west allison road corridor study - cheyenne mpowest allison road – study overview zpurpose of...
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Cheyenne Metropolitan Planning OrganizationPublic Open House
August 5, 2009
WEST ALLISON ROADWEST ALLISON ROADCORRIDOR STUDYCORRIDOR STUDY
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West Allison Road – Study Overview
Purpose of ProjectTo maintain the Level of Service of the existing roadwaysTo provide safer travel for vehicles, bicycles and pedestrians
Project ComponentsPublic ParticipationTraffic Study – Baseline ReportEvaluation of Roadway Options35% Preliminary Plan and Cost EstimatingFinal Report and Recommendation to the MPO/City/County
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West Allison Road Corridor Map
West Allison Road Corridor begins at South Greeley Highway on the east end and runs approximately 1.7 miles West to Parsley Blvd. on the west end via Jefferson Road as the north leg and Pinto Lane as the south leg.
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West Allison Road and South Greeley Highway
Areas of Concern:• Signal timing• Lane Configuration • Right-of-Way Width
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East Half of West Allison Roadapproaching Greeley Highway
Potential Improvements:• New pavement with the
addition of curb & gutter, sidewalks, and multi-use paths
• Utilities (water and sewer)
• Modify Existing Drainage Conveyance
• Increase Sight Distance
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West Allison Road From South Greeley Hwy to Walterscheid Blvd. with Conceptual Improvements
• The east portion of West Allison Road approaching South Greeley Highway
• Section shown with curb, gutter and detached sidewalk
• Detached sidewalk includes proposed landscaped tree lawn
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Intersection of West Allison Road & Walterscheid Boulevard
• Beginning of West Allison Road modifications made in conjunction with South High School.
• Signalized intersection with turn lanes (To be constructed as part of the South High School Project)
• Revise alignment of east leg of intersection to match west leg.
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West Allison Road Walterscheid Blvd to Cribbon Ave
• Addition of curb and gutter, multi-use path from Walterscheid Blvd to Snyder Ave(Currently under construction as part of the South High School Project)
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West Allison Roadat Johnson Jr. High
• School property borders both sides of West Allison Road from Snyder Ave to Cribbon Ave
• Large Expanse ofpavement (60’) with straight alignment
• Students crossing between schools
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West Allison Road at Johnson Jr. Highwith Conceptual Improvements
• Addition of center island median with landscaping
• Addition of multi-use path (Currently under construction as part of the South High School Project)
• Existing curb and gutter to remain
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Roundabout at Snyder Avenue
• New roundabout at West Allison Road and Snyder Avenue. Entrance to South High School and Johnson Junior High
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Roundabout at Snyder Avenuewith Conceptual Landscaping
• New roundabout at West Allison Road and Snyder Avenue shown with conceptual landscaping.
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Baseline Report Summary
A Baseline Corridor Report was prepared by Western R&D summarizing the existing conditions of the corridor
The next few slides were taken from this Baseline Report.
These slides provide key information on the existing traffic conditions of the corridor.
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DBPrincipal ArterialGreeley Highway
BACollectorWalterscheid Blvd.
AAMinor ArterialParsley Blvd.
AACollectorJefferson Road
AACollectorPinto Lane
AACollectorCribbon Ave.
BACollectorAllison Road
(2012 est.)LOS
2008LOS
RoadClassification
Road Name
Allison Road Corridor
Level of Service in 2008 without South High compared to the
Estimated Level of Service in 2012 with South High at full capacity.(using the Plan Cheyenne criteria for LOS)
Level Of Service (LOS) is a gauge of the adequacy of transportation facilities to carry a given traffic load. Similar to grades in school, LOS is scored using letters from A to F, whereA represents the best conditions and F represents failure.
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AADT Measured to 2008Projected to 2030
(includes South High estimated ADT)
203010,063
20002,160 2009
3,374
20127,046LOS B
20198,093LOS C
20279,482LOS D
0
2,000
4,000
6,000
8,000
10,000
12,000
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2022
2024
2026
2028
2030
Year
AA
DT
Allison Road Corridor Projected Traffic Growth to the year 2030(using the Plan Cheyenne criteria of LOS)
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Moving on…
Allison Road Corridor StudyDesign Elements
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Corridor Study - Primary Focus
Evaluation and selection of:
1) Road Alignments
2) Right of Way Required
3) Road Sections
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1. Road Alignment Options“Evaluate Connections to Parsley Blvd.”
Use existing connections at Pinto Lane (part of South High Improvements) and West Jefferson Road. (no additional ROW required)
Connect West Allison Road through existing neighborhood.
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CR
IBB
ON
AVE
.
PAR
SLEY
BLV
D.
W JEFFERSON RD.
ALLISON RD.
PINTO LN.
Connection To Parsley Boulevard
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2. Right of Way Width Options
Current City and County street standard is 80’ for Collector Street
80’ right of way (more impact and cost)
65’ right of way (less impact and cost)
Varying Right-of-Way width
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Existing Right-of-Way Map & Areas of Focus
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3. Road Section Alternatives80 ft Road Section - more impact to existing parcels
36 ft. of pavement (2 travel lanes with shoulders)Detached 10 ft multi-use path and 5 ft sidewalkLandscaped tree lawns on both sidesExtensive acquisition of right-of-way required
65’ Road Section – less impact to existing parcels36 ft of pavement (2 travel lanes with shoulders)Attached 10 ft multi-use pathDetached 5 ft sidewalkLandscaped tree lawn on north side onlyLess right-of-way would have to be acquired as properties re-develop
Variable Section - Combination of the above two options requiring some additional right-of-way and some impacts to existing parcels.
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80 FT Road Section
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65 FT Road Section
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West Allison Roadat Johnson Jr. High
• Large Expanse ofpavement (60’) with straight alignment
• Students crossing between schools
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Streetscape Improvements Along Allison Road In front of Johnson Jr. High
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Additional Focus Items:
1) Public Concerns2) Drainage Improvements – offsite work3) Greenway trail continuation4) Johnson Jr. High driveway5) Project Schedule
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1. Public Concerns
Top Three Allison Road Corridor ConcernsBased on Questionnaire from first open house
Overall Safety (pedestrian, bicycle & vehicle)
Vehicle Speed
Traffic Volume Increase
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2. Drainage ImprovementsDrainage Improvements consist of:
• Change from rural to urban road section(Addition of curb, gutter and Sidewalk)
South High School Improvements(Storm Sewer between Desmet and Walterscheid)
Gateway South Development(Conveyance pipe and ditch to Allison Draw along with detention ponds)
Potential outfall via Gateway South (Conveyance of Allison Road runoff toAllison Draw)
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Gateway South Stormwater Outfall
Allison Draw
West Allison Road
S. Greeley H
wy.
PondGateway SouthDevelopment
Gateway South Drainage Improvements
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3. Greenway Path ContinuationGreenway Trail is being extended along Allison Road from Cribbon Ave. to Walterscheid Blvd. (South High Improvements)
Extend Greenway trail from Walterscheid to Greeley Hwy, coordination between the City and County will be required.
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Existing Greenway Path
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4. Johnson Jr. High Driveways
Review of potential problems with current exit location onto West Allison Road as traffic volumes increase with the addition of South High School.
Evaluation of possible second exit onto Cribbon Ave.
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CR
IBB
ON
AVE
.
WEST ALLISON RD
JOHNSON JR. HIGH
Johnson Jr. High Driveways
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5. Project Schedule (2009)
August Second Public Open HouseDrainage Basin StudyMPO Meeting –final report draftSteering Committee Meeting
October Third Public Open HouseMPO Meeting – submit final report and plansCheyenne Planning Commission MeetingLaramie County Planning Commission MeetingCheyenne City Council Meeting
November Laramie County Commissioners Meeting
Note: Final design, permitting and construction are not yet scheduled.
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Questions /Comments
Please provide Feedback
Contact Information
City of Cheyenne, MPO officeNancy Olson, Transportation Planner307-638-4366
Western Research & Development, Ltd.Gary Grigsby, PE & LS307-632-5656
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Thank you