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Local street traffic changes were most marked on streets leading to and over 1-580 and on <br />Dublin Blvd. Eastbound ramp volumes increased as allowed by the increased metering <br />rate; northbound overpass volumes generally headed towards Dublin Blvd. decreased. The <br />net effect was found to be mildly beneficial on city freeway feeder streets south ofi-580. <br />The largest beneficiary from this capacity increase was found to be Dublin Blvd. easterly of <br />Fallon (El Charro) Rd. The additional capacity at 1-580 appears to have the effect of <br />Pleasanton work trips choosing to use it rather than the Stanley Blvd. eastbound route. <br />Sunol Blvd. volume barely drops, while Stanley Blvd. sees a 500-plus net drop in <br />eastbound traffic. Regional cut-through routes and eastbound Pleasanton worker trips <br />appear to not head as frequently to Santa Rita Rd. to bypass 1-580 congestion. <br /> <br />The 1-580 capacity improvement modeled allows increased volumes eastbound at the <br />metered ramps. Its primary benefit appears to be moving Pleasanton and Dublin workers <br />onto the freeway. Capacity does not increase westerly of Hacienda Dr., but elimination of <br />the eastbound bottleneck allows about 460 more vehicles through the 1-680-to-Hacienda <br />Dr. segment. This does not appear to be sufficient to significantly change the regional cut- <br />through volumes in the North Pleasanton area, volumes which were not large to begin with. <br /> <br />Table 3 Effects of Widening Highway 84---Four Lane Expressway <br /> <br />Street Segment <br /> <br />Net Change in Peak Hour <br />Volumes (# Trips) <br /> AM <br />Northbound / Southbound <br /> <br />Net Change in Peak Hour <br />Volumes (#Trips) <br /> PM <br />Northbound / Southbound <br /> <br />Highway 84 <br />East of Hwy. 1-680 +921 +242 +1,122 +1,061 <br />North of Vineyard +599 +800 +765 +6 ! 5 <br />North of Stanley +205 +189 +285 -73 <br /> <br />1-680 <br /> North of Hwy 84 -503 -449 <br /> South of Sunol -263 -417 <br /> South of Bemal -366 -257 <br /> South of I-580 no significant change <br /> <br /> -319 -382 <br /> -309 -170 <br /> -175 -162 <br />no significant change <br /> <br />Foothill plus Pleasanton- <br />Sunol Rd. <br /> South of Castlewood <br /> <br />-303 -584 -497 -702 <br /> <br />Stanley <br /> East ofE1Charro <br /> <br /> A.Mo <br />Eastbound / Westbound <br /> <br /> P.Mo <br />Eastbound / Westbound <br /> <br />-292 -233 -335 -745 <br /> <br />Sunol <br /> EastofI-680 <br /> <br />-201 -276 -364 -479 <br /> <br />14 <br /> <br /> <br />