10.430 Lower-Order Residential Street Classification System.
Residential streets conduct local traffic to collector and arterial streets at relatively low traffic volumes and speeds and provide important direct land access to individual parcels. There are three categories of residential streets as follows:
(1) Standard Residential Street Description. Standard residential street classification is a local street that prioritizes access over traffic flow and generally serves less than 2,500 vehicles per day. The standard residential street classification is the highest of the residential roadway classifications, connecting neighborhoods to collector roadways. This designation provides one travel lane and on-street parking in each direction with a sidewalk and planter strip on both sides. Typical volumes and speeds on standard residential streets are low enough to accommodate shared use of travel lanes between bicyclists and motorists. Six inches of right-of-way is to be provided behind the sidewalks to accommodate property survey monumentation. The width of the planter strip is measured from the face of curb to the front edge of the sidewalk, and shall be planted with trees identified on the City-approved street tree list.
Standard Residential Street Cross-Sections.
(a) Standard Residential Street. For use along standard residential roadways.
(2) Minor Residential Street Description. A street which provides direct access to immediately adjacent residentially zoned land, provides neighborhood street connectivity and which serves up to 100 dwelling units. On-street parking is provided on both sides of the street. Design requirements for a minor residential street include two travel lanes with sidewalks and planter strips on both sides. The width of the planter strip is measured from the face of curb to the edge of the sidewalk, and shall be planted with trees identified on the City-approved street tree list. Those minor residential streets that are not through streets shall terminate in a standard cul-de-sac that complies with Section 10.450. In order to ensure that there is at least 20 feet of unobstructed clearance for fire apparatus, the applicant shall choose from one of the following design options in coordination with the Fire Department:
(a) Clustered, offset (staggered) driveways (for an example see Section 10.430(3)), and fire hydrants located at intersections with the maximum fire hydrant spacing along the street of 250-feet shall be provided. The Fire Department shall approve the design of offset/staggered driveways.
(b) All dwellings that front and take access from minor residential streets shall be equipped with a residential (NFPA 13D) fire sprinkler system and fire hydrants located at intersections with the maximum fire hydrant spacing along the street of 500-feet.
(c) Total paved width of 33-feet with five-and-a-half (5 ½) foot planter strips.
Minor Residential Street Cross-Sections.
(a) Minor Residential Street. For use along minor residential roadways.
(3) Minor Residential Street Driveway Clustering/Staggering. To ensure a minimum 20-foot clearance for access of a fire apparatus (i.e., fire-truck) along minor residential streets, and allow for the ability to have a setup area in an emergency event, driveways shall be clustered and/or staggered. The image below reperesents how clustering/staggering can be accomplished. Lots 1 and 2, 3 and 4, 5 and 6, 8 and 9, and 10 and 11 are clustered together. The clustered driveways are offset on the opposite side of the street; in other words, driveways shall not be directly across from one another.
(4) Residential Lane Description. Residential lanes are the lowest order of the local residential facilities. These roads can serve a maximum of eight residences and extend no more than 450 feet. Those residential lanes that are not through streets shall terminate in a standard cul-de-sac that complies with Section 10.450. Six inches of right-of-way is to be provided behind the sidewalks or curb if no sidewalk is present. Sidewalks shall be provided on the parking side of the street, and planter strips are not required.
Special Note:
(i) An additional one and one-half feet of right-of-way (for a total of two feet behind the curb) is required for drainage behind the curb with no sidewalk when the road is on the outside border of a development. The additional one and one-half feet of right-of-way are not required when the street is internal to the development and there is a public utility easement (PUE) behind the curb.
Residential Lane Cross Sections.
(a) Residential Lane. For use along residential lane roadways.