movements warrant, and may include left turn lanes and right turn lanes, or in a three-lane configuration may include a two-way continuous left turn lane. Clearly marked crosswalks are provided at all legs of signalized intersections and in the vicinity of schools unless their absence is warranted. On-street bicycle lanes may be provided even if alternative, close-by, parallel facilities are available. Sidewalks to treat stormwater runoff are included on both sides of the street and are separated from vehicle lanes by a buffer strip. While serving as the separation between vehicles and pedestrians, the buffer strip will use treatment such as rain gardens or bioswales. Traffic calming and speed reduction measures are applicable to collector arterials, primarily in areas where sensitive land uses (residential property, schools, public parks, and certain other public institutions) directly abut the roadway or are nearby. Collector arterials will be designed with partial control of access through the access management system. On-street parking will be allowed only in commercial areas. Collector arterials shall include provisions for transit circulation and access, including bus stops and bulb-outs. Pedestrian facilities in the corridor will be designed to provide safety and comfort, and standards may increase in pedestrian zones. Local Streets There are three types of local streets listed in hierarchal order: connectors, local access, and shared streets. Connectors Connectors are specially designated local streets that provide for direct vehicle, bicycle, and pedestrian connections between adjacent neighborhoods, and between neighborhoods and commercial areas. Connectors do not serve trans-regional trips and provide no route continuity beyond the areas they serve. Adjacent land uses may include residential areas, commercial areas, open space, public lands, industrial sites, and institutional sites. Connectors terminate at collector arterials, minor arterials, and/or local streets. Direct connections with other roadways are provided via at-grade intersections. Connectors have only two through/general purpose lanes. Turn lanes will not be provided unless unusual circumstances warrant, in which case they may include left turn lanes only. Bicycle circulation will typically be accommodated in lanes shared with motor vehicle traffic. Sidewalks are included on both sides of the street and are separated from vehicle lanes by a buffer strip. While serving as the separation between vehicles and pedestrians, the buffer strip will use treatments such as rain gardens or bioswales to treat stormwater runoff. ---PAGE BREAK--- Appendix D: Street Classification System 178 Traffic calming and speed reduction measures may be used on connectors as warranted by adjacent land uses and traffic characteristics. Connectors are designed with partial control of access through the access management system. On-street parking will be allowed where adequate roadway width is available. The City may map and specify future connector alignments and may require dedication of rights-of-way for these facilities. Local Access Local access streets provide direct connections to and within single-family neighborhoods and typically terminate at connector or collector streets. These streets provide for direct vehicle, bicycle, and pedestrian access to commercial and residential land uses. Local streets do not serve regional trips and provide no route continuity beyond the areas they connect. Adjacent land uses may include residential properties, commercial areas, industrial sites, and institutional sites. Local streets may terminate at principal arterials, minor arterials, collectors, connectors, or other local streets. Direct connections with other roadways are provided via at-grade intersections. Local streets have only two through/general purpose lanes. Left turn lanes may be provided only in unusual circumstances. Clearly marked crosswalks are provided at signalized intersections or at other locations where warranted because of the proximity of schools or significant pedestrian activity. On-street bicycle lanes will not be provided; rather, bicycle circulation will be accommodated in lanes shared with motor vehicle traffic. Sidewalks are included on both sides of the street and will be separated from vehicle lanes by an appropriate buffer strip. Traffic calming and speed reduction measures are applicable to local streets as warranted by adjacent land uses and traffic characteristics. Local streets are designed with partial control of access through the access management system. On- street parking will be allowed where adequate roadway width is available. Shared Streets Shared streets are slow-speed streets shared by pedestrians, cyclists, and vehicles. Shared streets allow people to use the public right-of-way for a variety of activities during the course of a typical day and enjoy the outside active life. In a shared street, every user yields to any more vulnerable user. Pedestrians may use the full width of the street within an area defined as a shared street; playing on the roadway is also permitted. Drivers within a shared street may not drive faster than a walking pace. They must make allowance for the possible presence of pedestrians, including children at play, unmarked objects and irregularities in the road surface, and the alignment of the roadway. In Redmond, some local streets will be transitioned to shared streets, which are appropriate on a residential, limited use, or other low-volume street, where the neighborhood desires to create a public space for social activities and play. Shared streets are also appropriate on streets with commerce where there is a desire to create an active and attractive people-oriented area. Shared streets have: • Special paving and surface treatment to identify these streets as unique people places. • Flush or reduced curb height and nonexistent curb sidewalk to encourage pedestrians to use the entire street rather than street edges. • Narrow vehicular lanes to create a safe and comfortable environment for pedestrians and cyclists. • Chicanes to slow drivers by adding curves to the travel lane to indicate that they are entering a pedestrian area. • High-quality and artistic street furniture to announce that people are welcome and create a friendly pedestrian environment. • Plants to increase the quality of the urban space and the pedestrian experience. ---PAGE BREAK--- Appendix D: Street Classification System 179 148th AVE NE NE 124th ST BEL-RED RD AVONDALE RD NE RED-WOOD RD NE REDMOND WAY NE 90th ST NE 128th ST 154th AVE NE NE 124th WAY BEAR CREEK PKWY AVONDALE RD NE REDMOND WAY WILLOWS RD NE NE 40th ST 156th AVE NE NE 51st ST W LK SAMMAMISH PKWY 140th AVE NE UNION HILL RD NE 85th ST 152nd AVE NE REDMOND WAY 188th AVE NE LEARY WAY NE 24th ST NE 20th ST 188th AVE NE 166th AVE NE NE 104th ST 185th AVE NE NE 116th ST 160th AVE NE 150th AVE NE NE 76th ST NE 80th ST NE 83rd ST NE 36th ST 156th AVE NE NE 111th ST 180th AVE NE 154th AVE NE 162nd AVE NE 172nd AVE NE NE 116th ST NE 70th St NE 68th St NE 95th ST 181st AVE NE 172nd AVE NE NE 122nd ST NE 99th ST 151st AVE NE NE 61st ST NE 88th ST NE 46th ST NE 74th ST 157th AVE NE NE 120th ST 184th AVE NE NE 87th ST 137th AVE NE 180th AVE NE NE 100th ST NE 107th ST NE 75th ST 152nd AVE NE NE 124th ST NE 36th ST NE 106th ST 174th AVE NE 149th PL NE 154th PL NE NE 76th ST NE 50th ST 175th AVE NE BLOMSKOG RD NE 84th ST 156th PL NE 173rd PL NE NE 77th ST NE 108th ST 186th AVE NE NE 28th ST 178th AVE NE NE 111th ST NE 45th ST 174th PL NE NE 70th ST NE 93rd ST NE 101st PL NE 111th CT NE 44th CT 152nd CT NE NE 57th ST NE 65th WAY 167th AVE NE 159th AVE NE 158th AVE NE 141st AVE NE NE 33rd ST 186th CT NE 149th AVE NE NE 85th PL 176th CIR NE NE 97th ST 173rd CT NE NE 103rd ST 177th AVE NE 159th PL NE 133rd AVE NE 182nd AVE NE NE 65th ST 170th PL NE NE 104th ST 132nd PL NE NE 64th ST NE 21st ST NE 37th ST 179th CT NE NE 105th ST 162nd PL NE NE 44th WAY NE 105th CT NE 119th WAY NE 98th WAY NE 92nd ST NE 85th CT NE 96th PL NE 93rd CT 145th CT NE NE 66th ST NE 112th PL 160th PL NE 177th PL NE 184th CT NE 149th AVE NE 159th AVE NE 159th PL NE 179th Ave NE SR 520 EB SR 520 WB ¯ y 0 1 0.5 Mile Principal Arterials Minor Arterials Collector Arterials Local Streets Connector Streets Freeway Proposed connections Figure 60. Functional classifications for streets Roadway Functional Classifications See Figure 61, page 180 ---PAGE BREAK--- Appendix D: Street Classification System 180 Roadway Functional Classifications Figure 61 Functional classifications for streets - Marymoor Village ---PAGE BREAK--- Appendix D: Street Classification System 181 Where appropriate, curb extensions, gateways, pedestrian lighting, art, and play elements are used to improve safety and entice people to enjoy shared street. Shared street will not provide entrance to garages or loading/unloading docks. Streets designated as shared streets are shown in Zoning Code, Exhibit A. Downtown Chapter, Pedestrian System, page 74 of 87. This can be found at http://zoningplus.com/regs/redmond/media/ files/PDF/Map10_3_RZC_20130216.pdf. Figure 60 and 61 and Tables 14 through 17 define the functional classification for all streets in the City of Redmond except local streets. Tables 14 through 17 also identify the number of future general purpose through lanes and modal priorities except that of pedestrians (which are covered in Chapter 4: Pedestrian System). Modal priorities correspond to modal corridors designated in Figure 28 of Chapter 4. Abbreviations are used in indicating modal priorities: A - Automobile, B - Bike, and T - Transit. Table 14. Principal arterial streets Principal Arterial Streets The Number of Future General Purpose Through Lanes Modal Priorities Avondale Road NE (Avondale Way to Avondale north city limits) 4 A, B, T Avondale Road NE (Union Hill Road to Avondale Way) 4 A, T Bear Creek Parkway (Redmond Way west to Redmond Way east) 4 A Bel- Red Road (NE 20th Street to West Lake Sammamish Parkway) 4 NE 90th Street- 154th Avenue NE to 160th Avenue NE 4 A, T NE 90th Street - 160th Avenue NE to Red-Wood Road 2 A NE 90th Street - Willows Road to 154th Avenue NE 2 A, T Redmond Way (east city limits to Bear Creek Parkway east) 4 A Redmond Way (west city limits to Bear Creek Parkway West) 4 A Redmond-Woodinville Road - NE 90th Street - NE 116th Street 2 A Redmond-Woodinville Road - NE 116th Street - NE 124th Street 2 A West Lake Sammamish Parkway NE – NE 51st Street to Redmond Way 4 A, B West Lake Sammamish Parkway NE - Bel-Red Road to NE 51st Street 4 A, B 124th Avenue NE - Willows Road to Avondale Road 2 A 148th Avenue NE - NE 20th Street to Willows Road 4 A, T 154th Avenue NE - NE 85th Street to NE 90th Street 2 A 154th Avenue NE – West Lake Sammamish Parkway to NE 85th Street 4 A, T ---PAGE BREAK--- Appendix D: Street Classification System 182 Minor Arterial Streets The Number of Future General Purpose Through Lanes Modal Priorities Avondale Way NE (Avondale Road NE to NE 79th Street) 3 A, T Avondale Way (NE 79th Place to Redmond Way) 3 B East Lake Sammamish Parkway NE (Redmond Way to 187th Avenue NE) 2 Leary Way NE (NE 76th Street to NE 80th Street) 2 Leary Way NE (West Lake Sammamish Parkway to NE 76th Street) 4 NE 20th Street (148th Avenue NE to Bel-Red Road) 4 A NE 24th Street (148th Avenue NE to Bel-Red Road) 3 P NE 24th Street - city limits to West Lake Sammamish Parkway NE 2 T NE 31st/NE 36th Streets (152nd Ave NE to 156th Ave NE) 2 T NE 40th Street (SR 520 to West Lake Sammamish Parkway) 4 B, T NE 40th Street (west city limits to SR 520) 4 T NE 51st Street (148th Avenue NE to 156th Avenue NE) 4 T NE 51st Street (156th Avenue NE to West Lake Sammamish Parkway) 2 NE 80th Street - Leary Way to 164th Avenue NE 2 B NE 85th Street (154th Avenue NE to 161th Avenue NE) 2 T NE 85th Street (161st Avenue NE to 166th Avenue NE) 2 NE Union Hill Road (east city limits to 188th Avenue NE) 4 A NE Union Hill Road (188th Avenue NE to Avondale Way) 4 A Novelty Hill Road (east city limits to Avondale Road NE) 4 Old Redmond Road (west city limits to West Lake Sammamish Parkway) 2 B Redmond Way (Bear Creek Parkway to 170th Avenue NE) 2 Redmond-Woodinville Road (NE 90th Street to Cleveland Street) 2 West Lake Sammamish Parkway NE (Bel-Red Road to NE 40th Street) 2 B West Lake Sammamish Parkway NE (NE 24th Street to south city limits) 2 T West Lake Sammamish Parkway NE (NE 40th Street to NE 24th Street) 2 T Willows Road (NE 90th Street to north city limits) 4 A, T Table 15. Minor arterial streets ---PAGE BREAK--- Appendix D: Street Classification System 183 Minor Arterial Streets The Number of Future General Purpose Through Lanes Modal Priorities Willows Road (Redmond Way to NE 90th Street) 4 A 140th Avenue NE (Redmond Way to south city limits) 2 152nd Avenue NE (NE 20th Street to NE 24th Street) 2 B 152nd Avenue NE (NE 24th Street to NE 31st Street) 2 B, T 156th Avenue NE (NE 51st Street to NE 31st Street) 4 P,T 156th Avenue NE (NE 31st Street to NE 24th Street) 4 T 164th Avenue NE Extension (NE 76th Street to Cleveland Street) 2 170th Place NE/Avenue NE (Redmond Way to Avondale Way) 4 A 188th Avenue NE - between Union Hill Road & Redmond- Fall City Road 2 Collector Arterial Streets The number of Future General Purpose Through Lanes Modal Priorities Cleveland Street (160th Avenue NE to 168th Avenue NE) 2 NE 27th Street/NE 28th Street (150th Avenue NE to 156th Avenue NE) 2 NE 28th Street (Overlake Access Ramp to 152nd Avenue NE) 2 NE 31st Street/NE 36th Street (SR 520 Trail to 152nd Avenue NE) 2 B NE 36th Street (148th Avenue NE to SR 520 Trail) 2 NE 60th Street (154th Avenue NE to 156th Avenue NE) 2 NE 65th St (Marymoor Park to E Lake Sammamish Pkwy NE) 2 NE 67th St (173rd Ave NE to 177th Ave NE) 2 NE 70th St (173rd Ave NE to 180th Ave NE 2-4 NE 76th Street (Redmond Way to 180th Avenue NE) 2 A, T NE 76th Street (180th Avenue NE to 188th Avenue NE) 2 T NE 80th Street (132nd Avenue NE to Redmond Way) 2 NE 83rd Street (158th Avenue NE to 161st Avenue NE) 2 NE 83rd Street (161st Avenue NE to 166th Avenue NE) 2 T Table 16. Collector arterial streets Table 15. Minor arterial streets (continued) ---PAGE BREAK--- Appendix D: Street Classification System 184 Collector Arterial Streets The number of Future General Purpose Through Lanes Modal Priorities NE 104th Street/NE 109th Street (Redmond-Woodinville Road to 166th Avenue NE) 2 B NE 104th Street (166th Avenue NE to Avondale Road) 2 T NE 111th Street (166th Avenue NE to 172nd Avenue NE) 2 NE 116th Street (Red-Wood Road to Avondale Road NE) 2 NE 116th Street (Willows Road to 154th Place NE) 150th Avenue NE (NE 36th Street to NE 51st Street) 2 151st Avenue NE (NE 20th Street to NE 28th Street) 154th Avenue NE (NE 60th Street to Old Redmond Road) 2 154th Place NE (Red-Wood Road to NE 116th Street) 2 156th Avenue NE (NE 51st Street to NE 60th Street) 2 159th Place NE (Bear Creek Parkway to Leary Way) 2 160th Avenue NE (NE 85th Street to NE 90th Street) 2 T 160th Avenue NE (NE 90th Street to Red-Wood Road) 2 160th Avenue NE (Redmond Way to NE 85th Street) 2 161st Avenue NE – NE 83rd Street to Redmond Way 2 161st Avenue NE - NE 85th Street to NE 83rd Street 2 T 161st Avenue NE - NE 90th Street to NE 85th Street 2 161st Avenue NE – Redmond Way to Bear Creek Parkway 2 166th Avenue NE (NE 76th Street to NE 83rd Street) 2 166th Avenue NE (NE 83rd Street to NE 85th Street) 2 T 166th Avenue NE (NE 85th Street to NE 104th Street) 2 T 166th Avenue NE (NE 104th Street to NE 111th Street) 2 169th Avenue NE (NE 79th Street to NE 80th Street) 2 172nd Avenue NE (NE 111th Street to NE 116th Street) 2 B 172nd Avenue NE (West Lake Sammamish Parkway to NE 30th Street) 2 173rd Ave NE (NE 67th St to NE 70th St) 2 176th Ave NE (NE 65th St to NE 70th St) 2 178th Place NE/180th Avenue NE (NE 76th Street to Union Hill Road) 2 T 180th Avenue NE (Redmond Way to NE 76th Street) 2 Table 16. Collector arterial streets (continued) ---PAGE BREAK--- Appendix D: Street Classification System 185 Connector Streets General Purpose Through Lanes Modal Priorities Widest Existing Future Avondale Way (Redmond Way to NE 76th Street) 0 2 NE 63rd Street (177th Avenue NE to E Lk Samm Pkwy) 0 2 NE 65th Street (185th Avenue NE to 192nd Avenue NE) 0 2 NE 73rd Street (185th Avenue NE to 192nd Avenue NE) 0 2 NE 76th Street (Leary Way to Bear Creek Parkway) 2 2 NE 80th Street (169th Avenue NE to 172nd Avenue NE) 2 2 NE 80th Street (185th Avenue NE to 188th Avenue NE) 0 2 NE 100th Street (166th Avenue NE to 171st Avenue NE) 2 2 158th Avenue NE (NE 83rd Street to Redmond Way) 0 2 158th Avenue NE (NE 85th Street to NE 83rd Street) 2 2 168th Avenue NE (Redmond Way to NE 79th Street) 2 2 171st Avenue NE (NE 80th Street to NE 88th Street) 2 2 B 171st Avenue NE (NE 88th Street to NE 100th Street) 2 2 172nd Avenue NE (NE 116th Street to NE 128th Street) 2 2 187th Avenue NE (East Lake Sammamish Parkway to SR 202) 2 2 192nd Avenue NE (Union Hill Road to NE 65th Street) 0 2 176th Avenue NE (NE 70th Street to Redmond Way) 0 2 177th Avenue NE (NE 63rd Street to NE 68th Street) 0 2 180th Place NE (NE 63rd Street to East Lake Sammamish Parkway) 0 2 Table 17. Connector streets Collector Arterial Streets The number of Future General Purpose Through Lanes Modal Priorities 185th Avenue NE (NE 68th Street to SR 202/Redmond- Fall City Road) 2 T 185th Avenue NE (NE 76th Street to NE 68th Street) 2 185th Avenue NE (Union Hill Road to NE 76th Street) 2 A Table 16. Collector arterial streets (continued) ---PAGE BREAK--- Appendix E: The Unfunded Buildout Plan 186 This page left intentionally blank.