CCP 09-27-2004 - Laserfiche WebLink

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. . . acceptable level of service assuming signalized intersections are the following: . Up to 8,000 Vehicles Per Day - 2 lane roadway . Greater than 8,000 vehicles per day - Add left turn lanes . Greater than 13,000 vehicles per day - Add right turn lanes . Greater than 15,000 vehicles per day - Lane configurations are determined by directional splits. 2003 traffic volumes of 19,600 vehicles per day indicate that at a minimum two travel lanes with left and right turn lanes are needed. Additional through capacity will need to be provided in the future to accommodate projected volumes of up to 29,400 vehicles per day. 5.3 ALTERNATIVES Municipal staff and elected officials of both communities and the County reviewed and discussed three section alternatives: Alternative 1 - No-Build The No-Build Alternative includes no upgradcs to the existing corridor other than potential future overlays on existing pavement. This alternate docs not provide a safe, efficient or consistent north-south conidor for motor vehicles and pedestrians. Therefore, the No-Build Alternative would not correct the current deficiencies identificd and is not considered a feasiblc altcrnativc. Alternative 2 -- Five Lane Section This section provides for two 12 foot travel lanes in each direction, a continuous 14 foot center left turn lane, right turn lanes at intersecting streets, concrete curb and gutter, plus a detached eight (8) foot bituminous path on the west side and 5 foot concrete sidewalk on the east side. Right turn lanes and limited median features can be added for stronger channelization control at Victoria Street and the approach to Highway 96. A new signal system would be installed at Victoria Street and interconnected with signals at Cummings Park Drive and Highway 96. Alternative 3 -- Four Laue Urban with MedIans 'Ibis section provides two 12 foot travel lanes in each direction channelized with raised medians, concrete curb and gutter, detached 8 foot bituminous path on the west side and 5 foot concrete sidewalk on the east side. Left tum lanes and right tum lanes are provided at major intersecting streets. A new signal system would be installed at VictOlia Sh'eet and interconnected with signals at Cununings Park Drive and Highway 96. Discussion Both Alternatives 2 and 3 provide the additional through lane and tuming movement capacity necdcd in this corridor. Both would provide acceptable service levels. One advantage Altemative 2 has over 3 is that it does serve lcft tuming movements to 9 private residences and Chatsworth Street. Those access points would only be provided right-inhight-out access with the median design. The advantage Alternate 3 presents over Alternate 2 is in the area of safety -- raised medians provide a physical barrier thaI acts as a stronger channelization element to heavy traffic streams. Continuous left tum lanes, while providing functional and flexible access are often used incorrectly by motorists -- common prohlems being tled to use as a psuedo passing lane or acceleration lane. In the case of projected traffic volumes of 29,600 on Lexington Avenue, those additional access movements to private homes and ChatswOlth "J') >:O(i,:C \\,'1'n.l1' 'i