HomeMy WebLinkAboutRIGDEN FARM, 9TH FILING, PARKSIDE COMMONS - PDP - 56-98T - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDYN
SCALE: 1"=100'
SITE PLAN Figure 2
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NO SCALE
SITE LOCATION Figure 1
between Limon Drive and Drake Road. Applying Drawing 19-03 from the
"Larimer County Urban Area Street Standards," indicates that a setback of
40 feet is required from the flowlines on Kansas Drive and Rockford Drive
to the first parking stall. At both driveway accesses to the public
streets, there are garage accesses that are 37 feet from the flowline of
the respective streets. This will require a variance request for this
standard. The primary reason for the setback is so a vehicle backing from
a parking stall will not cause a delay such that a queue into the public
street (Kansas or Rockford) will occur. The backing/unparking maneuver
takes less than 30 seconds to execute. The critical time period is the
afternoon peak hour when the highest number of entering vehicles will
occur. While the distribution between driveways should be relatively
equal, the following analysis assumes that 60% of the ingressing vehicles
will utilize one driveway, resulting in 16 vehicles in the peak hour.
Assuming a conservative peak hour factor of 0.5, all vehicles enter in a
half hour period. This results in one vehicle every 1.9 minutes. Given
this conservative analysis, the probability of more than one vehicle
entering a given driveway during a backing/unparking maneuver is very
small. It is concluded that the variance will not be detrimental to the
public health, welfare, and safety. A variance letter, dated February 4,
2003, was submitted. In a phone conversation a few days later, Dave
Stringer, Fort Collins Engineering Department, indicated that the 37 foot
separation was not a problem.
With development of Tract U at Rigden Farm, all of the adjacent curb,
gutter, and sidewalk will be built along adjacent internal streets in
conformance with the Fort Collins street standards. Kansas Drive will be
built as a local street in its entirety between Drake Road and Limon Drive.
Drake Road, north of this site, is a two-lane road with a rural cross
section. The "finished" cross section of Drake Road starts at Timberline
Road and extends to the approximate location of future Illinois Drive.
Proposed development on the Rigden Farm Commercial Parcel is in the City
development review process. It is not certain how far east of Illinois
Drive the Rigden Farm Commercial Parcel will build Drake Road. It is likely
to extend to between Illinois Drive and Iowa Drive. From there, Drake Road
will transition back to the two-lane cross section. Research indicates
that Drake Road, east of Timberline Road, will be built to Rigden Parkway
by the City of Fort Collins. The budget for this segment of Drake Road has
been confirmed by the Fort Collins Engineering Department. This future
construction will improve the Drake Road frontage along Tract U at Rigden
Farm.
It is concluded that the Tract U at Rigden Farm will generate less
traffic than that analyzed in the cited transportation impact study.
Therefore, the forecasted operation of the key intersections and the
geometry necessary to serve the Rigden Farm development as reported, is
adequately addressed. This proposed development is consistent with the
previously approved development at Rigden Farm. No further transportation
analyses are required at this time.
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MEMORANDUM n R�
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TO: Dan Warden, Parkside Homes C, � ���` FG•9�
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City of Fort Collins Staff 6�
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FROM: Matt Delich
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DATE: February 10, 2003
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SUBJECT: Tract U at Rigden Farm transportation study
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(File: 0274ME02)
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The Tract U at Rigden Farm is a residential development
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proposed in the parcel bordered by Drake Road on the north, Rockford
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Drive on the east, Limon Drive on the south, and Kansas Drive on the
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west_ Figure 1 shows the location of this parcel within the Rigden
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Farm area. It appears that the alignment of Kansas Drive has been
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adjusted from that shown on the overall Rigden Farm Plan. Kansas
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Drive has been extended from the alignment south of Limon Drive. A
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four -leg intersection has been created and this parcel is slightly
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larger than that shown in the original Rigden Farm site plan. Figure
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2 shows a site plan of the Tract U at Rigden Farm. The "Rigden Farm
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Transportation Impact Study," January 1999 addressed the
transportation impacts of the overall development. A comparison of
the trip generation was requested by the City staff. Alternative
modes analysis was provided for the Rigden Farm development,
therefore, additional alternative mode analysis is not required.
In the cited study, this parcel within Phase A of Rigden Farm
contained 88 apartment dwelling units. From Table 2 of the cited
study, this parcel was expected to generate 583 daily trip ends, 45
morning peak hour trip ends, and 55 afternoon peak hour trip ends.
With the parcel adjustment caused by the realignment of Kansas Drive,
this parcel also includes some land that was in the tract to the
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west. The proportional trip generation from Table 2 in the cited
study for this tract was 111 daily trip ends, 8 morning peak hour
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trip ends, and 10 afternoon peak hour trip ends. The resulting total
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trip generation from the cited study was 694 daily trip ends, 53
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morning peak hour trip ends, and 65 afternoon peak hour trip ends.
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The Tract U at Rigden Farm is proposed to have 71 townhome
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dwelling units. Using Trip Generation, 6Lh Edition, ITE as the
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reference document, this parcel is expected to generate 420 daily
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trip ends, 31 morning peak hour trip ends, and 39 afternoon peak hour
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trip ends. The trip generation of the current proposal for Tract U
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will be less than that considered in the "Rigden Farm Transportation
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Impact Study" for the same land area.
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The Tract U at Rigden Farm is proposing to have one driveway
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access to Kansas Drive and one driveway access to Rockford Drive as
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shown in Figure 2. The forecasted daily volume at any one of these
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accesses is expected to be approximately 235 vehicles. Kansas Drive
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and Rockford Drive are classified as a local streets and are
forecasted to have less than 750 vehicles per day on the segments