HomeMy WebLinkAboutComments PWE 3/2/2010
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Memorandum
City of Springfield
Date:
To:
From:
Subject:
November 14,2005
Sarah Summers, Planner II
Gary McKenney, PE, Transportation Planning Engineer
DRC2005-000n - Dukes & Dukes Site Plan
The Transportation Division has reviewed the materials provided with the subject application.
The recommended findings and conditions outlined below are provided for your use in preparing
the land-use decision,
General
Finding: The development site is a 0,54-acre parcel located on the west side of 28th Street, south
of 'G' Street (Map 17033611, Tax Lot 11300), Approval of this proposal would allow
construction of four duplex residential units and associated parking; an existing home on the site
would be removed,
Transportation System Impacts
Finding: 28th Street is designated a minor arterial street in the RTP, The roadway is 36 feet wide
and is improved with paving, curb, gutter, sidewalk and low pressure sodium street lighting, The
roadway provides single northbound and southbound travel lanes and a two-way center turn lane,
Finding: Based on ITE Land Use Code 220 (Apartment), development of the site as proposed
(eight dwelling units) would generate 54 additional vehicle trips per day and 5 PM peak-hour
vehicle trips onto 28th Street. In addition, assumed development may generate pedestrian and
bicycle trips, According to the "Household" survey done by LCOG in 1994, 12,6 percent of
household trips are made by bicycle or walking and 1.8 percent are by transit bus, These trips
may have their origins or destinations at a variety of land uses, including this site, Pedestrian
and bicycle trips create the need for sidewalks, pedestrian crossing signals, crosswalks, bicycle
parking and bicycle lanes.
Finding: To provide for safe pedestrian and vehicular access, street lighting is needed that will
adequately illuminate the street and sidewalk areas adjacent to the development site, The city's
street lighting standards, which are based on the Illuminating Engineering Society (IES)
American National Standard Practice for Roadway Lighting RP-8, specify the lighting type and
required lighting levels for street and pedestrian areas, In low and medium density residential
districts these standards specify high pressure sodium type street light fixtures. For a 36-foot
wide asphalt street, such as 28th Street, the table below shows the required horizontal
illuminance, street light type and spacing needed to achieve this lighting level.
Street, Width, Classification
28 Street, 36', arterial
Re uired Illuminance
9.4 foot-candles
Date'i":6ceived:--i/-;/d.>/n
Planner: AL /
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DRC2005-00073 - Nadel sillan
November 14, 2005
Page 2 of 2
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Finding: The development site has 70 feet of frontage on 28th Street. Existing lighting which
contributes to illumination of this frontage consists of a 90-watt low~pressure sodium street light
on the west side of 28th Street at the southern site boundary. This street light does not provide
the quality or quantity of illumination necessary to meet adopted city standards for safe and
efficient traffic movements. Based on 70 feet of street frontage, the proposed development
significantly contributes to the need for street and sidewalk illumination required to meet
adopted city standards. Construction by the applicant of street lighting improvements, in
proportion to the need created by the proposed development, and aimed at meeting the adopted
standards would be appropriate. However, construction of such limited improvements is not
economically or technically practicable at this time. Execution of an Improvement Agreement is
an appropriate method of assigning this cost responsibility.
Recommended Condition: Execute and record an Improvement Agreement for street
lighting on 28111 Street.
Finding: As conditioned, existing and planned transportation facilities would be adequate to
safely accommodate additional vehicular and pedestrian traffic generated by the proposed
development.
Site Access and Circulation
Finding: Installation of driveways on a street increases the number of traffic conflict points. The
greater number of conflict points increases the probability of traffic crashes. SDC 32.080(1) (a)
stipulates that each parcel is entitled to "an approved access to !! public street."
Finding: Current access to the site is via a 16-foot wide driveway onto 28th Street located near
the southern site boundary. The applicant proposes to close this access and construct a new 20-
foot wide driveway at the northern site boundary.
Finding: SDC Table 32-2 specifies that the throat depth for driveways serving multi-family
residential developments shall be a minimum of 18 feet as measured from the curb face to the
first parking stall. Parking stall # 1 depicted on Plan Sheet 4 of 7 is located 12 feet from the face
of curb on 28th Street.. .
Recommended Condition: The on-site parking layout shall be re-designed to comply with
the standards in SDC Table 32-2.
Recommended Condition: Provide and maintain adequate vision clearance triangles at
the corner of the site driveway per SDC 32.070.
Please provide a copy of the draft Decision for my review prior to issuing' the final decision.
Date Received: j'~/~'b
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Planner: AL