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BACKGROUND <br /> The 1-580 Eastbound Express Lane Project will convert the newly constructed <br /> eastbound HOV lane, from Hacienda Drive to Greenville Road, to a double <br /> HOV/Express Lane facility. The 1-580 Westbound Express Lane Project will convert the <br /> westbound HOV lane to a single HOV/Express Lane facility from Greenville Road to <br /> San Ramon Road/Foothill Road. For efficiency purposes, the 1-580 Eastbound and <br /> Westbound Express Lane Projects have been combined into one express lane <br /> construction project. <br /> Due to the volume of existing eastbound carpool vehicles, the design for the eastbound <br /> Express Lane Project has two lanes instead of one. This second lane provides the <br /> additional capacity needed for carpool vehicles and creates excess capacity that may <br /> be filled by single occupancy drivers. Both of these lanes will function in the same <br /> manner as HOV/Express Lanes. The westbound Express Lane is a standard single <br /> lane design. <br /> DISCUSSION <br /> The design of the 1-580 Express Lanes will allow for "nearly" continuous access into and <br /> out of the Express Lanes. This is different than the design of the 1-680 southbound <br /> express lane, which incorporates only a few points of entry/exit along the 14 mile stretch <br /> of the project. The 580 project is 14 miles in length and vehicles will be allowed to enter <br /> and exit the lanes at any point along the corridor. There are two exceptions to the <br /> continuous access: <br /> • Eastbound - Hacienda Drive to El Charro Road <br /> • Westbound - Hacienda Drive to Foothill Road <br /> For these two see ments vehicles will not be allowed to enter or exit. <br /> 1-580 Express Lanes MIN Ope ing(GL i <br /> Bav ark -:— <br /> 680 Dublin - <br /> a ' am <br /> j 5S0 <br /> QTo Oakland 4 § g` velWb s � o <br /> o, o <br /> � To Stockton D <br /> a :nna � <br /> a A, <br /> Porlob <br /> l I- <br /> \ Pleasanton a Livermore <br /> �� Not to Scale <br /> 0-1,Z;ta ib und;p ess ones -�� r One Westb,oundpExp ess inane , <br /> Lanes begin at Hacienda(11 miles) Lane begins a1 Greenville(14 miles) <br /> ® No enM/exh horn eosnsoond express loom No enlry/edt harm westbound express lone from <br /> from Hacienda to PoEOn/El Cta o. �8 L1 Hacienda to end. <br /> Please note:For access to Santa Rita Road or b Please note:For access to 1-680 or Dougiredy, <br /> EI Chano/Fallon,do not enter express lanes. 'j exit express lane before Hacienda. <br /> Page 2 of 3 <br />