CCP 09-27-2004 - Laserfiche WebLink

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The following provides a summary of key dcsign clements and rationale for their use: . Urban Cross Section The roadway will be an urban section including four (4) inch concrete curb and gutter and upgrading drainage s1ructures. Medians (Channelization) Raised concrete medians provide strong direction to motorists -- helping to keep them in the correct lane position for both through movements and turning movements. Proper design reduces potential conflicts, and accordingly, improves overall safety and moves heavy traffic volumes more smoothly. Medians also have a secondary affect of introducing a visual element within the pavement area that fosters a perception by the motorist that the roadway is narrower -- thereby reducing motorists tendencies to speed. Traffic/Signals The posted speed limit will remain at 45 mph. Adding the additional n011h bound through lane will boosr capacity. Introduction of right and left tum lanes so that all h1ll1S occur from a protected position further boost through lane capacity. Installation of a new signal at Victoria Street along with improved intersection geometries and interconnection of the signal with recently installed signals at Cunnnings Park Drive and existing signals at Highway 96 -- will significantly improve safety ease for vehicle movements at Victoria Street. The signal at this location along with overall improvements to lane capacity on Lexington will also fostcr better "platooning" of vehicles, in turn creating more and larger breaks in the traffic stream so that ingrcss and egress from other intersecting streets and driveways will be safer and easier. . Bituminous Path/Concrete Sidewalk The detached, eight (8) foot bituminous path will be recons1ructed on the west side. A new five (5) foot concrete sidewalk will be cons1ructed along the east boulevard. Initial discussions with the City of Shoreview considered cons1ruction of an eight (8) foot bituminous path on the east boulevard. Coneems for encroachment on adjacent parccls and design/clearance requirements for paths lead to the Council opting for a five (5) foot concrete walk instead. Stonn Water Ponding Storm water ponding is currently in place at the south end of the project and also nrrther east in the Snail Lake Regional Park area. The latter currently receives storm water from the north one third ofthis segment of Lexington Avenue. The southern two thirds ofthe project flows to existing ponds and Karth Lake near Victoria Street. It is proposed that a peninsula area in the pond located at the southeast comer of Victoria and Lexington be substantially removed to enlarge the corresponding storage volume available for stOlm water treahl1ent. The larger volume would provide some level oftreatment for runoff currently running directly to Karth Lake and also offset water quality issues related to additional pavement area resulting from this proj eel. Noise Walls Minnesota Statute exempts County State Aid Highways from State Noise Standards. This is in part a response to the difficulty in achieving "effective" noise reduclions along roads with multiple access points. Breaks required for intersecting drives and streets seriously reduces the noise reduction achieved to the point where standard improvement thresholds carmot bc met. Limited effectiveness coupled with State Aid funding limitations has resulted in a decision by Ramsey County to not fund noise walls. The . '/':~ :11 I'. "') 2i)(J'J k