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Page 8 of 18 per the City’s traffic model. • Iron Horse Trail: A new east-west trail along the south side of Busch Road, and north- south trail at El Charro Road connecting to the Iron Horse Trail and Arroyo Mocho Trail. • Santa Rita Road at Valley Avenue: Third southbound left turn lane and second westbound left turn lane. • El Charro Road: Four-lane roadway from Stoneridge Drive to Stanley Boulevard. To address the timing for construction of El Charro Road, the City requested Fehr and Peers complete an evaluation of the proposed developments in East Pleasanton and their effects on the circulation network using the City’s traffic model. The study’s purpose was to determine when El Charro Road will be necessary; that is, what increment of new traffic generated by East Pleasanton projects would cause the Valley Avenue/Santa Rita Road intersection to fall below LOS D. The traffic study indicates that the Santa Rita corridor will be at capacity with the construction of the Kiewit project. The intersection of Santa Rita Road and Valley Avenue, even after it is modified to include a third southbound left turn lane and a second westbound left turn lane, is LOS D falling to LOS E with the Kiewit project traffic. The addition of new trips with the Arroyo Lago and/or East Lakes projects further necessitates the construction of El Charro Road. As described above, a significant concern with the construction of El Charro Road is whether it would induce new cut-through traffic. Figures 1 and 2 show the existing AM and PM cut- through traffic patterns between I-580 and I-680, including the existing concentration of cut- through traffic on Santa Rita Road, particularly in the morning peak time. Although the final results of the analysis are still being refined, the City's traffic engineer expects the construction of El Charro Road will have a neutral effect in terms of cut-through volume (i.e., the same number of cut-through trips will occur). However, the cut-through traffic will migrate from the congested corridor along Santa Rita Road, in favor of the new El Charro Road; this reduction of cut-through volumes on Santa Rita Road allows for greater mobility within the city. Finally, with respect to El Charro Road, there has been discussion of whether El Charro is needed as a 4 lane roadway or if 2 lanes are sufficient. Additionally there has been discussion on where the extension would terminate, whether at Busch Road, or continuing further south to connect to Stanley Boulevard. This item will be further analyzed in the forthcoming traffic study, but based on previous analyses, and preliminary data from the current study shows minor improvements with a 2 lane El Charro but the Santa Rita corridor continues to fail. Similarly, not connecting El Charro Road to Stanley Boulevard would reduce the beneficial effects of the extension in alleviating congestion along the Santa Rita Road and Valley Avenue corridors. Construction of this southern segment will be more complex and costly, since the road needs to be designed with an undercrossing of the UPRR line. At the most direct connection point, there is limited distance between Stanley Boulevard and the railroad line, so the alignment and geometry of the intersection will need to be adjusted to ensure it is feasible. Page 207 of 749