Agenda - Council - 04/25/2000 - Laserfiche WebLink

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Ms. Anita Ramussen Page 4 April 4, 2OOO The Argon Street cul-de-sac provides a safe and convenient turn-around for sight seeing vehicles, city maintenance operations (i.e, street sweeping, snow plowing, sealcoating and sewer cleaning) and normal neighborhood service vehicles (i.e. mail, buses, garbage pick-up and parcel delivery); and Because the majority of trips originating from or destined to the Mallard Ponds Development are going or coming from the southeast, south and southwest (estimated at 80% of all trips as shown on Exhibit A), there is a minimal impact of additional trips from Mallard Ponds on the local streets in the abutting subdivision to the north. Modifications for Alternative Street Layout #3 As mentioned previously, Alternative Street Layout #3 deletes the cul-de-sac turnaround on the south end of Argqn Street in the northeast corner of the Mallard Ponds plat and converts Barium Street to one-way southbound between 141st Avenue and Argon Street. The traffic volume impacts on area streets for traffic exiting and entering the Mallard Ponds Development on a daily basis, during the a,m. peak traffic hour and during the p.m. peak traffic hour for Street Layout #3 are shown on Exhibits D and E respectively. In summary, the 50-60 daily trips generated from the Mallard Ponds Development by the 6 units formerly on the Argon St. cul-de-sac have been eliminated from Argon St, and 142nd Avenue to the north, And the 15 daily trips exiting to the north via Barium St. and 141st Avenue now access Dysprosium Street via Argon Street. However, the 15 daily trips destined for the northerly portion of Mallard Ponds from TH #47 and CSAH #5 can be expected to still access the development via 141st Avenue and Barium Street, From a traffic operations and traffic safety standpoint, Alternative Street Layout #3 can be expected to have the following impacts: A second means of emergency vehicle access is provided to all units within the Mallard Ponds Development without exceeding the City's maximum permitted cul-de-sac length; No safe turn-around is provided at the south end of existing Argon Street (south of 142nd Avenue) and all vehicles, whether sight-seeing, performing maintenance work or providing neighborhood services, will either have to turn around in private driveways or back up to the 142r~d Avenue intersection. This will likely damage the private driveways and the backing up maneuvers are inherently more dangerous to neighborhood children, pedestrians, bicycles and parked vehicles along the street; Compliance with the one-way street system on Barium Street will become an enforcement issue; and H~kanson Anderson Assoc.,Inc. \\Ha01 \Shared Docs\Municipal~ARAMS~Y~2157~ra2157TIS4-00.dac 248 I I I I I I I I I I I I I I i I I I I