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Home My WebLink AboutItem 4.07 Dublin Blvd Median Closure (2) ?,'2-Q- AGENDA STATEMENT CITY COUNCIL MEETING DATE: January 14 , 1985 SUBJECT: Dublin Boulevard Median Closure Between Dublin Court and Dougherty Road EXHIBITS ATTACHED: 1 ) Memorandum from TJKM dated 12/20/84 2 ) Diagram of Modification RECOMMENDATION: 0 Authorize staff to proceed with plans as originally proposed. FINANCIAL STATEMENT: If the City agrees to the interim modification an additional $12, 000 - $15, 000, ( 1985 Dollars) in construction costs would be incurred at a later date should the median be closed DESCRIPTION: At the City Council Meeting of December 10, 1984 , Mr. John Vitale and the District Manager of Standard Brands Paint spoke against the closure of left turn access to the Dublin Station Center as part of the proposed signal improvements at Dublin Boulevard and Dublin Court . The City Council directed that the City Traffic Engineer meet with the two gentlemen to discuss alternatives to the complete closure and to report back to Council at its meeting of January 14 , 1985 . Mr . Chris Kinzel, the City Traffic Engineer has met with Mr. Vitale and has performed additional analysis regarding the timing of the median closure, (see attached memorandum) . As indicated in the City Traffic Engineer ' s memorandum, a left turn onl,7 into the Dublin Station Center would be feasible for the short term, provided that eastbound motorists in the through lane on Dublin Boulevard also be permitted to turn left onto Dougherty Road. This would require a modification of the existing median opening so that left turns in and out of the K-Mart parking lot, and left turns out of the Dublin Station Parking lot would be precluded. (See attached diagram) Since full closure of the median will be necessitated by the extension of Dublin Boulevard in the future; additional expense will be incurred by the City, if the median is modified as described above and then later closed. ----------------------------------------------------------------- ITEM NO. 4. 7 COPIES TO: Standard Brands John Vitale Lange/IIilde U "• 4637 Chabot Drive,Suite 214 Pleasanton Ca. 94566 (415)463-0611 MEMORANDUM ' DATE: December 20 , 1984 TO: Lee Thompson, City Engineer, City of Dublin FROM Chris D. Kinzel SUBJECT: Median Opening on Dublin Boulevard between Dublin Court and Dougherty Road At the request of Mr. John Vitale of Reveille Waterbeds , we have examined the possibility of maintaining a one-way median opening on Dublin Boulevard between Dublin Court and Dougherty Road after the installation of traffic signals and median islands at the intersection of Dublin Boulevard and Dublin Court. The opening would serve the existing retail/office complex on the south side of Dublin Boulevard, allowing inbound left-turn movement only. The provisions of this one-way median opening would limit the eastbound left-turn storage length on Dublin Boulevard at Dougherty Road. However, it is projected that in the near term the existing 125 foot storage length , which could be maintained, will be sufficient to serve the left-turn traffic. Moreover, because of the split-phasing operation at the intersection of Dublin Boulevard/Dougherty Road, the eastbound through lane can be made into a through plus left-turn combination lane to also serve the left-turn movement, if needed. The existing peak hour eastbound left-turn volumes are 41 in the morning and 66 in the evening. The future p .m. peak hour projection for that eastbound left-turn movement is 97 vehicles per hour, as projected in the Dublin Boulevard Traffic Study conducted in March 1984. That study, although considered a buildout condition within Dublin , did not fully account for the developments proposed in Contra Costa County, which could generate more eastbound left-turn traffic on Dublin Boulevard at Dougherty Road. Therefore, we are recommending that in the interim a one-way median opening be maintained for westbound traffic making the inbound left-turn movement between Dublin Court and Dougherty Road (see attached figure) . The Dublin Boulevard specific plan line should continue to show a full closure of the median opening, which could be implemented when it is warranted by the increase in the eastbound left-turn volume at Dougherty Road. 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